Windows 7: Windows cannot connect to the printer 0x0000007e To install the HP 4100 on a Windows 7 machine, you need to add it as a local printer first, and then change the port to the shared IP. To do this: 1. Choose to install a “network printer” and select it from the list. Hit [...] Read more – ‘HP 4100dtn and Windows 7 64 bit’.
After a WordPress update, you may experience a timeout for automatic wordpress updates. [error] 29038#0: *29 upstream timed out (110: Connection tim ed out) while reading upstream, client: x.x.x.x, server: server.com, reque st: "POST /wp-admin/update-core.php?action=do-core-upgrade HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "server.com", referrer: "http://server.com/wp-ad min/update-core.php" Why? The timeout occurs due to a permissions issue in which the [...] Read more – ‘Nginx: Upstream timed out on WordPress Automatic Update’.
What is it? The latest buzz words floating from your coworkers, vendors & tech conferences are “cloud” and “data deduplication.” Data dedup is a specialized data compression technique for eliminating coarse-grained redundant data, typically to improve storage utilization. In the deduplication process, duplicate data is deleted, leaving only one copy of the data to be [...] Read more – ‘Low Cost and Effective Data Deduplication’.
Simple, short and sweet overview of file and directory management on CentOS 5.6 Command Description pwd Print working directory cd Change directory mkdir Create a new directory cp Copy files mv Move or rename files rm Delete a file or diretory. -r enables recursion locate Locate a file specified on the file system updatedb [...] Read more – ‘Getting around Linux: Cliff Notes’.
Install And Configure OpenLDAP 2.4.25 On CentOS 5.6 Designing your Active Directory LDAP is an efficient way to store standard data such as address books, user accounts, system groups, etc. LDAP’s versatility comes from its ability to store data in a similar way as any other directory service, such as a telephone directory. It uses [...] Read more – ‘OpenLDAP on CentOS 5.6’.
Compare and install Sendmail or Postfix on CentOS 5.5 In this article, I compare postfix and sendmail as the default mail transport agent (MTA) for CentOS. Basic system administration knowledge would be an advantage and the ability to install software and edit configuration files is essential. Dovecot is used to allow users to access their [...] Read more – ‘Sendmail vs Postfix on CentOS’.
Secure file transfers in WordPress over SFTP/SSH: Install SSH2 for PHP WordPress added the ability to upgrade your installation while logged into the admin console. SFTP is a very secure replacement for FTP(S). If you make use of this feature you no longer need spend time downloading the zip file, deleting the old core installation, [...] Read more – ‘Autoupdate WordPress with SFTP’.
OS: CentOS 5.5 Kernel 2.6.18-194.32.1.el5 / MySQL 5.5.9 MySQL is one of the most popular open source database management system for the development of interactive websites. It is generally run on popular linux distributions such as CentOS, which is my distro of choice. If your site stores sensitive data in a MySQL database, you will [...] Read more – ‘Automatic MySQL Backup: Quick and Dirty’.
BackTrack is a Live Linux distribution based on SLAX that is focused purely on penetration testing. It provides over 300 different tools that can be used by security professionals or system administrators. BackTrack includes tools to perform penetration testing on systems, wireless cracking tools, network mapping tools, information gathering tools, vulnerability identification tools, forensics tools, and [...] Read more – ‘HOWTO: Install USB BackTrack on Linux or Windows’.
iPad in Business The iPad 2 has been accepted worldwide as an iconic symbol for the technological leap forward. The device is touted as “the future of business” and that it “integrates seamlessly into the enterprise.” However, we all know that once you have a device, the marketing claims and real world tests differ. Lets [...] Read more – ‘iPad 2: Business Review’.
Rsyslog is an enhanced multi-threaded syslogd. It offers support for on-demand disk buffering, reliable syslog over TCP, SSL, TLS, and RELP, writing to databases (MySQL, PostgreSQL, Oracle, and many more), email alerting, fully configurable output formats (including high-precision timestamps), the ability to filter on any part of the syslog message, on-the-wire message compression, and the [...] Read more – ‘Install Rsyslog 5.7.9 On CentOS 5.5’.
In this quick tutorial I use the hostname server.example.com with the IP address 192.168.1.1. These settings might differ on your server, so you have to replace them where appropriate. Install MySQL yum -y install mysql mysql-server Next, create the system startup links for MySQL and start the MySQL server: chkconfig --levels 235 mysqld on /etc/init.d/mysqld [...] Read more – ‘Install Apache2 With PHP5 And MySQL Support On CentOS 5.5 (LAMP) in 5 minutes’.
In order to make MySQL secure against attackers, you should: Set (Change) root password Remove anonymous users Disallow root login remotely Remove test database and access to it Reload privilege tables Run it with: /usr/bin/mysql_secure_installation Connect to MySQL database (localhost) with password via: mysql -u root -p Set root password, remove any unwanted users To [...] Read more – ‘Secure MySQL: Step-by-Step’.
Many have asked whether or not to install a 32 bit or a 64 bit version on a virtual machine, so I decided to give both a try with CentOS out of the box with a base nginx (why not apache?) installation and bench the results: 32-bit #webbench -c 5000 -t 20 http://localhost/ Webbench - Simple [...] Read more – ‘32 bit vs 64 bit CentOS Linux’.
PHP 5.3.5 + MySQL 5.5.9 + PHP-FPM + Nginx 0.9.5 Nginx (pronounced “engine-x”) is a lightweight, high-performance web server that performs significantly better than Apache under high load. PHP-FPM is an alternative PHP FastCGI implementation with additional features useful for sites of any size, especially busier sites. It should be noted that PHP-FPM is now [...] Read more – ‘Install Nginx, PHP-FPM, MySQL on CentOS 5.5’.
While configuring gitphp, I ran up against a problem where the gitphp documentation necessitates the use of posix libraries. Since I didn’t configure php with the posix dynamic extension, it was not available to php. To remedy the problem, I installed php-process via yum -y –enablerepo=remi-test install php-process.x86_64 for the 64 bit version of the [...] Read more – ‘PHP Warning: Module ‘modulename’ already loaded in Unknown on line 0’.