Question: I know #!/bin/bash is shebang line. But, I noticed a few shell script shebang line ends with a single dash ( #!/bin/bash - ) or double dash ( #!/bin/bash -- ). Can you explains me purpose of such shebang line? Answer: A - or -- signals the end of options and disables further option proces...
Continue reading ...Question: How do I enable EPEL (Extra Packages for Enterprise Linux) repo and install the packages under RHEL / CentOS Linux? Answer: EPEL (Extra Packages for Enterprise Linux) is a volunteer-based community effort from the Fedora project to create a repository of high-quality add-on packages that ...
Continue reading ...vnStat is a network traffic monitor for Linux that keeps a log of daily network traffic for the selected interface(s). vnStat isn't a packet sniffer. The traffic information is analyzed from the /proc -filesystem, so vnStat can be used without root permissions. However at least a 2.2.x kernel is req...
Continue reading ...To use https for web traffic, you will need to obtain a valid Apache SSL certificate. When generating an Apache (mod_ssl) SSL certificate, you have two options: Purchase a SSL certificate from a certificate authority (CA). Searching the Web for "certificate authority" will present several choices...
Continue reading ...Install Apache (httpd), PHP, MySQL (server and client), and the component that allows php to talk to mysql. yum -y install httpd php mysql mysql-server php-mysql php-gd Configure the new services to start automatically chkconfig httpd on chkconfig mysqld on service httpd start service mysqld start...
Continue reading ...Completely go Anonymous with the help of your SQUID Proxy lets assume you already did this steps How To Install Squid and How to Secure Squid Proxy i assume you are already enjoying your private Proxy surfing the world wide web but for your information some website can still detect your WAN IP addr...
Continue reading ...Yum crashes (and pirut, and pup, and yumex) upon trying to update File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 413, in _packageByKey po = self.pc(repo, cur.fetchone()) File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 68, in __init__ self._read_db_obj(db_...
Continue reading ...With or Without WWW on domain name which is best?? When you write a URL for your website, it can be written with or without "www," like this: * http://log.xmodx.com/ * http://log.xmodx.com/ Should you include "www" with your URL? The same and not the same With most websites, the URLs with and w...
Continue reading ...does necessary install suPHP on your server ? It is not necessary to install SuPHP on the server, but it is considered to be a good thing to do. what does suPHP do exactly and if i install it on your server there is not any conflict for my users script? It runs all PHP scripts as the user in...
Continue reading ...AdSense is an advertisement application run by Google. Website owners can enroll in this program to enable text, image, and more recently, video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis. Googl...
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