DevOps – Server and Technologies and virtualization

/DevOps - Server and Technologies and virtualization

This category deals with everything related to Linux servers and technology issues of web hosting.
Most likely this will be DevOps centered, with focus on the operational part and virtualization (VMWare product stack).

Information about mail sending PHP scripts

To be enabled to gather information about PHP emailing scripts on your server, you can add two lines to your main php.ini: [crayon-5a8f7ab5c8aea858919808/] Restart your webserver after changing the php.ini. First parameter is adding a "X-PHP-Originating-Script:" information to the mail header, stating the user name an script name sending the mail. The second one is

Bash shell vulnerable – ShellShock

Currently a new bug, named ShellShock, was announced as CVE-2014-6271 in the National Vulnerability Database. It might be even more dangerous than the SSL bug "Heartbleed" that occured some month ago. An overview, according to the web site: GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote

Checking for root kit… Dealing with false positives

As one of my Ubuntu root servers was rebooted today without my interaction I checked all of them for root kits with both rkhunter and chkrootkit. I started with the installation of rkhunter and chkrootkit with apt-get on the command prompt: [crayon-5a8f7ab5c8dc7969654371/] After that, I ran an update to the rkhunter database, [crayon-5a8f7ab5c8dcb018794258/] followed by invoking

VMWare ESXi 5.5 installation on a HP ProLiant Microserver Gen8

Please check one of my other posts, if you have performance problems after installing to ESXI 6. Introduction In this tutorial we will set-up a VMWare ESXi 5.5 as a Testlab for serving virtual machines on a small-scale server system from Hewlett Packard, a ProLiant Microserver G8 aka Gen8. Two methods are presented below.

The Red Screen of Death – Illegal Opcode Error

If you get the "Red Screen of Death" during an OS install on your HP ProLiant Microserver G8 after rebooting, reporting an "Illegal Opcode Error", do not worry! In most cases, this is just due to a wrong boot order configuration. Just follow these steps (and vary them if necessary to reflect your system configuration). Reboot

Preparing ESXi boot image for USB Flash drive

You can easily prepare any ISO file to be booted from an USB thumb drive, by following the simple steps below: Download UNetBootin from Connect a USB drive that can be deleted during this process. Make sure, no important data is currently on this stick! Start UNetBootin - no need to install Select "DiskImage" and "Type ISO" Choose

iLO on the HP ProLiant Microserver Gen8

HP Integrated Lights-Out (iLO) is a suite of embedded management technologies, supports the complete lifecycle for the ProLiant servers. Starting from initial deployment to service alerting and ongoing management, iLO is a nice tool to be informed about your server health. The Advanced suite is quite expensive, but you can get a Evaluation licence for

Google Web Starter Kit – Docker provisioning

I just read on Golem, that Google launched a boilerplate for web applications. This toolkit is based on the Google Web Fundamentals. This article will introduce the Web Fundamentals and the Google Web Starter Kit and after that heading over to how easy-install it in Ubuntu 14.04 LTS using Docker. This process will enable you to

Running Docker on Amazon EC2

As I am currently evaluating the three bigger cloud providers (Amazon AWS, Microsoft Azure and Google Cloud Platform) I came up with the idea to test how easy it would be to get Docker running on those providers. In this tutorial I deal with Amazon “AWS”, as I like them most out of the three