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In this article I will describe how you can monitor your Debian Lenny server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services. http://www.howtoforge.com/server-monitoring-with-munin-and-monit-on-debian-lenny |
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This tutorial shows how to set up a standalone storage server on Fedora 12. Instead of NFS, I will use GlusterFS here. The client system 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. http://www.howtoforge.com/creating-an-nfs-like-standalone-storage-server-with-glusterfs-on-fedora-12 |
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This guide explains how you can run virtual machines with Sun xVM VirtualBox 3.1.x on a headless Debian Lenny 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. http://www.howtoforge.com/vboxheadless-running-virtual-machines-with-virtualbox-3.1.x-on-a-headless-debian-lenny-server |
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Wireshark is a network protocol analyzer (or "packet sniffer") that can be used for network analysis, troubleshooting, software development, education, etc. This guide shows how to install and use it on an Ubuntu 9.10 desktop to analyze the traffic on the local network card. http://www.howtoforge.com/network-analysis-with-wireshark-on-ubuntu-9.10 |
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AutoMySQLBackup is a shell script that lets you take daily, weekly and monthly backups of your MySQL databases using mysqldump. It can back up multiple databases, compress the backups, back up remote databases, and email the logs. This tutorial explains how to install and use it on an Ubuntu 9.10 server. http://www.howtoforge.com/creating-mysql-backups-with-automysqlbackup-on-ubuntu-9.10 |
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This tutorial describes how to set up database replication in MySQL using an SSL connection for encryption (to make it impossible for hackers to sniff out passwords and data transferred between the master and slave). MySQL replication allows you to have an exact copy of a database from a master server on another server (slave), and all updates to the database on the master server are immediately replicated to the database on the slave server so that both databases are in sync. This is not a backup policy because an accidentally issued DELETE command will also be carried out on the slave; but replication can help protect against hardware failures. http://www.howtoforge.com/how-to-set-up-mysql-database-replication-with-ssl-encryption-on-centos-5.4 |
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Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on an Ubuntu 9.10 server with PHP5 support (through FastCGI) and MySQL support. http://www.howtoforge.com/installing-cherokee-with-php5-and-mysql-support-on-ubuntu-9.10 |
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Ksplice Uptrack is a subscription service that lets you apply 100% of the important kernel security updates released by your Linux vendor without rebooting. Ksplice Uptrack is freely available for the desktop versions of Ubuntu 9.10 Karmic and Ubuntu 9.04 Jaunty. This tutorial shows how to install and use it on an Ubuntu 9.10 desktop. http://www.howtoforge.com/installing-kernel-security-updates-without-reboot-with-ksplice-uptrack-on-ubuntu-9.10-desktop |
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Mary, the daughter of a friend is in college: her Windows XP laptop constantly reboots and, we suspect, has a bad hard drive. The system will boot a live CD (Ubuntu 9.10 Karmic Koala Desktop), and data on the hard drive can be read. During boot, the live CD identifies disk errors and tries unsuccessfully to repair them. http://www.howtoforge.com/ntfs-disk-recovery |
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This guide explains how you can run virtual machines with Sun VirtualBox 3.1.x on a headless OpenSUSE 11.2 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. http://www.howtoforge.com/vboxheadless-running-virtual-machines-with-virtualbox-3.1-on-a-headless-opensuse-11.2-server |
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