Category Archives: linux

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Hiding your sshd with ufw and knockd on Ubuntu

Posted on 2015-05-07 by Joost

I don’t like it if malicious programs or people try to hack my server. I do, however, like to have access to my server, via ssh of course. Not just from home, but from wherever I happen to be. Fortunately, … Continue reading →

Posted in linux | Tagged firewall, hide ssh, hide sshd, knock, knockd, linux, port 22, port knocking, portscan, protect ssh, protect sshd, protect your server, ssh, sshd, ubuntu, ufw | Leave a comment

Wifi USB adapter N300 in Ubuntu server

Posted on 2015-03-28 by Joost

In my living room, I have a home theatre PC that runs Ubuntu 14.04 with Kodi (formerly XBMC). I wanted to reduce the amount of cables under my TV, so I bought a Sitecom N300 Wi-Fi USB adapter. It turned out … Continue reading →

Posted in linux | Tagged 14.04, configuration, linux, ubuntu, ubuntu 14.04, usb, usb adapter, wifi, wifi usb adapter, wireless, wlan, wpa, wpa_supplicant | Leave a comment

Cannot login after upgrading to Ubuntu 14.04

Posted on 2014-08-03 by Joost

On my Macbook Pro, I run a virtual Ubuntu machine thanks to VMware Fusion. This works great and I am very happy with it. However, when I upgraded it from 12.04 LTS to 14.04 LTS, I could no longer login … Continue reading →

Posted in linux | Tagged 12.04, 14.04, accountsservice, cannot login, lightdm, linux, login, login screen, macosx, ubuntu, uid, userid, vmware, vmware fusion | Leave a comment

2 files: finding lines that are in only 1 of those files

Posted on 2010-07-08 by Joost

Today, I learned a trick at work. I had a list of phone numbers in a file, and wanted to obtain a second list of phone numbers: the ones that were in a table in our database, but not in … Continue reading →

Posted in linux, unix | 1 Comment

Category Archives: linux

Hiding your sshd with ufw and knockd on Ubuntu

Wifi USB adapter N300 in Ubuntu server

2 files: finding lines that are in only 1 of those files

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