One of the things that was on my whiteboard for some time was to set up a VPN for home use. Sure, I can do some remote SSH port forwarding, use ssh as a proxy or perhaps even use some Linux Tunneling Techniques but they’re not quite the same as a full blown VPN. You can use the VPN for access to remote services, to secure communications on untrusted networks or use it for mobile devices. Whatever your use its easy to set a VPN up with pptpd that can be used with your mobile and remote devices. (Read on …)
I was having an issue with a preupgrade of Fedora, somehow an old package that was no longer in use decided it was going to cause the installation to fail. After rebooting, finding the guilty package and removing it I started the upgrade again. This is where the error message “The root for the previously installed system was not found” occurred.
I did some research, tried mounting the file system then upgrading that way and still nothing.
According to this Fedora Forums post other people have experienced this issue. In cagonto1980’s post it explains the workaround:
Mount the filesystem, vi /mnt/sysimage/etc/fedora-release and change the release to the previous version. You may need to remember the version, mine was set to “Fedora 13 (Goddard)” and I changed it to “Fedora 12 (Constantine)”. After rebooting it started the upgrade. It appears the issue is Anaconda updates the release file and doesn’t change it back if the installation fails causing the next upgrade to think that the newest version is installed.
Thanks to cagonto1980 for the workaround.
Hello readers! This post is a list of soft phones available for Linux. It is not an all inclusive list, more of a list of those I’ve installed or tested. These are just a handful of them, there are probable way more available that I’m not aware of. Some of these are cross platform and are listed if they are available in Ubuntu and Fedora’s repositories as of the time of this writing. Use the comments to let me know of any good ones or which ones you’ve used or recommend!
I’ll start off saying I’m graphically challenged, well more like anything visually related, I’m so bad I can’t even match my clothes properly. If you have you seen my work (check out the Free DVD Ripper Software post for a classic example) this should be obvious. I do however do all of my own stunts graphics . I remember when I used to work with a bunch of Photoshop Guru’s, they could do pretty much anything with Photoshop. They were deadly, I once saw them take a picture of our co-workers and shop it so that they were kissing other people. Apart from the system administrators these are the people I’d be least likely to pull a prank on, these guys were just pure dangerous. When I asked them how they learned to ‘shop the most common response was not from school but from the web. They pointed me to some good resources that they use to pull off certain things.
So The Gimp is everyone’s favorite open source image editing software right? Well, here are some similar websites to those mentioned above.
With these sites and a some time you’ll be a master like much better than me and I’ve spent hours on this stuff. You do have to admit though, my shop’n skills have got better as time has passed I some how managed to make all of these graphics Freemind Vs. Kdissert, Linux Server Monitoring, Thunderbird localmail spool and Linux Backup Utility Roundtable
This is a guest post by Usama Hashimi. Usama is currently a student of MPhil in Economics and enjoys Learning about Linux, Surfing the Internet, watching movies and Listening to Music.
Beginners are mostly afraid of the command prompt. Whenever they see one, they immediately say “it’s very difficult”. But it’s not true. The command prompt is just as friendly as GUI, provided you use it with proper procedure.
Most people use GUI tools to search for their lost files. They don’t even know that they can use command line tools to search their files. GNU ‘find’ is such like a tool which can not only search files but can even copy, move or delete these files on the fly.
So let’s see that how ‘find’ works.
(Read on …)
There is a bunch of Linux Server Monitoring software available. The problem is sifting through it all. The first thing to do is identify what it is you want to monitor then you can find what software will work best for your needs. As far as system monitoring goes there is old school and new school. Any combination of tools could be used and there are also a number of ways you can home brew some monitoring solutions. Click for the large version of the Linux Server Monitoring Image. (Read on …)
History is great. How does the saying go?
“Those who forget about history are doomed to repeat it?”
If that’s the saying I think it is more fitting to say that for those who forget the Linux History Command are doomed to repeat typing. A lot. Seriously, the history command can help you remember the exact Linux find command with the intricate search options you typed a while ago. It could help you open up your x2x or x2vnc sessions after a reboot. Who knows what you’ll use it for. All this comes at a little cost, you’ll have to know how to use it.
Video completely unrelated.
Ever tunneled or used tunneling for mobile Internet? Perhaps you have needed to otherwise tunnel to bypass a restrictive firewall or for a secure channel on an insecure wireless network. It seems that everyone knows how to tunnel using the ssh socks support and how to use Firefox’s about:config screen to set it to use a socks and remote DNS. While this is great for occasional web browsing it only takes you so far.
tsocks is a great application to let you tunnel other programs over socks. Its easy to install on most distributions and allows you to use many command line applications. I’ve used it on a number of occasions successfully and while it does its job its not the the best solution. This is because it was last updated in 2002 and doesn’t perform DNS lookups. I found myself using it to SSH to an IP address (memorized, or looked up through another SSH session) and using applications on the remote server.
proxychains is a bit of a better tunneling solution, it works the similarly to tsocks but It also resolves DNS and can chain multiple proxies. I’ve used it on numerous occasions with great success. ssh, lynx, lftp, irssi and a whole bunch of others work without any problems. Another plus is it has also been updated in the last 5 years (but not by much.)
One application I haven’t yet had the pleasure of trying on the desktop is 3proxy. I have used it on the iPhone but ended up using the ssh socks method more often. From its yum description and feature list, it sounds very promising and one definitely worth looking into.
Speaking from experience I know its kind of difficult to browse your distributions web repositories to find the files you need and install them (I had to do this since I didn’t have them) so I recommend you download these applications and save yourself some time before you need them on the road.
Mind mapping is a great way to get all of your thoughts out. There are two major competitors when it comes to mind mapping on Linux.
In the blue corner we have reigning champion FreeMind and in the red corner we have a new contender for the best mind mapping software kkkkkkkkkkkdissert.
FreeMind Vs kdissert…. Fight. (Read on …)
With the upcoming release of Tron Legacy I can’t help but play this game. Now if only a 3D version got released and a certain some one would stand inline to get me 3D television on Black Friday. Better yet, code the 3D version WHILE waiting in line for Black Friday sale. Odds are I’ll probably get a leaf blower, ladder or something with lesser or equal buzz killing potential.
Check out my GLTron skills. Make sure to watch it in 480p and take no notice of the number of “Player 1″ crashes in the top left hand corner, that obviously wasn’t me. There also is NO sound, but you can install it, play the soundtrack at the same time and get the same effect. I think the only time I’ve ever been more 1337 was when I hacked that Gibson, but that’s a-whole-nother story. Also take note of the length of this video, a total accident.
Emanuele gave me the heads up of a new release of Vatlator which is a live CD for anonymous browsing. This is the first I’ve heard of Vatlator so naturally I downloaded it to see what it was all about. After setting up a new virtual machine and disk it had no problems booting up and did it fast. From testing Firefox, tor is enabled by default and works well, although a little slower but thats expected from using Tor. You may want to note that that not all traffic is routed through Tor, it would be best test to make sure that what you need is before you need to use it.
I installed the Virtual Box add-ons, and after restarting X by logging out, then logging back in (took me a while to figure this out) the resolution was much better. By the way, the sudo root password is vatlator. Since it is based on Ubuntu installing software works with apt-get and has a great range of packages.
One thing that baffles me is the “F… the censorship” slogan, it just seems a little hypocritical, but I can relate to reasons behind it. I’m definitely going to keep it handy since it runs great in Virtual Box, boots up quickly and performs really well. Kudo’s Emanuele!