Categories
Linux

Find files Linux commands

Search zip files

find . -type f -name '*.zip' -exec du -ch {} + | sort -h -r | head -n 20

Search folders with large size

du -a * | sort -n -r | head -n 20
Categories
Linux

Trace Route for an IP

Traceroute command

traceroute 8.8.8.8

IP Route command

ip route get 8.8.8.8

Other commands

ip route list
Categories
Linux

Get Recently installed softwares in Debian

Via command line

cat /var/log/dpkg.log.1 | grep "install"

Categories
Linux

Linux Process basics

List of processes

systemctl list-unit-files | grep enabled
ps aux | less

Top memory consuming process

ps aux --sort -rss | head -11
ps aux --sort +rss | tail -10
ps aux | sort -nrk 3,3 | head -n 5

Top Process ID’s

ps -eo pmem,pcpu,vsize,pid | sort -k 1 -nr | head -5
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head

Watch processes

top
watch "ps aux | sort -nrk 3,3 | head -n 5"

CPU info

cat /proc/cpuinfo 

Number of CPU’s

cat /proc/cpuinfo | wc -l
Categories
Linux

Enabling Modules for ReverseProxy

Update package lists:

apt-get update

Install Apache2 with mod_proxy:

sudo apt-get install libapache2-mod-proxy-html

Install libxml2 module:

apt-get install libxml2-dev

On /etc/apache2/apache2.conf add below code

LoadModule  proxy_module         /usr/lib/apache2/modules/mod_proxy.so
LoadModule  proxy_http_module    /usr/lib/apache2/modules/mod_proxy_http.so
LoadModule  headers_module       /usr/lib/apache2/modules/mod_headers.so
LoadModule  deflate_module       /usr/lib/apache2/modules/mod_deflate.so
LoadFile    /usr/lib/x86_64-linux-gnu/libxml2.so

Add a sample reverse proxy configuration to the same file:

ProxyPass /subfolder http://127.0.0.1:9999/
ProxyPassReverse /subfolder http://127.0.0.1:9999/

Restart Apache2:

systemctl restart apache2