Introduction – cron is a daemon to execute scheduled commands (Vixie Cron). cron daemon has following options… cron [-f] [-l] [-L loglevel] Options -f Stay in foreground mode, don’t daemonize. -l Enable LSB compliant names for /etc/cron.d files -L loglevel Sets the loglevel for cron. The standard logging level (1) will log the start of …
Introduction – cron is a daemon to execute scheduled commands on Linux and UNIX operating system.There are two type of cron job (crontab) – 1) User based cron job (crontab) 2) System wide cron job (crontab) 1] User based cron job (crontab) – ‘crontab’ command is used to schedule user based cron jobs. Each user …
Introduction – cPanel server is fully implemented in Perl language. Upgrading Perl on cPanel server is risky process. So you should be extremely careful while do this…. ** How to find the Perl version on Cpanel server- root@arunbagul:~# perl -v This is perl, v5.8.0 built for i386-linux-thread-multi … root@arunbagul:~# ** Download latest version of Perl …
Introduction – Some one ask me, Is there any way disabled or enabled access to crontab? I replied with answer Yes, there is way to manage access to crontab!!. But Why we need to restrict some one from setting/accessing crontab? Any system/Linux/Unix Admin wants that, only Admin should have full access to System and they …
Introduction – Why we have to install Internet Explore (IE) on Linux/Unix? Those who are working in web development, they need IE for checking web site compatibility with IE. For checking the site on IE they don’t have separate machine, Infact they don’t need separate PC. Even they want to use Linux only as they …
What is GreenSQL? GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works in a proxy mode and has built in support for MySQL. The logic is based on evaluation of SQL commands using a risk scoring matrix as well as blocking known db administrative commands (DROP, CREATE, …
Introduction – 1) Shared web servers— Anyone else on the server can read your session files (typically in the /tmp directory) if PHP is running as an Apache module (so the session files belong to the web user) and possibly when PHP is used as a CGI (depending on how sessions are implemented). Someone browsing …
Introduction – GRUB (GRand Unified Bootloader) is the part of GNU project, which was originally designed and implemented by Erich Stefan Boleyn. GRUB is one of the best open source boot loader used to boot Linux operating system. Which can load a wide variety of free operating systems (Linux), as well as proprietary operating systems …
Introduction – The SQL so far is part of the standard that all SQL implementations. Now let’s about the most useful, but most difficult areas of SQL – built-in SQL functions. Types of functions – Like most computer languages, SQL includes the capability to perform functions on data. However, each database vendor has implemented their …
Introduction – After fresh installation of cPanel server, Whenever I have tried to start MySQL server, it has failed to start due to unknown reason. This is really crazy problem on cPanel!. Even you upgrade MySQL from 4.0 to latest 5.x version, MySQL server simply failed to start!! You will not find any thing in …