Difference between revisions of "Server Administration"

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=== SYSTEM LOGS ===
 
<syntaxhighlight>
 
<syntaxhighlight>
 
du -csh /var/log/*
 
du -csh /var/log/*
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vm.swappiness=80
 
vm.swappiness=80
 
# restart server
 
# restart server
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 +
grep processor /proc/cpuinfo | wc -l
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nano /etc/nginx/nginx.conf
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ulimit -n
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# CREATE 4GB SWAP FILE
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sudo dd if=/dev/zero of=/swapfile bs=128M count=32
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sudo chmod 600 /swapfile
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sudo mkswap /swapfile
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sudo swapon /swapfile
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sudo swapon -s
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sudo vi /etc/fstab
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    /swapfile swap swap defaults 0 0
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 +
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nano /etc/sysctl.conf
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free -h
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sudo swapon --all --verbose
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df -h
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</Syntaxhighlight>
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===EXTEND AWS LINUX FILE SYSTEM===
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<syntaxhighlight>
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df -hT
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sudo lsblk
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sudo growpart /dev/nvme0n1 1
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sudo lsblk
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df -hT
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sudo xfs_growfs -d /
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df -hT
 
</Syntaxhighlight>
 
</Syntaxhighlight>

Latest revision as of 21:56, 1 May 2024

SYSTEM LOGS

du -csh /var/log/*
journalctl --disk-usage
sudo journalctl --vacuum-size=100M
nano /etc/systemd/journald.conf
service systemd-journald restart

SWAPPINESS

nano /etc/sysctl.conf 
vm.overcommit_memory=1
vm.swappiness=80
# restart server

grep processor /proc/cpuinfo | wc -l
nano /etc/nginx/nginx.conf
ulimit -n

# CREATE 4GB SWAP FILE
sudo dd if=/dev/zero of=/swapfile bs=128M count=32
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon -s
sudo vi /etc/fstab
     /swapfile swap swap defaults 0 0


nano /etc/sysctl.conf 
free -h
sudo swapon --all --verbose
df -h

EXTEND AWS LINUX FILE SYSTEM

df -hT
sudo lsblk
sudo growpart /dev/nvme0n1 1
sudo lsblk
df -hT
sudo xfs_growfs -d /
df -hT