To search and replace across multiple text file on a Linux/Unix system, use the following command : find . -name “*.extension” -print | xargs sed -i ‘s/search_for_text/replace_with_text/g’ So, as example, let’s assume you want to replace an IP address in multiple Bind zone file (using the extension .hosts) and replace IP address 10.10.1.1 for 192.168.1.1… Read More »
Using VMware Server on RedHat Enterprise Linux, you may expect this error in log file /var/log/secure : PAM unable to dlopen(/lib/security/pam_unix2.so PAM [error: /lib/security/pam_unix2.so: cannot open shared object file: No such file or directory] PAM adding faulty module: /lib/security/pam_unix2.so Actually, this error does not seem to affect the functionality of VMware Server. To work around… Read More »
On Windows Vista/7, there is no GUI option to rename a power plan. You must use the “powercfg” command line utility to achieve this task. Open the command line (Start, Run – or type directly in the bottom search bar) : cmd Then, in the command prompt, type this command to list all power plan… Read More »
On a multi DC (Windows 2003 – 2008) Active Directory, you may encounter the following NTDS event : Active Directory failed to create an index for the following attribute. Attribute identifier: 591789 Attribute name: msFVE-RecoveryGuid A schema cache update will occur 5 minutes after the logging of this event and will attempt to create an… Read More »
After upgrading OpenX AdServer from version 2.8.5 to 2.8.7, you may experience a problem with statistics – OpenX engine is no longer recording stats from campaign delivery. This is a good idea to have a look at the log file, located at <openx>/var/debug.log. You probably will see this warning : OX-maintenance-4ea48eac6cd00 [info] Running Maintenance Engine… Read More »
Windows text editors add a tailing character ( ^M ) for line break. To get a real Unix flat file without theses characters, simply run the following command in terminal : tr ‘\r’ ‘\n’ < Windows_Text_File.txt > Unix_Text_File.txt
Edit /boot/loader.conf and set the following value to ” 1 ” : hint.acpi.0.disabled=”1″
Using the full size desktop Apple keyboard, simply hold down SHIFT key + Page up or Page down. With a MacBook Pro, there is no such keys (Page up/Page down)… Just hold down function key ( fn ) + SHIFT + ARROW UP and/or DOWN.
Since RoundCube version 0.6, you may expect the following error when trying to delete a message : Server Error : UID COPY : Error in IMAP command received by server. You probably using Courier-IMAP daemon. As commented in “main.inc.php” configuration file for default storage folders, you need to modify the folder name according to the… Read More »
Trying to update BIOS on Dell PowerEdge server running CentOS Linux may fail to complete with no further explanation even if all software requirement has been met do do the upgrade from the OS. This is because Dell does not recognize CentOS (which is a 100% RedHat binary compatible) as a supported OS (such as… Read More »