Sticky bit Permissions
What are sticky bit? Files located in a directory with the sticky bit set can only be deleted or renames by the owner of the file or by the root user. How to set Sticky … Read more
Category : System Administration
Changing the Cron Subject Line Email Output (Ubuntu)
Instead of using the default MAILTO of the cron file you can use the mail program installed on your server to send the email with a custom “Subject Line”. 10 1 * * * /var/myscript.sh … Read more
Crontab Visual Format
* * * * * * | | | | | | | | | | | +– Year (range: 1900-3000) | | | | +—- Day of the Week (range: 1-7, 1 standing for … Read more
Clean up Your Boot Partition Ubuntu
If you constantly run out of space in the boot partition, you might need to run the following command to cleanup the boot partition. First, list all installed kernels dpkg -l linux-image-* | grep ii … Read more
ssh_exchange_identification: read: Connection reset by peer
ssh_exchange_identification: read: Connection reset by peer I kept getting this error when i tried scp from a remote server to a local server. Solution in my case The remove server had the ALL: ALL in … Read more