[HowtoForge] Newsletter 02/21/2013

HowtoForge Newsletter 02/21/2013
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*** Version 1.3 of the ISPConfig 3 Manual ***
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The next update of the ISPConfig 3 Manual is available in PDF format (version 1.3 for ISPConfig >= 3.0.4; Date: 10/25/2011).

Version 1.3 for ISPConfig >= 3.0.4 (Date: 10/25/2011)
Author: Falko Timme
333 pages

The manual can be downloaded from these two links:

http://www.ispconfig.org/ispconfig-3/ispconfig-3-manual/
http://www.howtoforge.com/download-the-ispconfig-3-manual


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ISPConfig Monitor App for Android Phones
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With the ISPConfig Monitor App, you can check your server status and find out if all services are running as expected. You can check TCP and UDP ports and ping your servers. In addition to that you can use this app to request details from servers that have ISPConfig installed; these details include everything you know from the Monitor module in the ISPConfig Control Panel (e.g. services, mail and system logs, mail queue, CPU and memory info, disk usage, quota, OS details, RKHunter log, etc.).

Download/Usage
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For download and usage instructions, please visit http://www.ispconfig.org/ispconfig-3/ispconfig-monitor-app-for-android/ .


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New HOWTOs:
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* Installing And Using OpenVZ On Scientific Linux 6.3
* Detailed Error Handling In Bash
* Distributed Storage Across Four Storage Nodes With GlusterFS 3.2.x On Ubuntu 12.10
* Monitoring Linux And Unix Server Temperatures With Opsview
* Installing Lighttpd With PHP5 (PHP-FPM) And MySQL Support On Fedora 18
* Scientific Linux 6.3 Samba Standalone Server With tdbsam Backend

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Installing And Using OpenVZ On Scientific Linux 6.3
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In this HowTo I will describe how to prepare a Scientific Linux 6.3 server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.

You can find the document here:
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http://www.howtoforge.com/installing-and-using-openvz-on-scientific-linux-6.3




Detailed Error Handling In Bash
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Shell scripts are often running as background processes, doing useful things without running in a visible shell. To write such scripts can be quite painful, as all errors occur out of sight as well. While log files can hold a lot of information, finding the relevant information is a bit trickier. My solution is to log only the errors with all the details to a small database. This database contains tables for the message, the corresponding stack trace and the important environment variables. I have chosen for an SQLite database in this howto, but the same principle works with other databases as well.

You can find the document here:
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http://www.howtoforge.com/detailed-error-handling-in-bash




Distributed Storage Across Four Storage Nodes With GlusterFS 3.2.x On Ubuntu 12.10
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This tutorial shows how to combine four single storage servers (running Ubuntu 12.10) to one large storage server (distributed storage) with GlusterFS. The client system (Ubuntu 12.10 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.

You can find the document here:
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http://www.howtoforge.com/distributed-storage-across-four-storage-nodes-with-glusterfs-3.2.x-on-ubuntu-12.10




Monitoring Linux And Unix Server Temperatures With Opsview
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Managing power consumption in a Datacenter is a key factor in helping keep overall business energy costs down and ensuring servers are running at optimum performance. Overheating can lead to increased costs for cooling and also runs the risk of servers crashing. Opsview server monitoring software can be used to check and alert on server temperature and also the temperature of individual components within a server (Memory, CPU and Hard drives). Thresholds and alerts can be set for when critical temperatures are exceeded, helping to keep hot-running servers in check. This blog post details how to configure Opsview to monitor the temperature of Linux and Unix servers.

You can find the document here:
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http://www.howtoforge.com/monitoring-linux-and-unix-server-temperatures-with-opsview




Installing Lighttpd With PHP5 (PHP-FPM) And MySQL Support On Fedora 18
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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 Fedora 18 server with PHP5 support (through PHP-FPM) and MySQL support. PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features useful for sites of any size, especially busier sites. I use PHP-FPM in this tutorial instead of Lighttpd's spawn-fcgi.

You can find the document here:
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http://www.howtoforge.com/installing-lighttpd-with-php5-php-fpm-and-mysql-support-on-fedora-18




Scientific Linux 6.3 Samba Standalone Server With tdbsam Backend
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This tutorial explains the installation of a Samba fileserver on Scientific Linux 6.3 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.

You can find the document here:
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http://www.howtoforge.com/scientific-linux-6.3-samba-standalone-server-with-tdbsam-backend


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