tag:blogger.com,1999:blog-44210095815844495022011-04-21T19:48:41.648-07:00Linux Administrationhttp://www.blogger.com/profile/01923000818263370904noreply@blogger.comBlogger41100tag:blogger.com,1999:blog-4421009581584449502.post-7482088746020503362009-01-14T00:02:00.000-08:002009-01-14T00:05:07.649-08:00<a href="http://www.skype.com/intl/en/">Skype</a> is todays most popular application for voice chat and telephony which is used for internet conversations. The latest Skype release for Linux is 2.0.0.7<br /><br />Installation in Ubuntu<br /><br />1. Install the needed dependencies<br /><br /><strong><span style="color:#3333ff;">sudo apt-get install libasound2 libc6 libgcc1 libqt4-core libqt4-gui libsigc++-2.0-0c2a libstdc++6 libx11-6</span></strong><br /><strong><span style="color:#3333ff;"></span></strong><br />2. Download the DEB package and install it<br /><br />Download the package from the official website <a href="http://www.skype.com/intl/en/download/skype/linux/choose/">here</a> . At the time of writing the package is called skype-debian_2.0.0.72-1_i386.deb.<br /><br /><span style="color:#3333ff;"><strong>sudo dpkg -i skype-debian_2.0.0.72-1_i386.deb</strong></span><br /><strong><span style="color:#3333ff;"></span></strong><br />The Skype is now available in /usr/bin/skype. You can run it by typing ALT+F2 and entering skype in the run dialogue that appears.<div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4421009581584449502-748208874602050336?l=gnulinuxadministration.blogspot.com' alt='' /></div>Linux Administrationhttp://www.blogger.com/profile/01923000818263370904noreply@blogger.com0tag:blogger.com,1999:blog-4421009581584449502.post-32715429052531071632009-01-13T23:50:00.000-08:002009-01-13T23:54:53.034-08:00<strong>How often have you typed in a command and then realized that you forgot to type sudo. This will help you, don/t need to type the long long command.</strong><br /><strong></strong><br /><strong>type the following !! will replace your last command</strong><br /><br /><span style="color:#3333ff;"><strong>$ sudo !!</strong></span><br /><br /><strong>Example</strong><br /><strong><span style="color:#3333ff;">$ vi /etc/apt/sources.list</span></strong><br /><strong>this will open file as read only you need sudo to edit the file</strong><br /><br /><strong><span style="color:#3333ff;">$ sudo !!</span></strong><br /><strong></strong><br /><strong>this will expand your command automatically to</strong><br /><strong></strong><br /><strong><span style="color:#3333ff;">$ sudo vi /etc/apt/sources.list</span></strong><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4421009581584449502-3271542905253107163?l=gnulinuxadministration.blogspot.com' alt='' /></div>Linux Administrationhttp://www.blogger.com/profile/01923000818263370904noreply@blogger.com0tag:blogger.com,1999:blog-4421009581584449502.post-27208906459161349792009-01-12T01:16:00.000-08:002009-01-12T01:19:16.387-08:00Here I will explain how to block a port using squid proxy server and open this port for a selected user.<br /><br /><strong><span style="color:#009900;">First you have to open squid configuration<br />File /etc/squid/squid.conf</span></strong><br /><br /><strong><span style="color:#3333ff;">#vi /etc/squid/squid.conf</span></strong><br /><br /><span style="color:#006600;"><strong><span style="color:#009900;">Locate your Access Control List (ACL) section in the file and add the following lines</span>:</strong></span><br /><br /><strong><span style="color:#3333ff;">acl block_port port 1234<br />http_access deny block_port<br />http_access allow all</span></strong><br /><br /><strong><span style="color:#009900;">If you just want to skip a particular IP (192.168.0.100) try as follows:<br /></span></strong><br /><strong><span style="color:#3333ff;">acl block_port port 1234<br />acl no_block_port_ip src 192.168.0.200<br />http_access deny block_port! no_block_port_ip<br />http_access allow all</span></strong><br /><br /><span style="color:#009900;"><strong>Close and save the file.<br /><br />Restart your Squid Proxy Server:</strong></span><br /><span style="color:#3333ff;"><br /><strong># /etc/init.d/squid restart</strong></span><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4421009581584449502-2720890645916134979?l=gnulinuxadministration.blogspot.com' alt='' /></div>Linux Administrationhttp://www.blogger.com/profile/01923000818263370904noreply@blogger.com0tag:blogger.com,1999:blog-4421009581584449502.post-87427211902841611332009-01-12T01:10:00.000-08:002009-01-12T01:14:41.480-08:00You can block websites using squid proxy with easy steps. First you have to create a text file with blocked domain name list such as sex.com, orkut.com, gmail.com, hotmail.com and so on. Second define and Access Control List (ACL). Third and final step Restart Squid.<br /><br />First, create a file called /etc/squid/blocked.domains.acl(any file name you can choose)<br /><span style="color:#3333ff;"><strong>#cd /etc/squid</strong><br /></span><span style="color:#3333ff;"><strong>#vi blocked.domains.acl<br /></strong></span><br />add domain names in the file,<br /><br /><span style="color:#ff0000;"><strong>eg:<br />sex.com<br />orkut.com<br />gmail.com<br />hotmail.com<br /></strong></span><br />Save and close the file.<br /><br />Open /etc/squid/squid.conf file:<br /><br /><span style="color:#3333ff;"><strong>#vi /etc/squid/squid.conf<br /></strong></span><br />Create acl called blockeddomain<br /><br /><strong><span style="color:#3333ff;">acl blokeddomain dstdomain “/etc/squid/blocked.domains.acl”</span></strong><br /><br />Deny http access, enter<br /><br /><strong><span style="color:#3333ff;">http_access deny blockeddomain</span></strong><br /><br />Close and save the file. Restart squid proxy server<br /><br /><strong><span style="color:#3333ff;">#/etc/init.d/squid restart<br /></span></strong><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/4421009581584449502-8742721190284161133?l=gnulinuxadministration.blogspot.com' alt='' /></div>Linux Administrationhttp://www.blogger.com/profile/01923000818263370904noreply@blogger.com0