random PC tips

If addresses.txt contains lines of addresses, this grep command will give you only the lines with a valid IP address and nothing else. cat addresses.txt | grep '^[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}$'`

If you get "no such package" error when trying to install the no-ip client on Ubuntu, follow these instructions (more info at their help site ): cd /usr/local/src wget http://www.no-ip.com/client/linux/noip-duc-linux.tar.gz tar xzf noip-duc-linux.tar.gz cd no-ip-2.1.9 make make install

no-ip is my favourite dynamic DNS service, and I was saddened by the fact that my new Cisco EPC3825 cable modem didn't support it. I have a Linux server running, so my second option was to use that for updating the IP. All I needed was a script to do it for me, from inside the LAN of my home. Problem is, my server is in a LAN with an internal IP, while I need it to update no-ip.org with the IP address of my cable modem. It was made possible by 1) no-ip - maybe the best free dynamic DNS? 2) ifconfig.me - an AWESOME site for figuring out your IP in linux 3) some scripting skills 4) cron First, have an account at no-ip.org ready, so sign in and create an account if you haven't done it yet. Install curl and wget: apt-get install curl wget Install also the no-ip client (more info at their help site ): cd /usr/local/src wget http://www.no-ip.com/client/linux/noip-duc-linux.tar.gz tar xzf noip-duc-linux.tar.gz cd no-ip-2.1.9 make make install Now...

PROTIP: Just install the "Windows XP and Windows Vista" driver! At least it worked great for my Labtec Webcam 2200 and with Windows 7 32-bit. The drivers can be downloaded from: http://www.labtec.com/ Make sure you get the webcam model right!

NOTE: uTorrent cannot be trusted anymore. It is known to install Yandex, Ask Toolbar, a bitcoin miner and displayed ads among other fishy stuff. Don't use uTorrent! I recommend using qBittorrent instead, which is an open-source alternative. If you deleted uTorrent and want to remove all of its files, you might want to know where it stores them. On Windows 7, uTorrent stores .torrent files by default in: C:\Users\%USERNAME%\AppData\Roaming\uTorrent ...where %USERNAME% is your Win7 username, and assuming your Windows 7 installation is on C: drive. If you can't browse to this directory, write it on the address bar of Explorer. Another way is to show hidden files by going to Win7 control panel's "folder options" - then you can see the AppData folder.

Here's how: 1) Put the CD in your CD Tray 2) Download and run this installer Be sure not to use spaces in the directory name. For me, the installer didn't install the patch and the update . Download them and install first the newest patch, then the update. I recommend getting the newest beta version. Worms Armageddon is still being updated to this day, which is quite incredible...

Here's how I updated my server's Ubuntu from 11.10 to 12.04 LTS. I don't have a desktop installed on the server, so I had to run the upgrade from terminal. I have a forum running, a lot of MySQL databases and Apache 2 on the server. I'm also running sensord and other stuff like that. So some of the software will probably need some configuration. I logged on my server as root and ran apt-get update apt-get upgrade I installed all the updates, except new versions of the kernel. Maybe it's even better if you run apt-get dist-upgrade ... which will install a new kernel version. Then, using nano I edited the /etc/update-manager/release-upgrades file: nano /etc/update-manager/release-upgrades I changed it to read: Prompt=normal Then the update can be started: do-release-upgrade You might need to install the update manager first: apt-get install update-manager-core So the install started running, and quickly I was asked if I wanted to change the My...