Table des matières
0 billet(s) pour février 2026
Install de Munin sur RedHat /CentOS
Source : http://tecadmin.net/installing-munin-in-centos-rhel-and-fedora/
Install
yum install epel-release yum --enablerepo=epel install munin munin-node rrdtool
Changement binding sur localhost (inutile d'écouter sur les cartes réseaux, car on communique en localhost)
sed -i -e 's/^host \*/host 127.0.0.1/' /etc/munin/munin-node.conf
Création MDP
htpasswd -cm /etc/munin/munin-htpasswd muninadmin
Nous ajoutons dans le fichier /etc/httpd/conf.d/munin.conf la ligne suivante :
/etc/httpd/conf.d/munin.conf
Alias /munin /var/www/html/munin
Sur ma conf j'ai dû aussi ajouter un DirectoryIndex index.html
Normalement ça devrait ressembler à :
/etc/httpd/conf.d/munin.conf
# This file can be used as a .htaccess file, or a part of your apache # config file. # # For the .htaccess file option to work the munin www directory # (/var/www/html/munin) must have "AllowOverride all" or something close # to that set. # # As a config file enclose it in <directory> like so: # <directory /var/www/html/munin> AuthUserFile /etc/munin/munin-htpasswd AuthName "Munin" AuthType Basic require valid-user # This next part requires mod_expires to be enabled. # # We could use <IfModule mod_expires> around here, but I want it to be # as evident as possible that you either have to load mod_expires _or_ # you coment out/remove these lines. # Set the default expiery time for files 5 minutes 10 seconds from # their creation (modification) time. There are probably new files by # that time. ExpiresActive On ExpiresDefault M310 # Ajout DirectoryIndex index.html </directory> ScriptAlias /munin-cgi/munin-cgi-graph /var/www/cgi-bin/munin-cgi-graph <Location /munin-cgi/munin-cgi-graph> AuthUserFile /etc/munin/munin-htpasswd AuthName "Munin" AuthType Basic require valid-user </Location> # Ajout Alias /munin /var/www/html/munin
systemctl enable munin-node
systemctl start munin-node
En vérifie que la conf est ok
apachectl -t
Si ok
systemctl reload httpd
NB, les graphes sont générés grâce à la cron /etc/cron.d/munin
Notes brouillon
CentOS6
MySQL
ln -s /usr/share/munin/plugins/mysql_* /etc/munin/plugins/ service munin-node restart
/etc/munin/plugin-conf.d/munin-node
[diskstats] user munin [iostat_ios] user munin [mysql*] user root env.mysqlopts --defaults-extra-file=/var/lib/munin/.my.cnf
/var/lib/munin/.my.cnf
[mysqldump] user=root password=P@ssw0rd [mysql] user=root password=P@ssw0rd [mysqladmin] user=root password=P@ssw0rd [mysqlshow] user=root password=P@ssw0rd
chown munin:munin /var/lib/munin/.my.cnf chmod 600 /var/lib/munin/.my.cnf service munin-node restart
Apache
/etc/httpd/conf/httpd.conf
LoadModule status_module modules/mod_status.so ExtendedStatus On <Location /server-status> SetHandler server-status Order deny,allow Deny from all Allow from 127.0.0.1 ::1 </Location>
service httpd restart
ln -s /usr/share/munin/plugins/apache_* /etc/munin/plugins/ service munin-node restart
Pb MySQL bug : mysql innodb free tablespace
Voir :
Test
su - munin -s /bin/bash cd /etc/munin/plugins ./mysql_innodb
Erreur
./mysql_innodb: Error: No visible tables use InnoDB free.value U
Désactiver la sonde
unlink /etc/munin/plugins/mysql_innodb service munin-node restart
Installer LibreOffice sur MacOSX 10.6.8
La bonne version, c'est la dernière 4.3.3 (aujourd'hui la 4.3.3.2) :
Après il ne semble plus exister de version 32bits pour Mac.
En cas de doute, sur le fait que c'est version n'est pas obsolète (niveau sécurité) il est raisonnable de prendre la même version de LibreOffice qu'une Debian Stable.
Ansible Ping ICMP
Voir aussi Test ping et win_ping cibles Ansible rapport CSV
M(net_ping) semble être pour les composants réseaux tel que des routers. Il est vrai que dans la mesure du possible il vaut mieux n’utiliser les modules M(command), M(shell) etc… que par parcimonie mais dans la cas présent, si c’est pour pinguer un serveur depuis l’Execution Node ou depuis un serveur Linux cela semble approprié. Voici un exemple :
- hosts: all gather_facts: False tasks: - name: ping command: ping -c 1 -w 2 192.168.2.10 ignore_errors: true changed_when: false check_mode: false
PS : le module M(wait_for) peut dans certains cas faire l’affaire (ping de port TCP)
Install GNU/Linux sur Acer Aspire ES1-531-P1UK
http://acer--uk.custhelp.com/app/answers/detail/a_id/27071/~/how-to-enable-or-disable-secure-boot
Completely shut down your computer.
Power on the system. As soon as the first logo screen appears, immediately press F2 to enter the BIOS.
Use the right arrow key to select Security.
Use the down arrow key to highlight Set Supervisor Password and press Enter.
Create a password and press Enter. Retype the password to confirm and press Enter again.
Use the right arrow key to select Boot.
Press the down arrow key to select Secure Boot and press Enter.
With the arrow key, highlight Disabled and press Enter.
Press the F10 key and select Yes to save the changes and exit the BIOS.
Merci à celui qui a fait cette vidéo :)
Install drivers graphique propriétaire Nvidia CUDA
glxinfo
glxinfo
Les lignes intéressantes du glxinfo sont: direct rendering: Yes OpenGL vendor string: nouveau
Install Drivers + CUDA8 sur Debian Jessie (Debian 8)
Install des dépendances
apt-get update apt-get install build-essential binutils g++ mpich2 libxmu-dev libxi-dev linux-headers-$(uname -r)
Install de Cuda
cp *.run /root/ cd /root/ ./cuda_8.0.44_linux.run
export PATH=$PATH:/usr/local/cuda/bin/ echo "export PATH=$PATH:/usr/local/cuda/bin" >> ~/.bashrc #export LD_LIBRARY_PATH=/usr/local/cuda/lib64/:$LD_LIBRARY_PATH echo "/usr/local/cuda/lib64" > /etc/ld.so.conf.d/cuda.conf ldconfig
Redémarrage, car le drivers Libre est encore chargé
lsmod |grep nouveau reboot
Le driver Libre nouveau n'est plus chargé
lsmod |grep nouveau
Grâce à /etc/modprobe.d/nvidia-installer-disable-nouveau.conf
/etc/modprobe.d/nvidia-installer-disable-nouveau.conf
# generated by nvidia-installer blacklist nouveau options nouveau modeset=0
sudo update-initramfs -u
Install des derniers drivers
systemctl stop gdm ./NVIDIA-Linux-x86_64-375.20.run
On redémarre
reboot
Install de Cuda Docker
l faut désinstaller tous les paquets Debian cuda et nvidia :
#apt-get purge $(dpkg -l |egrep 'cuda|nvidia' |grep ^ii |awk '{print $2}') apt purge 'nvidia-*'
Install de CUDA
./cuda_9.2.88_396.26_linux.run ./cuda_9.2.88.1_linux.run # Patch nvidia
echo 'export PATH=$PATH:/usr/local/cuda/bin' |sudo tee /etc/profile.d/cuda.sh echo "/usr/local/cuda/lib64" |sudo tee /etc/ld.so.conf.d/cuda.conf sudo ldconfig
/etc/apt/sources.list.d/nvidia-docker.list
deb https://nvidia.github.io/libnvidia-container/debian9/$(ARCH) / deb https://nvidia.github.io/nvidia-container-runtime/debian9/$(ARCH) / deb https://nvidia.github.io/nvidia-docker/debian9/$(ARCH) /
Installer nvidia-docker2
sudo apt-get update sudo apt-get install nvidia-docker2
nvidia-docker run -it -p 8888:8888 tensorflow/tensorflow:latest-gpu
Vérif
On vérif que le driver en chargé
lsmod |grep nvidia
nvidia-smi && echo OK nvidia-smi topo -m nvcc --version
sudo apt-get install clinfo clinfo
sudo apt-get install pyrit pyrit list_cores
cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 375.20 Tue Nov 15 16:49:10 PST 2016 GCC version: gcc version 4.9.2 (Debian 4.9.2-10)
En root
cd /usr/local/cuda/samples/1_Utilities/deviceQuery make ./deviceQuery
cd /usr/local/cuda/samples/1_Utilities/bandwidthTest make /usr/local/cuda/samples/bin/x86_64/linux/release/bandwidthTest
cudnn
Install
Voir :
Unzip the cuDNN package.
tar -xzvf cudnn-10.2-linux-x64-v7.6.5.32.tgz
Copy the following files into the CUDA Toolkit directory, and change the file permissions.
sudo cp cuda/include/cudnn.h /usr/local/cuda/include sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64 sudo chmod a+r /usr/local/cuda/include/cudnn.h /usr/local/cuda/lib64/libcudnn*
Needed ?
sudo apt-get install libcupti-dev
ou
# the runtime library sudo dpkg -i libcudnn7_7.0.5.15–1+cuda9.0_amd64.deb # the developer library sudo dpkg -i libcudnn7-dev_7.0.5.15–1+cuda9.0_amd64.deb # the code samples sudo dpkg -i libcudnn7-doc_7.0.5.15–1+cuda9.0_amd64.deb
Autres
~/.bashrc
# put the following line in the end or your .bashrc file export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda/extras/CUPTI/lib64"
sudo ldconfig
Test
Voir : http://www.robot.t.u-tokyo.ac.jp/~miyagusuku/deeplearning,/install/2018/10/01/dlbox_install.html
cp -r /usr/src/cudnn_samples_v7/ ~ cd ~/cudnn_samples_v7/mnistCUDNN make clean && make ./mnistCUDNN
Autres
cd /usr/local/cuda/samples/5_Simulations/nbody make GLPATH=/usr/lib make GLPATH=/usr/lib/x86_64-linux-gnu make ./nbody -benchmark -numbodies=256000 -device=0 apt-get install gcc g++ gcc-4.8 g++-4.8 gcc-4.9 g++-4.9 libxi6 libxi-dev libglu1-mesa libglu1-mesa-dev libxmu6 linux-headers-amd64 linux-source freeglut3-dev
Voir https://andrewbolster.info/2016/04/fixcuda-on-debian-jessie