ssconvert is a utility shipped with Gnumeric, a command-line spreadsheet converter. It is useful when you have data in a spreadsheet and want to parse[……]
Author: Andrea
Firefox – prevent websites from refreshing
Fed up with websites and tabs continuously reloading themselves and using resources unnecessarily? Me too!
In Firefox, you can disable this from the a[……]
How to update all docker base images with one command
To pull the latest version of all your Docker images at once:
for docker in $(docker images | awk '{print $1,$2}' | sed 's/ /:/g' | grep -v REPOSITOR[......]
How to update all pip python packages with one command
To update all your pip-installed Python packages at once:
sudo pip install -U `pip list -o | cut -d ' ' -f1 | tr '\n' ' '`
This lists outdated packa[……]
Proxmox – Passthrough card/device to openVz container
I wanted to passthrough a dual tuner TV card (Hauppauge WinTV Nova-T-500) to an openVz container in order to use tvHeadEnd. The procedure should be th[……]
Use Remmina to satisfy all your remote connection needs
Remmina is a remote desktop client that supports multiple network protocols — RDP, VNC, NX, XDMCP and SSH — in a nice and very user-friendly GUI.
In i[……]
Test email from command line
When you set up email forwarding or configure a new MTA, you will want to confirm it is working before relying on it for alerts. A quick test is all y[……]
PHP: remove duplicate elements from a multi-dimensional array
This post is over 3 years old, so please keep in mind that some of its content might not be relevant anymore.
PHP’s array_unique() is great for[……]
Ban offending IP addresses – fail2ban
If you run a public SSH server, you will see failed login attempts in your logs constantly. Fail2ban monitors those logs and adds firewall rules to bl[……]
Send system emails using gmail as smtp server
I wrote before about sending system emails using sendmail as a smarthost. Here is an alternative approach using Gmail SMTP servers — often simpler to[……]