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Free book: GNU/Linux Advanced Administration |
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| Free, downloadable book (PDF) covering topics like Linux network, server and data administration, Linux kernel, security, clustering, configuration, tuning, optimization, migration and coexistence with non-Linux systems. A must read for any serious Linux sysadmin. read more... |
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| | permapage | score:9990 | -linportal, February 8, 2010 |
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Virtio: A Linux I/O virtualization framework |
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| With all the virtualization schemes running on top of Linux, how do they exploit the underlying kernel for I/O virtualization? The answer is virtio, which provides an efficient abstraction for hypervisors and a common set of I/O virtualization drivers. Discover virtio, and learn why Linux will soon be the hypervisor of choice. read more... |
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| | permapage | score:9986 | -solrac, February 8, 2010 |
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Iptables Tutorial: Limit connections per IP |
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How do you restrict the number of connections used by a single IP address to my server for port 80 and 25 using iptables?
You need to use the connlimit modules which allows you to restrict the number of parallel TCP connections to a server per client IP address (or address block).
This is useful to protect your server or vps box against flooding, spamming or content scraping. read more... |
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| | permapage | score:9983 | -nixcraft, February 8, 2010 |
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Tutorial: USB-Over-IP on OpenSUSE 11.2 |
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| This tutorial shows how to set up a USB-over-IP server with OpenSUSE 11.2 as well as a USB-over-IP client (also running OpenSUSE 11.2). The USB/IP Project aims to develop a general USB device sharing system over IP network. To share USB devices between computers with their full functionality, USB/IP encapsulates "USB I/O messages" into TCP/IP payloads and transmits them between computers. USB-over-IP can be useful for virtual machines, for example, that don't have access to the host system's hardware - USB-over-IP allows virtual machines to use remote USB devices. read more... |
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| | mail this link | permapage | score:9959 | -falko, February 5, 2010 |
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Linux/BSD physical security |
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| Securing a computer goes beyond more than just using strong passwords. You should consider what happens if an unauthorized person gains physical access to your computer. If the only security feature protecting your data from an unauthorized person is a user account password, then you have not taken enough steps to protect your computer and your data. This article presents all the steps you could take to enhance the physical security of your Linux- or BSD-powered computer. read more... |
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| | permapage | score:9955 | -finid, February 5, 2010 |
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Tutorial: Fedora 12 Samba werver with tdbsam |
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| This tutorial explains the installation of a Samba fileserver on Fedora 12 and how to configure it to share files over the SMB protocol as well as how to add users. Samba is configured as a standalone server, not as a domain controller. In the resulting setup, every user has his own home directory accessible via the SMB protocol and all users have a shared directory with read-/write access. read more... |
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| | permapage | score:9940 | -falko, January 30, 2010 |
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Shardana Antivirus Rescue Disk |
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| Do you have problems with viruses and malware? Do you like to test different Linux distribution on your PC? Do you like to have tools and utilities available to check your PC, to partition your hard disk or to rescue data? This is perhaps the best tool you have ever seen and the best stuff for your USB Stick. Shardana Antivirus Rescue Disk Utility (Sardu) is software that can produce an ISO or an IMA anti-virus bootable CD, comprehensive collections of utilities, the most popular distributions of Linux Lite, and the best known Windows PE. In this article we’ll describe how to install more the 20 Live Systems on your USB Stick in 4 steps. read more... |
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| | mail this link | permapage | score:9939 | -fn-eagle, February 1, 2010 |
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Tutorial: Enable Compiz Fusion on Ubuntu 9.10 (NVIDIA GeForce FX 5200) |
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| This tutorial shows how you can enable Compiz Fusion on an Ubuntu 9.10 (Karmic Koala) desktop (the system must have a 3D-capable graphics card - I'm using an NVIDIA GeForce FX 5200 here). With Compiz Fusion you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop. read more... |
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| | permapage | score:9935 | -falko, November 18, 2009 |
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Tutorial: OpenSUSE 11.2 Samba server with tdbsam |
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| This tutorial explains the installation of a Samba fileserver on OpenSUSE 11.2 and how to configure it to share files over the SMB protocol as well as how to add users. Samba is configured as a standalone server, not as a domain controller. In the resulting setup, every user has his own home directory accessible via the SMB protocol and all users have a shared directory with read-/write access. read more... |
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| | permapage | score:9928 | -falko, January 13, 2010 |
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Ubuntu 9.10 server tutorial |
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| This tutorial shows how to prepare an Ubuntu 9.10 (Karmic Koala) server for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more. read more... |
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| | permapage | score:9928 | -falko, November 2, 2009 |
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VBoxHeadless and VirtualBox 3.1: Run virtual machines on headless Ubuntu 9.10 |
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| This guide explains how you can run virtual machines with Sun VirtualBox 3.1 on a headless Ubuntu 9.10 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI. read more... |
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| | permapage | score:9928 | -falko, February 2, 2010 |
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Install and Configure OpenLDAP on Ubuntu 9.10 |
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| The configuration of OpenLDAP got a bit (more) complicated. cn=config is still used, but when installing the packages from the repositories only a skeleton configuration of openldap is installed. You're not asked anymore to provide a password when the package is installed and issuing the "dpkg-reconfigure slapd" only resets openldap to the skeleton configuration. You will have to set up the openldap database, root dn and acl's yourself using the root account (or sudo) in order to configure openldap. Here is how I configured openldap in Karmic Koala, but I do not issue any guarantee that this setup will suit your needs or works for you as it worked for me. read more... |
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| | mail this link | permapage | score:9925 | -falko, December 7, 2009 |
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Back up MySQL with mylvmbackup on Debian |
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| mylvmbackup is a Perl script for quickly creating MySQL backups. It uses LVM's snapshot feature to do so. To perform a backup, mylvmbackup obtains a read lock on all tables and flushes all server caches to disk, creates a snapshot of the volume containing the MySQL data directory, and unlocks the tables again. This article shows how to use it on a Debian Lenny server. read more... |
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| | permapage | score:9924 | -falko, February 1, 2010 |
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Install mod_geoip for Apache2 on Ubuntu 9.10 |
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| This guide explains how to set up mod_geoip with Apache2 on an Ubuntu 9.10 system. mod_geoip looks up the IP address of the client end user. This allows you to redirect or block users based on their country. You can also use this technology for your OpenX (formerly known as OpenAds or phpAdsNew) ad server to allow geo targeting. read more... |
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| | permapage | score:9919 | -falko, January 29, 2010 |
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Tutorial: Install Lighttpd, PHP5, MySQL on CentOS 5.4 |
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| Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a CentOS 5.4 server with PHP5 support (through FastCGI) and MySQL support. read more... |
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| | permapage | score:9917 | -falko, January 25, 2010 |
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Set up an Apache2 SSL Vhost on Ubuntu 9.10 |
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| This article explains how you can set up an SSL vhost under Apache2 on Ubuntu 9.10 and Debian Lenny so that you can access the vhost over HTTPS (port 443). SSL is short for Secure Sockets Layer and is a cryptographic protocol that provides security for communications over networks by encrypting segments of network connections at the transport layer end-to-end. We use the mod_ssl Apache module here to provide strong cryptography for Apache2 via SSL by the help of the Open Source SSL toolkit OpenSSL. read more... |
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| | mail this link | permapage | score:9912 | -falko, January 22, 2010 |
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GlusterFS Tutorial: Data striping on Ubuntu 9.10 |
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| This tutorial shows how to do data striping across four single storage servers (running Ubuntu 9.10) with GlusterFS. The client system (Ubuntu 9.10 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA. read more... |
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| | mail this link | permapage | score:9909 | -falko, January 28, 2010 |
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Set up ProFTPd, TLS on Ubuntu 9.10 |
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| FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to set up ProFTPd with TLS on an Ubuntu 9.10 server. read more... |
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| | permapage | score:9907 | -falko, January 20, 2010 |
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Tutorial: Install VMware Server 2 on Ubuntu 9.10 |
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| This tutorial provides step-by-step instructions on how to install VMware Server 2 on an Ubuntu 9.10 desktop system. With VMware Server you can create and run guest operating systems ("virtual machines") such as Linux, Windows, FreeBSD, etc. under a host operating system. This has the benefit that you can run multiple operating systems on the same hardware which saves a lot of money, and you can move virtual machines from one VMware Server to the next one (or to a system that has the VMware Player which is also free). read more... |
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| | mail this link | permapage | score:9900 | -falko, December 23, 2009 |
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Tutorial: Install Apache 2, PHP5, MySQL on Ubuntu 9.10 |
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| LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on an Ubuntu 9.10 server with PHP5 support (mod_php) and MySQL support. read more... |
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| | permapage | score:9899 | -falko, November 27, 2009 |
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