May 19, 2010

Plesk DBWebadmin(PHPMyAdmin) Error

Plesk,

FFMPEG and it's related modules Installation through Script: Details:All FFmpeg packages are installed from source except codecs. The main dependency for installing ffmpeg is: yum Ffmpeg installation will...

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May 19, 2010

Plesk Fatal exception error and Fix

Plesk,

Plesk Fatal Exception Error: Unable to create or delete domains under Plesk panel. Failed domain creation: Unable to update domain data: dnsmng::remove() failed: dnsmng failed: dnsmng: Unable to open DNS config file: Permission denied System error 13: Permission denied 0: /usr/local/psa/admin/htdocs/domains/create_domain.php:150 Fix: 1. Disable the selinux. vi /etc/sysconfig/selinux SELINUX=disabled SELINUXTYPE=targeted SETLOCALDEFS=0 2. Improper permission of…

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May 19, 2010

Linux Tips & Tricks

Linux General,

TIP 1: NTP Is NTP Working? STEP 1 (Test the current server): Try issuing the following command: $ ntpq -pn remote refid st t when poll reach delay offset jitter =================================================== tock.usno.navy 0.0.0.0 16 u – 64 0 0.000 0.000 4000.00 The above is an example of a problem. Compare it to a working configuration.…

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May 15, 2010

OpenVZ Installation On CentOS 5

Virtualization,

OpenVZ Installation On CentOS 5 OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. In order to install OpenVZ, Follow the below steps, First Step , we need to add the OpenVZ repository to yum cd /etc/yum.repos.d.wget http://download.openvz.org/openvz.reporpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ The repository contains a few…

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May 15, 2010

Adding modsecurity rule for domain

Linux General,

Add the below rule in the .htaccess file. SecRuleEngine Off This will work only if you have old version of mod_security installed on the server. You cannot disable mod_security2 using .htaccess, the only way to bypass mod_security2 in Apache 2 is to manually edit httpd.conf. Create a directory with the username and the domain name,…

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May 11, 2010

Mysql Queries in Linux

Linux General,

How to resolve mysql_connect() Error Warning: mysql_connect() [function.mysql-connect]: Access denied for user ‘username’@’localhost’ (using password: YES) Possible root cause for this problem is proper privilege not assigned to the particular user. So providing proper privileges will solve this issue. $grant all privileges on “Database_Name” to “username@localhost” identified by “password” If the mysql resides in the…

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May 8, 2010

SolusVM Master Installation

Virtualization,

SolusVM Solus Virtual Manager (SolusVM) is a powerful GUI based VPS management system with full OpenVZ, Xen Paravirtualization and Xen HVM support. SolusVM allows you and your clients to manage a VPS cluster with security & ease. Requirements SolusVM requires the following specification:CentOS 5+ based linux operating systemAt least one external IP addressOpenVZ – Ensure…

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May 8, 2010

Plesk VPS Migration for plesk 9 series

Linux/Windows Support,Plesk,

1. Upload migration agent and modules to the source server. For example for Parallels Plesk Panel, there are two folders: “/usr/local/psa/PMM/agents/shared” and “/usr/local/psa/PMM/agents/PleskX”. Use the command below to copy the Migration Manager: destination ~# scp -r /usr/local/psa/PMM/agents/shared/* /usr/local/psa/PMM/agents/PleskX/* root@source:temporary_migration_directory/ 2. Login to source server and change to directory /temporary_migration_directory. Run migration agent (PleskX.pl) with parameter…

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May 8, 2010

Does DNS use TCP or UDP or both?

Linux General,

Does DNS use TCP or UDP or both? TCP is a connection-oriented protocol and it requires data to be consistent at the destination and UDP is connection-less protocol and doesn’t require data to be consistent or don’t need a connection to be established with host for consistency of data. UDP packets are smaller in size.…

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May 8, 2010

PRTG Network Monitor

Network,

PRTG Network Monitor runs 24/7 on a Windows-based machine within your network, recording network usage parameters. Recorded data is stored in a database for historic reports. The easy to use web-based user interface allows to configure the devices and sensors that you want to monitor. You can create usage reports and provide colleagues and customers…

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