Bread & Cup » Linux http://blog.breadncup.com Sat, 28 Jan 2012 11:25:00 +0000 en hourly 1 http://wordpress.org/?v=3.3 Multiple ssh private keys http://blog.breadncup.com/2011/05/17/multiple-ssh-private-keys/ http://blog.breadncup.com/2011/05/17/multiple-ssh-private-keys/#comments Wed, 18 May 2011 06:17:41 +0000 Breadncup http://blog.breadncup.com/?p=430 * referred by http://www.karan.org/blog/index.php/2009/08/25/multiple-ssh-private-keys

In .ssh directory, if there is a config file, ssh keys can be controlled by it.

For example, ~/.ssh/config would be

Host *.home.lan
  IdentityFile ~/.ssh/id_dsa.home
  User kbsingh

Host *.vpn
  IdentityFile ~/.ssh/id_rsa.work
  User karanbir
  Port 44787

Host *.d0.karan.org
  IdentityFile ~/.ssh/id_rsa.d0
  User admin
  Port 21871

id_rsa.xx is the private key.

]]> http://blog.breadncup.com/2011/05/17/multiple-ssh-private-keys/feed/ 1 Make http proxy for git in linux http://blog.breadncup.com/2011/05/14/make-http-proxy-for-git-in-linux/ http://blog.breadncup.com/2011/05/14/make-http-proxy-for-git-in-linux/#comments Sat, 14 May 2011 23:22:55 +0000 Breadncup http://blog.breadncup.com/?p=423 First, you need to know your http proxy server. You probably have $http_proxy environmental variable in bash. Using this, you can specify the http proxy to git. It’s simple.

git config --global http.proxy $http_proxy

That’s it.

]]> http://blog.breadncup.com/2011/05/14/make-http-proxy-for-git-in-linux/feed/ 0 Installing mathtex.cgi http://blog.breadncup.com/2009/11/27/installing-mathtex-cgi/ http://blog.breadncup.com/2009/11/27/installing-mathtex-cgi/#comments Sat, 28 Nov 2009 01:12:32 +0000 Breadncup http://blog.breadncup.com/?p=175 In order to make and install mathtex.cgi, latex and dvipng are prerequisite. You need to install latex first and divpng will come along with it.

You can follow the instruction

  1. http://www.forkosh.dreamhost.com/source_mathtex.html#install

Following will show how I have done with it for example.

# wget http://www.forkosh.com/mathtex.zip
# mkdir mathtex
# cd mathtex
# unzip ../mathtex.zip
# cc mathtex.c –DLATEX=\\"$(which latex)\\" \\
–DDVIPNG=\\"$(which dvipng)\\" –o mathtex.cgi
# cp mathtex.cgi /public_html/xxx.../cgi-bin/

For test of mathtex.cgi, in your web browser, you can do it by

www.example.com/cgi-bin/mathtex.cgi?x^2+y^2

It will give you the gif image showing equation by latex syntax.

]]> http://blog.breadncup.com/2009/11/27/installing-mathtex-cgi/feed/ 12 Convert from/to utf-8 to/from euc-kr in emacs http://blog.breadncup.com/2008/08/11/convert-fromto-utf-8-tofrom-euc-kr-in-emacs/ http://blog.breadncup.com/2008/08/11/convert-fromto-utf-8-tofrom-euc-kr-in-emacs/#comments Mon, 11 Aug 2008 07:39:08 +0000 Breadncup http://blog.breadncup.com/?p=45 * Note that this works with emacs 22.2 windows version.

  1. Load a document
  2. M-x mm-set-buffer-file-coding-system
  3. Select language type (For example, euc-kr or utf-8)
  4. Check the buffer encoding type
  5. Sava a document by C-x s or M-x write-file

Make sure that “(setq coding-system-for-write           ‘utf-8)” should not be set in .emacs. If that, it will write it utf-8 always.

]]> http://blog.breadncup.com/2008/08/11/convert-fromto-utf-8-tofrom-euc-kr-in-emacs/feed/ 0 Linux-powered digital picture frames http://blog.breadncup.com/2007/07/04/linux-powered-digital-picture-frames/ http://blog.breadncup.com/2007/07/04/linux-powered-digital-picture-frames/#comments Wed, 04 Jul 2007 20:18:39 +0000 Breadncup http://blog.breadncup.com/2007/07/04/linux-powered-digital-picture-frames/ Linux-powered digital picture frames

It is introducing Digital Picture Frame in home with old laptop PC using Linux OS.

]]> http://blog.breadncup.com/2007/07/04/linux-powered-digital-picture-frames/feed/ 0