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opabravo/vps_secure_cheatsheet.md

Last active May 13, 2022 16:36
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Cheatsheet to secure personal vps
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vps_secure_cheatsheet.md

Disable ICMP (Not a good practice though)

echo 'net.ipv4.icmp_echo_ignore_all = 1' >> /etc/sysctl.conf && sysctl -p

Setup Fail2ban、Snort

Use iptables、iptables-save、ufw

Use Logwatch

Use htop

Check netstat

netstat -ltnp

Check login sessions

w
last -Faiwx | tail -n 30
lastlog
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