Re: [Ilugc] dynamic
On May 9, 2012 7:25 PM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: Yes, you have to use dynamic DNS but that does not come free even from dyndns.org. Try afraid.org. - Raja ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] How to install Linux headers after compiling kernel from source
On Thu, May 10, 2012 at 12:15 AM, prasannatsmkumar prasannatsmku...@gmail.com wrote: Hi, I compiled linux 3.4-rc5 kernel from source code and installed it. Now I need to install the linux headers so that I can install my AMD catalyst graphics driver. I am not able to find way to install linux headers. make headers_install make help - shows other supported targets ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] State transition diagram
Hi all, I need to draw state transition diagrams of a system involving ~30 states (nodes). I have the state transition probability matrix in a file. Is there any tool which take this matrix as input and draws the state transition diagram. I checked dia, but, could not find any thing useful. -- regards, Narendran K. All generalizations are false. ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] State transition diagram
Maybe an R package, but R isn't user friendly. I suppose you could search Google's indices for something like site:r-project.org transition diagram I hope that helps, Kingsley On 05/10/12 12:00, Narendran K wrote: Hi all, I need to draw state transition diagrams of a system involving ~30 states (nodes). I have the state transition probability matrix in a file. Is there any tool which take this matrix as input and draws the state transition diagram. I checked dia, but, could not find any thing useful. -- regards, Narendran K. All generalizations are false. ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] State transition diagram
On Thu, May 10, 2012 at 12:00 PM, Narendran K mayavi.may...@gmail.com wrote: Hi all, I need to draw state transition diagrams of a system involving ~30 states (nodes). I have the state transition probability matrix in a file. Is there any tool which take this matrix as input and draws the state transition diagram. I checked dia, but, could not find any thing useful. You have a jQuery plugin arrows and boxes Does exactly what you want It is too clever that makes you marvel at the creator's brain but well it works and that is that. -Girish -- regards, Narendran K. All generalizations are false. ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc -- Gayatri Hitech http://gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] X forwarding over reverse ssh
It seems my post didn't reach the mailing list. So I am reposting again. What is reverse ssh? You mean remote port fwd? It is not exactly remote port fwd. It is binding remote ssh service in the local port. I mean using -R switch in ssh. Xephyr is actually Xnest which allows multiseat and is a X in X, that is all I know. I dunno how you used it to do X forward. Did you use the ssh -Y switch? I tried both -X and -Y but I can feel that it is not logical because I am forwarding X over 3 machines. I will explain the problem clearly once again. Assume the following. I have 3 machines. 1. protected pc - a pc behind firewall / NAT / router (so you can not directly connect to this machine on any port.) - user name is poomalai_protected 2. My desktop - In this machine I want to see the GUI apps / whole desktop environment of protected pc. User name is poomalai_desktop 3. My webserver - A hosted machine with ssh access. I can forward or use any random port number in this machine. but I am not root in this machine. (User name is poo) Here you could have correctly identified that protected pc is my N900 Now, the problem is I want to access protected pc from my desktop. I use the following command on the protected pc ssh -R 2:localhost:22 poo@mywebserver Now the protected pc is logged in to my webserver and I run top command to keep the ssh session alive. and leave the machine logged in to my web server Now I go to My Desktop and connect to the webserver as usual ssh poo@webserver Once logged in, I run the following ssh poomalai_protected@protectedpc -p 2 Now I get the bash and I can run commands on protected pc. But I could not run any GUI apps. I usually use Xephyr to run any GUI app or the whole desktop session when I use straight ssh. That means I just use -X to connect to the machine I want to connect and set DISPLAY env variable to the port where Xephyr is running and GUI apps(like firefox, gedit etc) / the whole desktop session (if I use xfce4-session in ssh) will be displayed inside the Xephyr window. Now my question: Is there a way similar to this to forward X from my protected pc to web server to my desktop? I am open to use any program. You can suggest vnc or normal X forwarding or anything. The objective is to access protected pc somehow. Thats it. Please suggest opensource solutions alone. I am not interested in teamviewer or something similar. Can freenx be used to solve this problem? Any suggestions? And 0, I tried your solution [N900]$ ssh -R 2:localhost:22 poo@mywebserver [Desktop]$ ssh -t -X poo@mywebserver ssh -X user@localhost -p 2 and got the following. Warning: No xauth data; using fake authentication data for X11 forwarding. ssh_exchange_identification: Connection closed by remote host Connection to xxx.xxx.xxx.xx closed Thanks Girish and 0 for your valuable inputs - Poomalairaj @poomalairaj http://twitter.com/#%21/poomalairaj http://blog.poomalairaj.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] X forwarding over reverse ssh
Such things are not resolved over mails. We need a skype call and we should use remote debugging tools like teamviewer or vnc or ssh/tmux. Anyway see below. On Thu, May 10, 2012 at 12:56 PM, poomalairaj poomalaira...@gmail.com wrote: It seems my post didn't reach the mailing list. So I am reposting again. What is reverse ssh? You mean remote port fwd? It is not exactly remote port fwd. It is binding remote ssh service in the local port. I mean using -R switch in ssh. That is technically called remote port forwarding, if you wish to call it reverse ssh, then go ahead. I tried both -X and -Y but I can feel that it is not logical because I am forwarding X over 3 machines. I will explain the problem clearly once again. Assume the following. I have 3 machines. 1. protected pc - a pc behind firewall / NAT / router (so you can not directly connect to this machine on any port.) - user name is poomalai_protected Okay. 2. My desktop - In this machine I want to see the GUI apps / whole desktop environment of protected pc. User name is poomalai_desktop 3. My webserver - A hosted machine with ssh access. I can forward or use any random port number in this machine. but I am not root in this machine. (User name is poo) Here you could have correctly identified that protected pc is my N900 Now, the problem is I want to access protected pc from my desktop. I use the following command on the protected pc ssh -R 2:localhost:22 poo@mywebserver Now the protected pc is logged in to my webserver and I run top command to keep the ssh session alive. and leave the machine logged in to my web server Now I go to My Desktop and connect to the webserver as usual ssh poo@webserver Once logged in, I run the following ssh poomalai_protected@protectedpc -p 2 Now I get the bash and I can run commands on protected pc. But I could not run any GUI apps. I usually use Xephyr to run any GUI app or the whole desktop session when I use straight ssh. That means I just use -X to connect to the machine I want to connect and set DISPLAY env variable to the port where Xephyr is running and GUI apps(like firefox, gedit etc) / the whole desktop session (if I use xfce4-session in ssh) will be displayed inside the Xephyr window. Now my question: Is there a way similar to this to forward X from my protected pc to web server to my desktop? I am open to use any program. You can suggest vnc or normal X forwarding or anything. The objective is to access protected pc somehow. Thats it. Please suggest opensource solutions alone. I am not interested in teamviewer or something similar. teamviewer does not work on OpenBSD but it is incredible. Very bandwidth efficient and quite at the level of open source quality and convenience. Can freenx be used to solve this problem? Any suggestions? And 0, I tried your solution [N900]$ ssh -R 2:localhost:22 poo@mywebserver [Desktop]$ ssh -t -X poo@mywebserver ssh -X user@localhost -p 2 and got the following. Warning: No xauth data; using fake authentication data for X11 forwarding. ssh_exchange_identification: Connection closed by remote host Connection to xxx.xxx.xxx.xx closed I don't think it is as complicated as you think. But as I said, I am in the middle of too many things and e-mail is not the way to go about this. But I can assure you that this can be solved easily if you think through. Best of luck. -Girish -- Gayatri Hitech http://gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] X forwarding over reverse ssh
And 0, I tried your solution [N900]$ ssh -R 2:localhost:22 poo@mywebserver [Desktop]$ ssh -t -X poo@mywebserver ssh -X user@localhost -p 2 and got the following. Warning: No xauth data; using fake authentication data for X11 forwarding. ssh_exchange_identification: Connection closed by remote host Connection to xxx.xxx.xxx.xx closed I haven't played around with X much so I don't know why that error happens. You should search for it on the web and try various suggestions. My guess is, your xauth is failing for some reason. Did you try running the GUI app directly ? Like in the example below, I try to run firefox instead of getting a shell. ssh -t -X poo@mywebserver ssh -X user@localhost -p 2 firefox If you find a solution, do let us know. It will help. -- 0 ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] State transition diagram
You can also try PlantUML(http://plantuml.sourceforge.net/state.html) which can convert textual input to state diagrams. Thanks Regards, Siva Chandran P ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] Top 5 Videos from The Linux Foundation
Dear folks, Today we have made our new blog post containing Top 5 Videos from The Linux Foundation. The Linux Foundation (http://linuxfoundation.org) is a Non-Profit Technical Linux Consortium which has its wing spread World-Wide. Check the post here:- http://puduvailug.wordpress.com/2012/05/10/top-videos-from-the-linux-foundation/ Hope you will enjoy those videos. -- Regards, Prasanna Venkadesh PuduvaiLUG Mailing List: http://puduvailug.wordpress.com/mailing-list-guidelines/ FOSS Jobs all over India: http://fossjobs.in ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] Fwd: SciRuby Summer of Code
-- Forwarded message -- From: kashyap garimella garimella.kash...@gmail.com Date: May 11, 2012 9:15 AM Subject: SciRuby Summer of Code To: iitm-hackers-club iitm-hackers-c...@googlegroups.com, linuxusers_i...@googlegroups.com Hi, SciRuby has announced its summer of code: http://sciruby.com/blog/2012/05/08/sciruby-summer-of-code/ Check it out if you haven't. Cheers, Kashyap. -- IIT Madras Linux Users' Group http://groups.google.co.in/group/linuxusers_iitm http://www.cse.iitm.ac.in/~osslab/wiki ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] SciRuby Summer of Code
SciRuby has announced its summer of code: http://sciruby.com/blog/2012/05/08/sciruby-summer-of-code/ Found that it is for only US students. We need more summer of code contests for indian students. May be some indian companies can join together and start such contributing contests. -- Regards, T.Shrinivasan My Life with GNU/Linux : http://goinggnu.wordpress.com Free/Open Source Jobs : http://fossjobs.in Get CollabNet Subversion Edge : http://www.collab.net/svnedge ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] SciRuby Summer of Code
We need more summer of code contests for indian students. May be some indian companies can join together and start such contributing contests. Shouldn't they get a break from studies ? Coding/Researching all summer in an organized way sound boring, an unorganized chaos in code is always fun though. -- 0 ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] The Debian Administrator’s Handbook is available
About the book: Written by two Debian developers — Raphaël Hertzog and Roland Mas — the Debian Administrator's Handbook started as a translation of their French best-seller known as Cahier de l'admin Debian (published by Eyrolles). It's a fantastic resource for all users of a Debian-based distribution. Accessible to all, this book teaches the essentials to anyone who wants to become an effective and independant Debian GNU/Linux administrator. Accessible to all, this book teaches the essentials to anyone who wants to become an effective and independent Debian GNU/Linux administrator. It covers all the topics that a competent Linux administrator should master, from the installation and the update of the system, up to the creation of packages and the compilation of the kernel, but also monitoring, backup and migration, without forgetting advanced topics like SELinux setup to secure services, automated installations, or virtualization with Xen, KVM or LXC. Structure of the book: The first half of the book covers topics relevant for any Debian user: how the Debian project works and the various distributions that it offers; how to effectively use the packaging system and the associated tools (dpkg, APT, …); how to install Debian with debian-installer; how to find the required documentation/help; how to setup new services; how to solve the problems that you might encounter; The second half of the book concerns system administrators who have to setup and manage a Debian server, or a large set of desktop machines. You’ll learn: how to configure all the most common services (Apache, Postfix, OpenLDAP, Samba, NFS, …) how to setup virtual machines with KVM/Xen/LXC how to secure your server how to automatize installations with FAI/d-i/simple-cdd how to manage your storage with LVM and RAID etc. See the Table of Contents here: http://debian-handbook.info/about-the-book/toc/ Get the book: http://debian-handbook.info/get/now/ -- Regards, T.Shrinivasan My Life with GNU/Linux : http://goinggnu.wordpress.com Free/Open Source Jobs : http://fossjobs.in Get CollabNet Subversion Edge : http://www.collab.net/svnedge ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
