Set default editor in Ubuntu
To set default editor in Ubuntu/Debian, run update-alternatives –config editor See update-alternatives
Linux
Reorder windows in tmux
To reorder windows in tmux, you can use following command CTRL + B + . Press CTRL + B or whatever prefix…
Setup Tor Hidden Service on CentOS 7
Tor is provided by EPEL repository on CentOS 7. Install EPEL repo with command yum install epel-release Install tor yum install tor…
Tor Hidden Service in Ubuntu/Debian
To install tor on Ubuntu/Debian, run apt install tor Default configuration file for tor is /etc/tor/torrc To enable hidden service, edit /etc/tor/torrc…
vmstat
[root@server70 ~]# vmstat -S M 1 10 procs ———–memory———- —swap– —–io—- –system– —–cpu—– r b swpd free buff cache si so bi…
vgcreate
To Create a volumegroup. vgcreate vg1 /dev/sdd1 /dev/sde1 Example [root@server ~]# vgcreate vg-storage /dev/sdb Volume group “vg-storage” successfully created [root@server ~]# vgdisplay…
Disable Netdata Email Notification
To disable email notifications from netdata, run /etc/netdata/edit-config health_alarm_notify.conf If the above command did not work, you can find the location of…
Find Files By Size
To find all files that are larger than 1 GB in size, run Example To find files older than 100 days, run…
Install drivers on Ubuntu
To install drivers on Ubuntu using command line, run boby@sok-01:~$ sudo ubuntu-drivers devices == /sys/devices/pci0000:00/0000:00:01.1/0000:01:00.0 == modalias : pci:v000010DEd00001F82sv00001458sd00003FCBbc03sc00i00 vendor : NVIDIA…
Linux KVM Virtualization
Install KVM Install Linux KVM on Debian 10 Install Linux KVM on Ubuntu Install Linux KVM on CentOS 7 Install Linux KVM…
CloudLinux CageFS
CageFS is a virtualized file system and a set of tools that isolate each user in its own “cage”. It is developed…