Linux - OpenSource is Better

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[......]Read more

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This lists outdated packa[……]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[……]

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[……]

How to shred/wipe disks/partitions

When you delete a file normally, the data stays on the disk — the filesystem just marks the space as available. The data can be recovered with the rig[……]

How linux sucks

A humorous take on common Linux frustrations — a lighthearted look at what annoys even the biggest open source fans. :-)[……]

Formatting a partition from command line

When you need to format a partition from the command line, a few commands are all you need. Here’s the typical workflow.

First, create the files[……]