Tips Linux

Linux, DevOps and Security

Tag: security

Root password Linux reset in 1 minute

This little trick recently saved me from a critical situation and shows one more time the weakness of every system with unencrypted disks.

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IP extraction

Regex are useful to cope with basic unix / linux administration tasks.
To extract IP from file, this simple command do the trick :
grep -o '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' /var/log/auth.log 15-08-27 - 16:17:00

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