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Below are a collection of popular Linux/Unix forums which I found to enjoy a strong community backing. Linux Questions.org – One of the foremost Linux forums which has a very strong community following. I may add that it is one of the most active Linux/Unix forums I have come across in recent times. Ubuntu Forums [...]
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The following is a list of about 100 of the best OpenSource Applications, that actually help make Linux more usable for people. It is my hope that this list shows potential Linux users that there really is a large, effective, productive and usable range of free, OpenSource applications. For existing Linux users (like myself), I [...]
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The Windows XP Prefetcher reduces the amount of time it takes Windows to boot and can speed up the launch of applications. It does this by monitoring which programs initialize when the Operating System is booted, then in the future, fetches them quickly via trace files. Although prefetcher is enabled by default, we can easily [...]
Windows boot, difference, enable, file, machine, memory, personal, sessions, speed, system, systems, what, Windows,
Apache allows the use of .htaccess files which can change certain configuration options in a per-directory basis. By default .htaccess files are named .htaccess but it is possible to use a different name either for the whole server, or on a virtual host by virtual host basis. This post looks at how to change the [...]
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If you run your own Linux server here are some tips on server hardening, liberally stolen from the CFS security GUI script for cPanel/WHM, that I have become only too familiar with since yesterday: On your firewall (you do have one don’t you?) check the incoming MySQL port and if 3306 is open, close it. [...]
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Cause: Computer is booting from a non-bootable source. Computer hard disk drive is not properly setup in BIOS. Corrupt NTLDR and/or NTDETECT.COM file. Misconfiguration with the boot.ini file. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32. New hard disk drive being added. Corrupt boot sector / master boot [...]
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hange the hostname on a running system On any Linux system you can change its hostname with the command ‘hostname‘ (surprised?)… Here are some quick usages of the command line hostname: hostname without any parameter it will output the current hostname of the system. hostname –fqd it will output the fully qualified domain name (or [...]
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Normally from my experience if we take the most ‘expensive’ 10 queries and we optimize them properly (maybe running them more efficiently, or maybe they are just missing a simple index to perform properly), then we will immediately see the result on the overall mysql performance. Then we can iterate this process and optimize the [...]
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Fist you need to download somewhere on your system the tar.gz package from mysql (I will assume you have done this inside /usr/local/src/), mysql-5.0.51a-linux-i686-glibc23.tar.gz from the closest mysql mirror to your location. If you are running a different architecture, please download the appropriate file. Next, let’s create the mysql user and group: groupadd mysql useradd [...]
MySQL architecture, boot, config, configuration, configure, create, difference, file, folders, group, install, mysql, mysqladmin, roots, scripts, stop, system, systems, useradd, usr,
Install Libevent 1.3e I will assume that you don’t have libevent installed already on your system. Your system might already have libevent installed, but normally you will have a very old version (for ex. on debian etch the packaged libevent is 1.1a that was released in 2005); in this case you will want to remove [...]
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Memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. Memcached is a great piece of software that was designed with performance in mind. Still, memcached has little (or should I say none?) security features built-in. If we run [...]
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Normally when you add a new IP to a network interface in a RedHat based system you create a file ifcfg-eth0:x in /etc/sysconfig/network-scripts/. For example: /etc/sysconfig/network-scripts/ifcfg-eth0:0 DEVICE=eth0:0 ONBOOT=yes BOOTPROTO=static IPADDR=192.168.0.100 NETMASK=255.255.255.0 NETWORK=192.168.0.0 BROADCAST=192.168.0.255 TYPE=Ethernet Similar to the above example you can create several aliases. But what if you have to add a lot of IPs [...]
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If you have seen an error like “Fatal Error: PHP Allowed Memory Size Exhausted†in apache logs or in your browser, this means that PHP has exhausted the maximum memory limit. This post will show 3 different ways on how you can increase the php memory limit and also explain when you should use them. [...]
Tech Guru accesses, activation, apache, byte, check, compilation, compiler, configuration, configure, difference, edit, edition, folders, functionality, hosts, htaccess, Identify, linux, logs, memory, scripts, server, servers, system, systems, virtualizer, what,
Cisco PIX Firewall BasicsThe following diagram shows a multi-port PIX connected to various networks. Cisco PIX Firewall Basics PIX terminology: we generally refer to the user segment as the Inside subnet. The interface connected to the Internet router is the outside subnet. As shown, we probably have DMZ (De-Militarized Zone) subnet, the subnet where we [...]
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Introduction to phpBB phpBB is a stable, open-source, bulletin board script available as a free download from phpbb.com [2]. It allows you to set up an unlimited number of forums and categories. Users, moderators and user groups with varying permissions can be created. In short, it provides everything you’d expect of a bulletin board service. [...]
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