Disable Native Notification on Google Chrome Ubuntu
On Ubuntu, Google chrome had a disable native notification option. On Chrome 78, this option is removed. But you still can manually…
linux
Identify virtual machine technology
virt-what is a shell script which can be used to detect if the program is running in a virtual machine. It will…
apropos
apropos is a linux command that search manual pages and descriptions. Example root@mil-146068:~# apropos vagrant vagrant (1) – Tool for building and…
maximum number of open files and file descriptors in linux
To see open files in linux use the command lsof There is a limit set in the kernel on how many open…
df not showing all mounts
On a server, df not showing all mounts root@server20 [~]# df -h Filesystem Size Used Avail Use% Mounted on tmpfs 3.9G 0…
Show disk usage with df
df command shows partitions and disks used by each partition. root@server54 [~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2…
MySQL ERROR Access denied you need SUPER privilege for this operation
WHen restoring a MySQL database, i get following error root@ns3043014:~# mysql -u NEW_DB_USER -p’PASSOWRD_HERE’ DB_NAME < BACKUP_FILE.sql ERROR 1227 (42000) at line…
Install Unbound DNS caching server
Unbound is an Open source DNS caching and recursive resolver. You can find more about unbound at https://nlnetlabs.nl/projects/unbound/about/ To install unbound on…
Manually run icecast on CentovaCast server
On CentovaCast server, icecast is run as user ccuser, to run icecast, you need to enable shell for this user. By defult,…
CentovaCast Enable SSL on icecast
Before you can get SSL work, you need to compile icecast with SSL. If icecast is not installed with SSL support, it…
Install Paid SSL on Centova Cast
To install SSL on Centova Cast, edit file vi /usr/local/centovacast/etc/ssl/certificate.pem Add your SSL cert and ca-bundle file content to this file. Edit…
Set server time PST/PDT
To set server time to PST/PDT, run rm -f /etc/localtime ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime or timedatectl set-timezone America/Los_Angeles