Category Archives: Servers

Linux : Install Webmin from YUM repository

Webmin and Usermin can be installed and updated directly through YUM. To achieve this, we need to setup manually the repository. First, create the .repo file for YUM : vi /etc/yum.repos.d/webmin.repo Copy, paste and save the following : [Webmin] name=Webmin Distribution Neutral#baseurl=http://download.webmin.com/download/yum mirrorlist=http://download.webmin.com/download/yum/mirrorlist enabled=1 Save the PGP key : wget http://www.webmin.com/jcameron-key.asc Import the key :… Read More »

OpenVPN : Unable to obtain Session ID XML-RPC: TimeoutError or 400 Bad Request

Using OpenVPN Server on Linux as well as Windows machine, you may encounter this error trying to connect a client : Unable to obtain Session ID from “vpn.domain.tld”, port(s)=443: XML-RPC: TimeoutError Unable to obtain Session ID from “vpn.domain.tld”, port(s)=443: XML-RPC: ‘400’, ‘Bad Request’ This happen because HTTPS (SSL) port (TCP-443) is closed either on the… Read More »

Windows : Asp.NET test page

Just like php, you can create a test page in order to verify if .NET is installed and working properly. The following will also display the running version. Simply create plain text file using Notepad or your favorite text editor : test.aspx And insert this code : <%@ Page Language=”VB” %> <script runat=”server”> Protected Sub… Read More »

Linux : mptbase ioc0 WARNING IOC is in FAULT state

Inside system logs (/var/log/messages), you may see some message like this on a system running a RAID controller (this one is from a PERC 5/i on a Dell PowerEdge server) : mptbase: ioc0: WARNING – IOC is in FAULT state (1600h)!!! mptbase: ioc0: WARNING – Issuing HardReset from mpt_fault_reset_work!! mptbase: ioc0: Initiating recovery mptbase: ioc0:… Read More »

Web : zend_mm_heap corrupted

You may notice this error in the Apache logs : zend_mm_heap corrupted Try to enable or increase this parameter either in your Apache config, htaccess or php.ini file : output_buffering = 4096

Active Directory : You do not have sufficient privileges to delete Organizational Unit

Working in Active Directory Users and Computers (ADUC) trying to delete an Organizational Unit (OU), you get the following error : Active Directory Domain Services You do not have sufficient privileges to delete < Organizational Unit >, or this object is protected from accidental deletetion. By default, you need to uncheck the box “Protect object… Read More »