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Sv translation

language	en

Azure Cloud

For the Azure Cloud, you specify a user during the basic installation. The root password remains hidden. However, you can switch to root with the following command, the input of your own password is required:

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Code Block

language	bash
title	sudo in Azure Cloud

sudo -s

Furthermore, it is necessary to assign the network card(s) to a zone. This is done by editing the network configuration:

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Code Block

language	bash
title	Netzwerkeinstellungen Azure Cloud

vi /etc/sysconfig/network-scripts/ifcfg-eth0
 
... (add at end)
 
ZONE=public
 
...
 
service network restart

System update

System aktualisieren und erste Pakete installieren

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Code Block

language	bash
title	Update and Installation

yum -y update
yum -y install nano unzip ntp ntpdate wget man openssh-clients rsync screen sysstat nfs-utils cifs-utils policycoreutils-python yum-plugin-versionlock yum-utils nmap bind-utils tcpdump lsof tmux tmpwatch
yum -y install https://repo.ius.io/ius-release-el7.rpm
yum -y install epel-release

# LAG: NO LONGER NEEDED
# Removed 17.09.2018 after feedback from FK
# yum -y install http://mirror1.hs-esslingen.de/repoforge/redhat/el7/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm
# yum-config-manager --enable rpmforge-extras

Reboot

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Code Block

language	bash
title	Reboot

reboot

disable ipv6

Warning

title	ipv6

If the yum update fails because of IPv6, ipv6 can be disabled.

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Code Block

title	Disable IPv6

vi /etc/sysctl.d/disable-ipv6.conf

# Add the following lines

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

# Then issue the following command
sysctl -p
 
# Then edit yum.conf
vi /etc/yum.conf

# Add the following line
ip_resolve=4
 
# Then reboot
reboot

Basic configuration

Make sure firewalld is running (Required for Azure Cloud installation)

The following commands ensure that firewalld is running.

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Code Block

language	bash
title	firewalld configuration

systemctl disable iptables
systemctl mask iptables
systemctl enable firewalld
systemctl start firewalld

Create User jtel

The following commands create the user jtel, add it to the group wheel and give it the password <password>:

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Code Block

language	bash
title	jtel User

useradd -m jtel
gpasswd -a jtel wheel
printf '<password>\n<password>\n' | passwd jtel

Enter SSH key

Next, the SSH keys of the jtel project technicians are entered so that a secure login is possible without separate password entry. By default, neither the SSH configuration directory nor the corresponding configuration file exists in root's home directory. All this is generated with the commands in the following code block:

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Code Block

language	bash
title	SSH Keys

mkdir -p /home/jtel/.ssh
cat << EOFF > /home/jtel/.ssh/authorized_keys
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAgJWox9vkWssx24V6m+VB/9cfFUznUnVJqHeSnQFcE+ANzH+lgv90jQYXRf8XLSaKA4HZGO7SFUwLz7eNHk0lIS+TG+WKGrjl3GRvzNoYVAapeKUV7HjbeagQPNOCKTr6G8Vi/GVMyOx8XhJAgpr5gjyW9GdMdqnOS9uxd83BCh/UiAP9oVUbLiIIxbtmLAzyfJdjnbFP9sJXw96Vl040Fe4aoLofrkPyPu7cst6TPJx5myDhORG31nD/2iwUNLfv58m9ABMsePfhqzSp/Hi2XY/e5gikDh3xUxoBmL9fWwbiFb92AFW08rP1CtoCEtOe2nJkdtRzt0GiE+A+zgdDjw== support@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuP5DEZDI6/CITTqk8qburqDuKNj6jnQ9Zbjz6BO+5P8MlrS8KT7y56u/PSqdO3OzD58D2JS0yNvM5RbBGYDUD1ng7VSJLFLfErbuCzJ/Q+BSRaee+7MhLWXdVSc/EY2B4qUcZGRL/NXHtAY/3KvSSU3wnhI4edLYMAzuxAhNEPRkmniq1CAuykDdHvm0kVQzaSShYDBQWIlbWIMG6jsCmMpZR7v+v6gKWeowQkM4T4XZ1f2K5zlQXd6FHGY8C/+XICefum2qgQtqgjfQMoqIQbnmfKDGIHPvkas287tdCbU4y1lTsJbTiT7INkd6QbiVUayVxVwwoV+G2F7WofN4nw== root@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEArTi8N08gDz1CvDriZNALa1tHky/1+QNP0WU43dI7hkn2zH7fz9bXAs32z7dRjfgxaYXWPmClcDLDb0xwjGfMXK0HABPtp0bxh/58Y0QowBUJkcNi6hUphT+ArGkpjQb5CJcArnbLO727R8jJFgE1QpiWdehd5t3ec0wOL0NhnIE63S+DUm7+bQW6Z8Kmzl0+opGyoURLf8hxeAIUJwdeMFN7AIVPZlyuPobowwjGDXD9YpwXZ2oPtg6XISwW/O1fsetzmGkgD4gedxJxjc5x5ByZX98UsNJORrG5R5slLqQTJkJzGBLpH8kC9WLIEW0RduVR2mrQzOBRgA92i5ZUFw== lewis.graham@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9W40vFohIPQsH6Q5Rfef7xiC4WRHOkMaMsUXxLCnTCDGI0PDib23NBUTevcnAc+OrCUITRmwngRbcItbR9QM1qNhzrwS8ZI00psZVVnBUwVVpX4UJtmX0CDrtVwH1yz51/WnZVeS17JqoMjVMB3p+n1CjViwh6qlRTI/9F/KfaOfiLEiHnvcnmSq67R7o5wP65TR00xqA20E569M1lcdn43xL2GylkwHuWw+XcusKqf+lnaawFWhdZUTOuF3ZB+ssuEbXSyZEGtc5/HNUG8rg9tutzAfq3fNWc5Y5pY+B048g4oDyAQpwMB7i9OwNNk1IEZA+rmqIImf7XLVKIsNn andrey.tsvetkov@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAkBiz9SsIXMO/a+7hCxNGQuQ4s/gqUZ6pyxDxjpDTD+bewxumyhn5aITbBSuHpx0n05JL4nGGdROii54ATildm3Uhi8JSljGy5uv97Sw8Kpy0eO314tOLU3NkAe2YOH1aUeArne4bYPebKBq0r1oln1Gu2+TFvCmMqu3FmleMv1xvw/waTwO57hSBPN83gOaJR7w6lOUp5HjYLSA0zRs1Os3g6ldQkHeGBknJ6jChqFXJHGl0KYzZGv3Q46fVTptS7NACxZs+ARUzJjbGjxnpHYK8rmSoTfoBS4qlN5+LxYKG341Hmq7cOsaISwUFbE/CbFOqUtjBviI1c7RLgtGnJQ== serge.djomo@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuh3ZLgQo2e9Uv1vAQxxCGxe9D3u8DWh4egeteUAPj4b7tOxQ6to3zAlGytUR9R6sANL/CIP3nEA2d3r4km0FQWQ4QFCLTFjyXl0Kvsn1ahN8DljJ6mRlwtvN2r5mBIEy1ClGCh+Jvchzf4ZhXrWxOTYYO77O8wjj9Zbk0Y6wI2qBnE6TaxsRQ7Z61zTe80xfLPQLKjgQ/5Hdk0z0HAx3jEsZRo9CqMLb44UD+6jVCih1JPMFcnUu0uxRQdOHrg243tqAUmuqICWompZNO75v3HjIIXOebxVGBXugrYc2xR1q964/EE0ZR7JMWM+HJ47V8WJKkE126n9ZElCqNGIR+Q== heidi.mueller@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAilON3Cn1bZPBYtv67Bv63llD1KMTTH52/ioPLm+qYYDV80mSHSb+PHD9awXNKNv5iTecaQ/a56CkK0z+KI5zvJb3EiRZaRe70cIqdflHmTcasVPVk1hAma5xc5UOCr+dKokqMQGwpDRrDvdS3atflQznvlR8+qoxPjlKC4KDx0GOUeSOIPBO6DdYGPlFX6ohMVRE7p/vHIRAOfehmG1xFtfk+rGPmgiblPWWWklKYQUfMnHI0pqFJwrPW46nqdUlQwtknATZC2cuKe931zstFhuDsm218yS4hTTlcjw5i/DH7PFr9Y58BtY6ZTy8khwTUeMPpSxE7i2WYoqoJ7DXcw== sou@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEA0czZLbpaxo/EY9iHDq9n6EWTALeYB7GVmp/mLwp66zeV4DbvTm+3FDUJSD9rqMJzJkAAEicFe+II/ZdIeZzG4JdYf66M/Y6k0w0Y8jJqDtsdgUf3OJ1hJ53Z+BwFqy1vD/a7N2hxlEKD2rzyAfVb+xzTzhJTjpX1kNiUxDMXRZs4ytW0CbOqZSpTJ3eT9NS9gH188KFTvHN8rPzDAxRKcexO2fSzNa7e+dYsfImOQoYlxFBX5YU74Ay9F5b7K95Cxe8EstvKNVmjkNWgnNWuS2d7eabepC1jv3z0FdOGiVoZ1SDgqKz8ysBa6Rzkt5L5peHYAKyH8TedeUk7kRIwZQ== dhia@jtel.de
EOFF
restorecon -R -v /home/jtel/.ssh
chown -R jtel:jtel /home/jtel/.ssh
chmod 0700 /home/jtel/.ssh
chmod 0644 /home/jtel/.ssh/authorized_keys

Note: do not use all other SSH keys.

In order for these to function correctly, the SELINUX security labels must be adapted correctly. This is done by the command at the end of the code block.

Improve history function

The following command generates a configuration file to improve the history function of the shell:

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Code Block

language	bash
title	History Function

cat <<EOFF > ~/.inputrc
"\e[A": history-search-backward
"\e[B": history-search-forward
set show-all-if-ambiguous on
set completion-ignore-case on
EOFF

Improve Screen Multiplexer

The following command improves the display of the screen multiplexer.

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Code Block

language	bash
title	Screen Multiplexer

cat <<EOFF >> /etc/screenrc
# JTEL:Added
startup_message off
vbell off
hardstatus alwayslastline "%{kw} %{b}%H%{K}    < %-w%{Wb} %n %t %{-}%+w >"
# This lets work all functions keys in midnight commander
# termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
EOFF

Wheel (sudo) Configuration

The following command creates a configuration component to give users of the wheel group the right to execute commands as root using the sudo tool:

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Code Block

language	bash
title	Sudo Authorisation

cat <<EOFF > /etc/sudoers.d/wheelers
## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL
EOFF

Transfer shell configuration to jtel

The following commands replicate the shell configuration from the root user to the jtel user:

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Code Block

language	bash
title	Configuration jtel User

cp -a /root/.inputrc /home/jtel
chown -R jtel:jtel /home/jtel/.inputrc

Root hint for GIT

The following commands make it more difficult to execute GIT as root, since this should always be done in the context of the jtel user:

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Code Block

language	bash
title	root Warning for GIT

cat <<EOFF >> ~/.bashrc
alias git='printf "It looks like you are trying to run GIT as ROOT.\nFor jtel installations, GIT should always be run from the jtel user.\nIf you really want to run git as root, you will need to access it directly, using /usr/bin/git for example.\n"'
EOFF
source ~/.bashrc

Transfer SSH keys to root

The following commands replicate the SSH keys from the jtel user to the root user:

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Code Block

language	bash
title	Configuration jtel User

cp -a /home/jtel/.ssh /root
chown -R root:root /root/.ssh

Set NTP to PTB

The following commands enter the official time servers of the Physikalisch-Technische Bundesanstalt into the configuration file of the time synchronization service, configure the service to start automatically, synchronize the time once with one of the PTB servers and start the service

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Code Block

language	bash
title	Time Synchronisation

sed -i -e "s/^server 0.centos.pool.ntp.org iburst$/server ptbtime1.ptb.de iburst\nserver ptbtime2.ptb.de iburst\nserver ptbtime3.ptb.de iburst\nserver 0.centos.pool.ntp.org iburst/" /etc/ntp.conf
chkconfig ntpd on
ntpdate ptbtime2.ptb.de
service ntpd start

Check NTP

See here:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s1-Checking_the_Status_of_NTP.html

for an explanation

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Code Block

language	bash
title	Check Time Synchronisation

ntpq -p

Uninstalling anacron, installing cron

Since the anacron service stops if one of the maintenance scripts does not run, it is uninstalled and the cron service is installed:

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Code Block

language	bash
title	Uninstall anacron, Install cron

sudo yum -y install cronie-noanacron
sudo yum -y remove cronie-anacron

VMWare / Hyper-V / Virtualization Tools (NOT AZURE)

Install VMWare Tools

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Code Block

language	bash
title	Install VMWare Tools´

yum -y install open-vm-tools

Hyper-V

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Code Block

language	bash
title	Install Hyper-V Tools

yum -y install hyperv-daemons

Other virtualization environments

Contact the respective manufacturer.

Proxy Server Entry

If a proxy server is used then use the following commands to set this up for root and the jtel user - please adjust the upper lines:

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Code Block

language	bash
title	Configure Proxy Server

 
PROXY_USERNAME=
PROXY_PASSWORD=
PROXY_SERVER=proxy.example.de
PROXY_PORT=3128
PROXY_EXCEPTIONS=.example.de,.local,10.200.21.

if [ -n "$PROXY_USERNAME" ] && [ -n "$PROXY_PASSWORD" ] 
then
	PROXY="http://$USERNAME:$PASSWORD@$PROXY_SERVER:$PROXY_PORT"
elif [ -n "$PROXY_USERNAME" ] 
then
	PROXY="http://$USERNAME@$PROXY_SERVER:$PROXY_PORT"
else
	PROXY="http://$PROXY_SERVER:$PROXY_PORT"
fi

cat <<EOFF >> ~/.bashrc
export ALL_PROXY=$PROXY
export HTTP_PROXY=$PROXY
export HTTPS_PROXY=$PROXY
export FTP_PROXY=$PROXY
export RSYNC_PROXY=$PROXY
export http_proxy=$PROXY
export https_proxy=$PROXY
export ftp_proxy=$PROXY
export rsync_proxy=$PROXY
export NO_PROXY=$PROXY_EXCEPTIONS
EOFF

cat <<EOFF >> /home/jtel/.bashrc
export ALL_PROXY=$PROXY
export HTTP_PROXY=$PROXY
export HTTPS_PROXY=$PROXY
export FTP_PROXY=$PROXY
export RSYNC_PROXY=$PROXY
export http_proxy=$PROXY
export https_proxy=$PROXY
export ftp_proxy=$PROXY
export rsync_proxy=$PROXY
export NO_PROXY=$PROXY_EXCEPTIONS
EOFF

source ~/.bashrc

Ensuring name resolution

Edit the /etc/hosts file, and enter the names of the different machines for the solution:

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Code Block

language	bash
title	/etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6


192.168.1.10	acd-lb		acd-lb.example.com
192.168.1.10	acd-store	acd-store.example.com
192.168.1.21	acd-dbm		acd-dbm.example.com
192.168.1.22	acd-dbs		acd-dbs.example.com
192.168.1.22	acd-dbr		acd-dbr.example.com
192.168.1.31	acd-jb1		acd-jb1.example.com
192.168.1.32	acd-jb2		acd-jb2.example.com
192.168.1.40	acd-tel1	acd-tel1.example.com

Sv translation

language	de

Folgende Schritte werden direkt nach der Grundinstallation durchgeführt, bevor eine bestimmte Rolle des Servers konfiguriert wird.

Azure Cloud

Bei der Azure Cloud gibt man bei der Grundinstallation ein User an. Das root Passwort bleibt verborgen. Auf root kann man jedoch mit folgenden Befehl wechseln, die Eingabe des eigenen Passwortes ist erforderlich:

Translations Ignore

Code Block

language	bash
title	sudo in Azure Cloud

sudo -s

Desweiteren ist es erforderlich, die Netzwerkkarte(n) eine Zone zuzuordnen. Dies geschieht über das Editieren der Netzwerk-Konfiguration:

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Code Block

language	bash
title	Netzwerkeinstellungen Azure Cloud

vi /etc/sysconfig/network-scripts/ifcfg-eth0
 
... (add at end)
 
ZONE=public
 
...
 
service network restart

System Update

System aktualisieren und erste Pakete installieren

Translations Ignore

Code Block

language	bash
title	Update and Installation

yum -y update
yum -y install nano unzip ntp ntpdate wget man openssh-clients rsync screen sysstat nfs-utils cifs-utils policycoreutils-python yum-plugin-versionlock yum-utils nmap bind-utils tcpdump lsof tmux tmpwatch
yum -y install https://repo.ius.io/ius-release-el7.rpm
yum -y install epel-release

# LAG: NO LONGER NEEDED
# Removed 17.09.2018 after feedback from FK
# yum -y install http://mirror1.hs-esslingen.de/repoforge/redhat/el7/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm
# yum-config-manager --enable rpmforge-extras

Reboot

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Code Block

language	bash
title	Reboot

reboot

ipv6 Disabeln

Warning

title	ipv6

Falls das yum update scheitert, wegen IPv6, kann ipv6 disabled werden.

Translations Ignore

Code Block

title	Disable IPv6

vi /etc/sysctl.d/disable-ipv6.conf

# Add the following lines

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

# Then issue the following command
sysctl -p
 
# Then edit yum.conf
vi /etc/yum.conf

# Add the following line
ip_resolve=4
 
# Then reboot
reboot

Grundkonfiguration

Sicherstellen, dass firewalld läuft (Benötigt für Azure Cloud Installation)

Die nachfolgende Befehle stellen sicher, dass firewalld läuft.

Translations Ignore

Code Block

language	bash
title	firewalld configuration

systemctl disable iptables
systemctl mask iptables
systemctl enable firewalld
systemctl start firewalld

User jtel erzeugen

Die nachfolgende Befehle erzeugen den Benutzer jtel, fügen ihn der Gruppe wheel zu und geben ihm das Passwort <password>:

Translations Ignore

Code Block

language	bash
title	jtel User

useradd -m jtel
gpasswd -a jtel wheel
printf '<password>\n<password>\n' | passwd jtel

SSH Schlüssel eintragen

Als nächstes werden die SSH-Schlüssel der jtel-Projekt-Techniker eingetragen, so dass ein gesichertes Login ohne separate Passworteingabe möglich wird. Standardmäßig existiert im Home-Verzeichnis von root weder das SSH-Konfigurationsverzeichnis noch die entsprechende Konfigurationsdatei. Dies alles wird mit den Befehlen im Nachfolgenden Code-Block erzeugt:

Translations Ignore

Code Block

language	bash
title	SSH Keys

mkdir -p /home/jtel/.ssh
cat << EOFF > /home/jtel/.ssh/authorized_keys
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAgJWox9vkWssx24V6m+VB/9cfFUznUnVJqHeSnQFcE+ANzH+lgv90jQYXRf8XLSaKA4HZGO7SFUwLz7eNHk0lIS+TG+WKGrjl3GRvzNoYVAapeKUV7HjbeagQPNOCKTr6G8Vi/GVMyOx8XhJAgpr5gjyW9GdMdqnOS9uxd83BCh/UiAP9oVUbLiIIxbtmLAzyfJdjnbFP9sJXw96Vl040Fe4aoLofrkPyPu7cst6TPJx5myDhORG31nD/2iwUNLfv58m9ABMsePfhqzSp/Hi2XY/e5gikDh3xUxoBmL9fWwbiFb92AFW08rP1CtoCEtOe2nJkdtRzt0GiE+A+zgdDjw== support@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuP5DEZDI6/CITTqk8qburqDuKNj6jnQ9Zbjz6BO+5P8MlrS8KT7y56u/PSqdO3OzD58D2JS0yNvM5RbBGYDUD1ng7VSJLFLfErbuCzJ/Q+BSRaee+7MhLWXdVSc/EY2B4qUcZGRL/NXHtAY/3KvSSU3wnhI4edLYMAzuxAhNEPRkmniq1CAuykDdHvm0kVQzaSShYDBQWIlbWIMG6jsCmMpZR7v+v6gKWeowQkM4T4XZ1f2K5zlQXd6FHGY8C/+XICefum2qgQtqgjfQMoqIQbnmfKDGIHPvkas287tdCbU4y1lTsJbTiT7INkd6QbiVUayVxVwwoV+G2F7WofN4nw== root@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEArTi8N08gDz1CvDriZNALa1tHky/1+QNP0WU43dI7hkn2zH7fz9bXAs32z7dRjfgxaYXWPmClcDLDb0xwjGfMXK0HABPtp0bxh/58Y0QowBUJkcNi6hUphT+ArGkpjQb5CJcArnbLO727R8jJFgE1QpiWdehd5t3ec0wOL0NhnIE63S+DUm7+bQW6Z8Kmzl0+opGyoURLf8hxeAIUJwdeMFN7AIVPZlyuPobowwjGDXD9YpwXZ2oPtg6XISwW/O1fsetzmGkgD4gedxJxjc5x5ByZX98UsNJORrG5R5slLqQTJkJzGBLpH8kC9WLIEW0RduVR2mrQzOBRgA92i5ZUFw== lewis.graham@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9W40vFohIPQsH6Q5Rfef7xiC4WRHOkMaMsUXxLCnTCDGI0PDib23NBUTevcnAc+OrCUITRmwngRbcItbR9QM1qNhzrwS8ZI00psZVVnBUwVVpX4UJtmX0CDrtVwH1yz51/WnZVeS17JqoMjVMB3p+n1CjViwh6qlRTI/9F/KfaOfiLEiHnvcnmSq67R7o5wP65TR00xqA20E569M1lcdn43xL2GylkwHuWw+XcusKqf+lnaawFWhdZUTOuF3ZB+ssuEbXSyZEGtc5/HNUG8rg9tutzAfq3fNWc5Y5pY+B048g4oDyAQpwMB7i9OwNNk1IEZA+rmqIImf7XLVKIsNn andrey.tsvetkov@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAkBiz9SsIXMO/a+7hCxNGQuQ4s/gqUZ6pyxDxjpDTD+bewxumyhn5aITbBSuHpx0n05JL4nGGdROii54ATildm3Uhi8JSljGy5uv97Sw8Kpy0eO314tOLU3NkAe2YOH1aUeArne4bYPebKBq0r1oln1Gu2+TFvCmMqu3FmleMv1xvw/waTwO57hSBPN83gOaJR7w6lOUp5HjYLSA0zRs1Os3g6ldQkHeGBknJ6jChqFXJHGl0KYzZGv3Q46fVTptS7NACxZs+ARUzJjbGjxnpHYK8rmSoTfoBS4qlN5+LxYKG341Hmq7cOsaISwUFbE/CbFOqUtjBviI1c7RLgtGnJQ== serge.djomo@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuh3ZLgQo2e9Uv1vAQxxCGxe9D3u8DWh4egeteUAPj4b7tOxQ6to3zAlGytUR9R6sANL/CIP3nEA2d3r4km0FQWQ4QFCLTFjyXl0Kvsn1ahN8DljJ6mRlwtvN2r5mBIEy1ClGCh+Jvchzf4ZhXrWxOTYYO77O8wjj9Zbk0Y6wI2qBnE6TaxsRQ7Z61zTe80xfLPQLKjgQ/5Hdk0z0HAx3jEsZRo9CqMLb44UD+6jVCih1JPMFcnUu0uxRQdOHrg243tqAUmuqICWompZNO75v3HjIIXOebxVGBXugrYc2xR1q964/EE0ZR7JMWM+HJ47V8WJKkE126n9ZElCqNGIR+Q== heidi.mueller@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAilON3Cn1bZPBYtv67Bv63llD1KMTTH52/ioPLm+qYYDV80mSHSb+PHD9awXNKNv5iTecaQ/a56CkK0z+KI5zvJb3EiRZaRe70cIqdflHmTcasVPVk1hAma5xc5UOCr+dKokqMQGwpDRrDvdS3atflQznvlR8+qoxPjlKC4KDx0GOUeSOIPBO6DdYGPlFX6ohMVRE7p/vHIRAOfehmG1xFtfk+rGPmgiblPWWWklKYQUfMnHI0pqFJwrPW46nqdUlQwtknATZC2cuKe931zstFhuDsm218yS4hTTlcjw5i/DH7PFr9Y58BtY6ZTy8khwTUeMPpSxE7i2WYoqoJ7DXcw== sou@jtel.de
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEA0czZLbpaxo/EY9iHDq9n6EWTALeYB7GVmp/mLwp66zeV4DbvTm+3FDUJSD9rqMJzJkAAEicFe+II/ZdIeZzG4JdYf66M/Y6k0w0Y8jJqDtsdgUf3OJ1hJ53Z+BwFqy1vD/a7N2hxlEKD2rzyAfVb+xzTzhJTjpX1kNiUxDMXRZs4ytW0CbOqZSpTJ3eT9NS9gH188KFTvHN8rPzDAxRKcexO2fSzNa7e+dYsfImOQoYlxFBX5YU74Ay9F5b7K95Cxe8EstvKNVmjkNWgnNWuS2d7eabepC1jv3z0FdOGiVoZ1SDgqKz8ysBa6Rzkt5L5peHYAKyH8TedeUk7kRIwZQ== dhia@jtel.de
EOFF
restorecon -R -v /home/jtel/.ssh
chown -R jtel:jtel /home/jtel/.ssh
chmod 0700 /home/jtel/.ssh
chmod 0644 /home/jtel/.ssh/authorized_keys

Hinweis: alle anderen SSH keys nicht mehr verwenden.

Damit diese auch korrekt funktionieren, müssen die SELINUX-Security-Labels korrekt angepasst werden. Dies erledigt der Befehl am Ende des Code-Blocks.

History Funktion verbessern

Der Nachfolgende Befehl generiert eine Konfigurationsdatei zur Verbesserung der History-Funktion der Shell:

Translations Ignore

Code Block

language	bash
title	History Function

cat <<EOFF > ~/.inputrc
"\e[A": history-search-backward
"\e[B": history-search-forward
set show-all-if-ambiguous on
set completion-ignore-case on
EOFF

Screen Multiplexer verbessern

Der Nachfolgende Befehl verbessert die Darstellung des screen-Multiplexers.

Translations Ignore

Code Block

language	bash
title	Screen Multiplexer

cat <<EOFF >> /etc/screenrc
# JTEL:Added
startup_message off
vbell off
hardstatus alwayslastline "%{kw} %{b}%H%{K}    < %-w%{Wb} %n %t %{-}%+w >"
# This lets work all functions keys in midnight commander
# termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~'
EOFF

Wheel (sudo) Konfiguration

Der Nachfolgende Befehl erzeugt eine Konfigurationskomponente, um den Benutzern der Gruppe wheel das Recht zu geben, Befehle als root mittels des Tools sudo auszuführen:

Translations Ignore

Code Block

language	bash
title	Sudo Authorisation

cat <<EOFF > /etc/sudoers.d/wheelers
## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL
EOFF

Shell Konfiguration auf jtel übertragen

Die nachfolgende Befehle replizieren die Shell-Konfiguration vom Benutzer root in den Benutzer jtel:

Translations Ignore

Code Block

language	bash
title	Configuration jtel User

cp -a /root/.inputrc /home/jtel
chown -R jtel:jtel /home/jtel/.inputrc

Root hinweis für GIT

Die nachfolgende Befehle machen das Ausführen von GIT als root schwieriger, da dies immer im Kontext vom jtel user geschehen soll:

Translations Ignore

Code Block

language	bash
title	root Warning for GIT

cat <<EOFF >> ~/.bashrc
alias git='printf "It looks like you are trying to run GIT as ROOT.\nFor jtel installations, GIT should always be run from the jtel user.\nIf you really want to run git as root, you will need to access it directly, using /usr/bin/git for example.\n"'
EOFF
source ~/.bashrc

SSH Keys auf root übertragen

Die nachfolgende Befehle replizieren die SSH Keys vom Benutzer jtel in den Benutzer root:

Translations Ignore

Code Block

language	bash
title	Configuration jtel User

cp -a /home/jtel/.ssh /root
chown -R root:root /root/.ssh

NTP auf PTB einstellen

Die nachfolgende Befehle tragen die offiziellen Zeitserver der Physikalisch-Technischen-Bundesanstalt in die Konfigurationsdatei des Zeitsynchonisationsdienstes ein, konfigurieren den Dienst so, dass er automatisch startet, synchronisieren die Zeit einmalig mit einem der PTB-Server und starten den Dienst.

Translations Ignore

Code Block

language	bash
title	Time Synchronisation

sed -i -e "s/^server 0.centos.pool.ntp.org iburst$/server ptbtime1.ptb.de iburst\nserver ptbtime2.ptb.de iburst\nserver ptbtime3.ptb.de iburst\nserver 0.centos.pool.ntp.org iburst/" /etc/ntp.conf
chkconfig ntpd on
ntpdate ptbtime2.ptb.de
service ntpd start

NTP Prüfen

Siehe hier:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s1-Checking_the_Status_of_NTP.html

für eine Erklärung.

Translations Ignore

Code Block

language	bash
title	Check Time Synchronisation

ntpq -p

Deinstallation anacron, Installation cron

Da der anacron Dienst stehen bleibt, wenn einer der Wartungsskripte nicht durchläuft, wird dieser deinstalliert, und der cron dienst installiert:

Translations Ignore

Code Block

language	bash
title	Uninstall anacron, Install cron

sudo yum -y install cronie-noanacron
sudo yum -y remove cronie-anacron

VMWare / Hyper-V / Virtualisierungs-Tools (NICHT BEI AZURE)

VMWare Tools installieren

Translations Ignore

Code Block

language	bash
title	Install VMWare Tools´

yum -y install open-vm-tools

Hyper-V

Translations Ignore

Code Block

language	bash
title	Install Hyper-V Tools

yum -y install hyperv-daemons

Andere Virtualisierungsumgebungen

Den jeweiligen Hersteller kontaktieren.

Proxy Server Eintrag

Falls ein Proxyserver verwendet wird, dann folgende Befehle nutzen um dies für root und den jtel user einzurichten - die oberen Zeilen bitte anpassen:

Translations Ignore

Code Block

language	bash
title	Configure Proxy Server

 
PROXY_USERNAME=
PROXY_PASSWORD=
PROXY_SERVER=proxy.example.de
PROXY_PORT=3128
PROXY_EXCEPTIONS=.example.de,.local,10.200.21.

if [ -n "$PROXY_USERNAME" ] && [ -n "$PROXY_PASSWORD" ] 
then
	PROXY="http://$USERNAME:$PASSWORD@$PROXY_SERVER:$PROXY_PORT"
elif [ -n "$PROXY_USERNAME" ] 
then
	PROXY="http://$USERNAME@$PROXY_SERVER:$PROXY_PORT"
else
	PROXY="http://$PROXY_SERVER:$PROXY_PORT"
fi

cat <<EOFF >> ~/.bashrc
export ALL_PROXY=$PROXY
export HTTP_PROXY=$PROXY
export HTTPS_PROXY=$PROXY
export FTP_PROXY=$PROXY
export RSYNC_PROXY=$PROXY
export http_proxy=$PROXY
export https_proxy=$PROXY
export ftp_proxy=$PROXY
export rsync_proxy=$PROXY
export NO_PROXY=$PROXY_EXCEPTIONS
EOFF

cat <<EOFF >> /home/jtel/.bashrc
export ALL_PROXY=$PROXY
export HTTP_PROXY=$PROXY
export HTTPS_PROXY=$PROXY
export FTP_PROXY=$PROXY
export RSYNC_PROXY=$PROXY
export http_proxy=$PROXY
export https_proxy=$PROXY
export ftp_proxy=$PROXY
export rsync_proxy=$PROXY
export NO_PROXY=$PROXY_EXCEPTIONS
EOFF

source ~/.bashrc

Sicherstellen der Namensauflösung

Die Datei /etc/hosts editieren, und die entsprechenden Namen der verschiednen Rechner für die Lösung eintragen:

Translations Ignore

Code Block

language	bash
title	/etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6


192.168.1.10	acd-lb		acd-lb.example.com
192.168.1.10	acd-store	acd-store.example.com
192.168.1.21	acd-dbm		acd-dbm.example.com
192.168.1.22	acd-dbs		acd-dbs.example.com
192.168.1.22	acd-dbr		acd-dbr.example.com
192.168.1.31	acd-jb1		acd-jb1.example.com
192.168.1.32	acd-jb2		acd-jb2.example.com
192.168.1.40	acd-tel1	acd-tel1.example.com

Sv translation

language	fr

Cloud Azure

Pour le nuage d'azur, vous spécifiez un utilisateur lors de l'installation de base. Le mot de passe root reste caché. Cependant, vous pouvez passer en root avec la commande suivante, la saisie de votre propre mot de passe est nécessaire :

Translations Ignore

Code Block

language	bash
title	sudo dans Azure Cloud

sudo -s

En outre, il est nécessaire d'affecter la ou les cartes réseau à une zone. Cela se fait en modifiant la configuration du réseau :

Translations Ignore

Code Block

language	bash
title	Paramètres du réseau Cloud Azure

vi /etc/sysconfig/network-scripts/ifcfg-eth0   ... (add at end)   ZONE=public   ...   service network restart

Mise à jour système

Mise à jour du système et installation des premiers paquets

Translations Ignore

Code Block

language	bash
title	Mise à jour et installation

yum -y update yum -y install nano unzip ntp ntpdate wget man openssh-clients rsync screen sysstat nfs-utils cifs-utils policycoreutils-python yum-plugin-versionlock yum-utils nmap bind-utils tcpdump lsof tmux tmpwatch yum -y install https://repo.ius.io/ius-release-el7. rpm yum -y install epel-release # LAG : NO LONGER NE BESOIN # Supprimé le 17.09.2018 après les réactions de FK # yum -y install http://mirror1.hs-esslingen.de/repoforge/redhat/el7/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm # yum-config-manager --enable rpmforge-extras

Reboot

Translations Ignore

Code Block

language	bash
title	Reboot

reboot

désactiver l'IPv6

Warning

title	ipv6

Si la mise à jour de yum échoue à cause de l'IPv6, l'ipv6 peut être désactivé.

Translations Ignore

Code Block

title	Désactiver l'IPv6

vi /etc/sysctl.d/disable-ipv6.conf # Ajouter les lignes suivantes net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 # Puis lancer la commande suivante sysctl -p # Puis éditer yum.conf vi /etc/yum.conf # Ajouter la ligne suivante ip_resolve=4 # Puis redémarrer

Configuration de base

Assurez-vous que le firewalld fonctionne (Requis pour l'installation de Azure Cloud)

Les commandes suivantes permettent de s'assurer que le firewalld fonctionne.

Translations Ignore

Code Block

language	bash
title	configuration du firewalld

systemctl disable iptables systemctl mask iptables systemctl enable firewalld systemctl start firewalld

Créer un utilisateur jtel

Les commandes suivantes permettent de créer l'utilisateur jtel, l'ajouter au groupe wheel et lui donner le mot de passe <password>:

Translations Ignore

Code Block

language	bash
title	utilisateur jtel

useradd -m jtel gpasswd -a jtel wheel printf '<password>\n<password>\n' | passwd jtel

Entrez la clé SSH

Ensuite, les clés SSH des techniciens du projet jtel sont saisies de manière à ce qu'une connexion sécurisée soit possible sans saisie séparée du mot de passe. Par défaut, ni le répertoire de configuration SSH ni le fichier de configuration correspondant n'existent dans répertoire d'accueil root. Tout cela est généré avec les commandes du bloc de code suivant :

Translations Ignore

Code Block

language	bash
title	Clés SSH

mkdir -p /home/jtel/.ssh cat << EOFF > /home/jtel/.ssh/authorized_keys ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAgJWox9vkWssx24V6m+VB/9cfFUznUnVJqHeSnQFcE+ANzH+lgv90jQYXRf8XLSaKA4HZGO7SFUwLz7eNHk0lIS+TG+WKGrjl3GRvzNoYVAapeKUV7HjbeagQPNOCKTr6G8Vi/GVMyOx8XhJAgpr5gjyW9GdMdqnOS9uxd83BCh/UiAP9oVUbLiIIxbtmLAzyfJdjnbFP9sJXw96Vl040Fe4aoLofrkPyPu7cst6TPJx5myDhORG31nD/2iwUNLfv58m9ABMsePfhqzSp/Hi2XY/e5gikDh3xUxoBmL9fWwbiFb92AFW08rP1CtoCEtOe2nJkdtRzt0GiE+A+zgdDjw== support@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuP5DEZDI6/CITTqk8qburqDuKNj6jnQ9Zbjz6BO+5P8MlrS8KT7y56u/PSqdO3OzD58D2JS0yNvM5RbBGYDUD1ng7VSJLFLfErbuCzJ/Q+BSRaee+7MhLWXdVSc/EY2B4qUcZGRL/NXHtAY/3KvSSU3wnhI4edLYMAzuxAhNEPRkmniq1CAuykDdHvm0kVQzaSShYDBQWIlbWIMG6jsCmMpZR7v+v6gKWeowQkM4T4XZ1f2K5zlQXd6FHGY8C/+XICefum2qgQtqgjfQMoqIQbnmfKDGIHPvkas287tdCbU4y1lTsJbTiT7INkd6QbiVUayVxVwwoV+G2F7WofN4nw== root@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEArTi8N08gDz1CvDriZNALa1tHky/1+QNP0WU43dI7hkn2zH7fz9bXAs32z7dRjfgxaYXWPmClcDLDb0xwjGfMXK0HABPtp0bxh/58Y0QowBUJkcNi6hUphT+ArGkpjQb5CJcArnbLO727R8jJFgE1QpiWdehd5t3ec0wOL0NhnIE63S+DUm7+bQW6Z8Kmzl0+opGyoURLf8hxeAIUJwdeMFN7AIVPZlyuPobowwjGDXD9YpwXZ2oPtg6XISwW/O1fsetzmGkgD4gedxJxjc5x5ByZX98UsNJORrG5R5slLqQTJkJzGBLpH8kC9WLIEW0RduVR2mrQzOBRgA92i5ZUFw== lewis.graham@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9W40vFohIPQsH6Q5Rfef7xiC4WRHOkMaMsUXxLCnTCDGI0PDib23NBUTevcnAc+OrCUITRmwngRbcItbR9QM1qNhzrwS8ZI00psZVVnBUwVVpX4UJtmX0CDrtVwH1yz51/WnZVeS17JqoMjVMB3p+n1CjViwh6qlRTI/9F/KfaOfiLEiHnvcnmSq67R7o5wP65TR00xqA20E569M1lcdn43xL2GylkwHuWw+XcusKqf+lnaawFWhdZUTOuF3ZB+ssuEbXSyZEGtc5/HNUG8rg9tutzAfq3fNWc5Y5pY+B048g4oDyAQpwMB7i9OwNNk1IEZA+rmqIImf7XLVKIsNn andrey.tsvetkov@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAkBiz9SsIXMO/a+7hCxNGQuQ4s/gqUZ6pyxDxjpDTD+bewxumyhn5aITbBSuHpx0n05JL4nGGdROii54ATildm3Uhi8JSljGy5uv97Sw8Kpy0eO314tOLU3NkAe2YOH1aUeArne4bYPebKBq0r1oln1Gu2+TFvCmMqu3FmleMv1xvw/waTwO57hSBPN83gOaJR7w6lOUp5HjYLSA0zRs1Os3g6ldQkHeGBknJ6jChqFXJHGl0KYzZGv3Q46fVTptS7NACxZs+ARUzJjbGjxnpHYK8rmSoTfoBS4qlN5+LxYKG341Hmq7cOsaISwUFbE/CbFOqUtjBviI1c7RLgtGnJQ== serge.djomo@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAuh3ZLgQo2e9Uv1vAQxxCGxe9D3u8DWh4egeteUAPj4b7tOxQ6to3zAlGytUR9R6sANL/CIP3nEA2d3r4km0FQWQ4QFCLTFjyXl0Kvsn1ahN8DljJ6mRlwtvN2r5mBIEy1ClGCh+Jvchzf4ZhXrWxOTYYO77O8wjj9Zbk0Y6wI2qBnE6TaxsRQ7Z61zTe80xfLPQLKjgQ/5Hdk0z0HAx3jEsZRo9CqMLb44UD+6jVCih1JPMFcnUu0uxRQdOHrg243tqAUmuqICWompZNO75v3HjIIXOebxVGBXugrYc2xR1q964/EE0ZR7JMWM+HJ47V8WJKkE126n9ZElCqNGIR+Q== heidi.mueller@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAilON3Cn1bZPBYtv67Bv63llD1KMTTH52/ioPLm+qYYDV80mSHSb+PHD9awXNKNv5iTecaQ/a56CkK0z+KI5zvJb3EiRZaRe70cIqdflHmTcasVPVk1hAma5xc5UOCr+dKokqMQGwpDRrDvdS3atflQznvlR8+qoxPjlKC4KDx0GOUeSOIPBO6DdYGPlFX6ohMVRE7p/vHIRAOfehmG1xFtfk+rGPmgiblPWWWklKYQUfMnHI0pqFJwrPW46nqdUlQwtknATZC2cuKe931zstFhuDsm218yS4hTTlcjw5i/DH7PFr9Y58BtY6ZTy8khwTUeMPpSxE7i2WYoqoJ7DXcw== sou@jtel.de ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEA0czZLbpaxo/EY9iHDq9n6EWTALeYB7GVmp/mLwp66zeV4DbvTm+3FDUJSD9rqMJzJkAAEicFe+II/ZdIeZzG4JdYf66M/Y6k0w0Y8jJqDtsdgUf3OJ1hJ53Z+BwFqy1vD/a7N2hxlEKD2rzyAfVb+xzTzhJTjpX1kNiUxDMXRZs4ytW0CbOqZSpTJ3eT9NS9gH188KFTvHN8rPzDAxRKcexO2fSzNa7e+dYsfImOQoYlxFBX5YU74Ay9F5b7K95Cxe8EstvKNVmjkNWgnNWuS2d7eabepC1jv3z0FdOGiVoZ1SDgqKz8ysBa6Rzkt5L5peHYAKyH8TedeUk7kRIwZQ== dhia@jtel.de EOFF restorecon -R -v /home/jtel/.ssh chown -R jtel:jtel /home/jtel/.ssh chmod 0700 /home/jtel/.ssh chmod 0644 /home/jtel/.ssh/authorized_keys

Note : n'utilisez pas toutes les autres clés SSH.

Pour qu'elles fonctionnent correctement, les étiquettes de sécurité SELINUX doivent être adaptées correctement. Cela se fait par la commande à la fin du bloc de code.

Improve la fonction historique

La commande suivante génère un fichier de configuration pour améliorer la fonction d'historique du shell :

Translations Ignore

Code Block

language	bash
title	Fonction Historique

cat <<EOFF > ~/.inputrc "\e[A": history-search-backward "\e[B": history-search-forward set show-all-if-ambiguous on set completion-ignore-case on EOFF

Améliorer le multiplexeur d'écran

La commande suivante permet d'améliorer l'affichage du multiplexeur d'écran.

Translations Ignore

Code Block

language	bash
title	Multiplexeur d'écran

cat <<EOFF >> /etc/screenrc # JTEL:Added startup_message off vbell off hardstatus alwayslastline "%{kw} %{b}%H%{K} < %-w%{Wb} %n %t %{-}%+w >" # This lets work all functions keys in midnight commander # termcapinfo xterm 'k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~' EOFF

Configuration Wheel (sudo)

La commande suivante crée un composant de configuration pour donner aux utilisateurs du wheel le droit d'exécuter des commandes en tant que root en utilisant l'outil sudo:

Translations Ignore

Code Block

language	bash
title	Autorisation Sudo

cat <<EOFF > /etc/sudoers.d/wheelers ## Allows people in group wheel to run all commands %wheel ALL=(ALL) ALL EOFF

Transférer la configuration du shell vers jtel

Les commandes suivantes reproduisent la configuration du shell à partir de l'utilisateur root à l'utilisateur jtel:

Translations Ignore

Code Block

language	bash
title	Configuration Utilisateur jtel

cp -a /root/.inputrc /home/jtel chown -R jtel:jtel /home/jtel/.inputrc

Indice Root pout GIT

Les commandes suivantes rendent plus difficile l'exécution de GIT en tant que root, puisque cela doit toujours être fait dans le contexte de l'utilisateur jtel :

Translations Ignore

Code Block

language	bash
title	avertissement Root pour GIT

cat <<EOFF >> ~/.bashrc alias git='printf "Il semble que vous essayez d'exécuter GIT en tant que ROOT.\nPour les installations jtel, GIT devrait toujours être exécuté par l'utilisateur jtel.\nSi vous voulez vraiment exécuter git en tant que root, vous devrez y accéder directement, en utilisant /usr/bin/git par exemple.\n"' EOFF source ~/.bashrc

Transférer les clés SSH au root

Les commandes suivantes reproduisent les clés SSH de l'utilisateur jtel à l'utilisateur root:

Translations Ignore

Code Block

language	bash
title	Configuration Utilisateur jtel

cp -a /home/jtel/.ssh /root chown -R root:root /root/.ssh

Mettre NTP à PTB

Les commandes suivantes permettent d'entrer les serveurs de temps officiels de la Physikalisch-Technische Bundesanstalt dans le fichier de configuration du service de synchronisation du temps, de configurer le service pour qu'il démarre automatiquement, de synchroniser le temps une fois avec l'un des serveurs PTB et de démarrer le service

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Code Block

language	bash
title	Synchronisation du temps

sed -i -e "s/^server 0.centos.pool.ntp.org iburst$/server ptbtime1.ptb.de iburst\nserver ptbtime2.ptb.de iburst\nserver ptbtime3.ptb.de iburst\nserver 0.centos.pool.ntp.org iburst/" /etc/ntp.conf chkconfig ntpd on ntpdate ptbtime2.ptb.de service ntpd start

Vérifier le NTP

Voir ici:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s1-Checking_the_Status_of_NTP.html

pour une explication

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Code Block

language	bash
title	Vérifier la synchronisation du temps

ntpq -p

Désinstallation de l'anacron, installation du cron

Comme le service anacron s'arrête si l'un des scripts de maintenance ne fonctionne pas, il est désinstallé et le service cron est installé :

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Code Block

language	bash
title	Désinstaller anacron, Installer cron

sudo yum -y install cronie-noanacron sudo yum -y remove cronie-anacron

VMWare / Hyper-V / Virtualization Tools (NOT AZURE)

Installer les outils VMWare

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Code Block

language	bash
title	Installer les outils VMWare

yum -y install open-vm-tools

Hyper-V

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Code Block

language	bash
title	Installer les outils Hyper-V

yum -y install hyperv-daemons

Autres environnements de virtualisation

Contactez le fabricant concerné.

Entrée du serveur proxy

Si un serveur proxy est utilisé, utilisez les commandes suivantes pour le configurer root et l'utilisateur jtel - veuillez ajuster les lignes supérieures :

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Code Block

language	bash
title	Configurer le serveur proxy

  PROXY_USERNAME= PROXY_PASSWORD= PROXY_SERVER=proxy.example.de PROXY_PORT=3128 PROXY_EXCEPTIONS=.example.de,.local,10.200.21. if [ -n "$PROXY_USERNAME" ] && [ -n "$PROXY_PASSWORD" ] then PROXY="http://$USERNAME:$PASSWORD@$PROXY_SERVER:$PROXY_PORT" elif [ -n "$PROXY_USERNAME" ] then PROXY="http://$USERNAME@$PROXY_SERVER:$PROXY_PORT" else PROXY="http://$PROXY_SERVER:$PROXY_PORT" fi cat <<EOFF >> ~/.bashrc export ALL_PROXY=$PROXY export HTTP_PROXY=$PROXY export HTTPS_PROXY=$PROXY export FTP_PROXY=$PROXY export RSYNC_PROXY=$PROXY export http_proxy=$PROXY export https_proxy=$PROXY export ftp_proxy=$PROXY export rsync_proxy=$PROXY export NO_PROXY=$PROXY_EXCEPTIONS EOFF cat <<EOFF >> /home/jtel/.bashrc export ALL_PROXY=$PROXY export HTTP_PROXY=$PROXY export HTTPS_PROXY=$PROXY export FTP_PROXY=$PROXY export RSYNC_PROXY=$PROXY export http_proxy=$PROXY export https_proxy=$PROXY export ftp_proxy=$PROXY export rsync_proxy=$PROXY export NO_PROXY=$PROXY_EXCEPTIONS EOFF source ~/.bashrc

Garantir la résolution des noms

Modifiez le fichier /etc/hosts, et entrez les noms des différentes machines pour la solution :

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Code Block

language	bash
title	/etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.10 acd-lb acd-lb.example.com 192.168.1.10 acd-store acd-store.example.com 192.168.1.21 acd-dbm acd-dbm.example.com 192.168.1.22 acd-dbs acd-dbs.example.com 192.168.1.22 acd-dbr acd-dbr.example.com 192.168.1.31 acd-jb1 acd-jb1.example.com 192.168.1.32 acd-jb2 acd-jb2.example.com 192.168.1.40 acd-tel1 acd-tel1.example.com

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Versions Compared

Old Version 67

New Version Current

Key

Azure Cloud

System update

disable ipv6

Basic configuration

Other virtualization environments

Proxy Server Entry

Azure Cloud

System Update

ipv6 Disabeln

Grundkonfiguration

Andere Virtualisierungsumgebungen

Proxy Server Eintrag

Cloud Azure

Mise à jour système

désactiver l'IPv6

Configuration de base

Autres environnements de virtualisation

Entrée du serveur proxy