Cisco err-disable recovery
Did it also happen to you, that a port of a remote switch went to err-disable and you had to drive to that location to reset it? Or you have…
Ubuntu do-release-upgrade reconnect
Usually I do a release upgrade over the network, using ssh with the command do-release-upgrade For some reasons the connection to the host I'm upgrading dies. No panic. Reconnect to…
Calculate file checksums using openssl
If you need to calculate the checksum of a file on Mac or UNIX simply use openssl: openssl md5 DeleteCookies.zip openssl sha DeleteCookies.zip This command gives you the checksum of…
Backup a system to a remote location using ‘netcat’ and ‘tar’
I use to say "backup is only for wimps". But to be honest, I do backups. And I even store the backup media in a save place. To get the…
How Do I Update The Root Hints Data File for BIND Named Server?
My local nameserver root zone file is outdated. It has no information about IPv6 and a root server recently changed its IP address. How do I update my root hints…
FortiGate Command Line Shortcuts
Fortigate offers some helpful features on the command line to position the cursor. up arrow, CTRL-P Previous command down arrow, CTRL+N Next command CTRL-A Beginning of line CTRL-E End of…