Here’s a quick and handy “awk” snippet to extract data from Nginx’s access or error log file for the past hour/s.

# awk -v d1="$(date --date '-60 min' '+%d/%b/%Y:%T')" '{gsub(/^[\[\t]+/, "", $4);}; $4 > d1' /var/log/nginx/access.log

This example shows how to extract data from /var/log/nginx/access.log for the past 60 minutes – ‘-60 min’.

Here are a few examples on how to exclude some packages from being updated during yum/dnf update:

# yum update --exclude=PACKAGENAME 

Exclude all kernel related packages during update:

# yum update --exclude=kernel*

Exclude gcc and java:

# yum update --exclude=gcc,java

Exclude all gcc and php related packages:

# yum update --exclude=gcc* --exclude=php*

In order to permanently exclude/disable updating of some specific packages you might want to update your dnf.conf or yum.conf eg:

[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exclude=kernel* php*             <---

Well, the log4j “situation” escalated quickly:

https://gist.github.com/SwitHak/b66db3a06c2955a9cb71a8718970c592

Happy patching everyone.

Go to wordpress’s web directory and simply:

chown -R user:group * 
find . -type d -exec chmod 755 {} \;
find . -type f -exec chmod 644 {} \;