UUIDs (Universal Unique Identifier) for network interface card can be generated using the following command : uuidgen <DEVICE> Example : uuidgen eth0 Then you can add it to your NIC config file (assuming your interface is eth0) : /etc/sysconfig/network-scripts/ifcfg-eth0 Add/modify the following : UUID=<uuid>
Here is a quick how to force your network interface speed and duplex on RHEL/CentOS Linux. Make sure you have the network tools installed : yum install ethtool net-tools To apply the configuration without having to restart the network service or reboot your system, simply do this command with your settings : ethtool -s <INTERFACE>… Read More »
Having this error on your RHEL/CentOS 6 Web server or issuing “php -v” command? PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib64/php/modules/module.so’ – /usr/lib64/php/modules/module.so: cannot open shared object file: No such file or directory in Unknown on line 0 Then you probably have “php-mcrypt” module installed. Apparently, the “mcrypt.ini” file do not have… Read More »
Monitoring your temperature hardware on Linux made easy with “lm_sensors“. On CentOS or RedHat Enterprise, you can easily install the software using Yum as followed : yum install lm_sensors Then, you need to configure the software to monitor your hardware. You will have to answer several YES/no questions to probe your system. Just do the… Read More »
Getting this alert with one of your server backup policy with R1Soft? “Error Server [11] reset(): database disk image is malformed(11)” This is because the VSS snapshot mechanism on Windows allow only one snapshot partition at a time. It’s likely that you are using the MSSQL plugin to backup your databases with MSSQL installed on… Read More »
Have you recently noticed the following error message in /var/log/secure with RHEL/CentOS 6? PAM unable to dlopen(/lib64/security/pam_fprintd.so): /lib64/security/pam_fprintd.so: cannot open shared object file: No such file or directory PAM adding faulty module: /lib64/security/pam_fprintd.so There is several bug reports regarding this. I think PAM is trying to load an inexistant module. You should be concerned only… Read More »
Getting this error while attempting to restore a Symantec Ghost image from DVD (or any optical media) under WinPE? Ghost Error Application error 437 cannot read from file The main causes are the following : – Image integrity check failed due to corrupted image and/or drive read error – Source image was created using compression… Read More »
NOTE : This article has been edited since the initial post due to change on the script and latests wget updates [22/12/2016]. If you are used to the popular “SpeedTest.net” Web site to test your bandwidth connection, then here is how to use the same tool but using your Linux terminal. 1. Download the python… Read More »
Having problems connecting to your server with SSH and get this error messages in the system logs? sshd[0000]: input_userauth_request: invalid user <user> sshd[0000]: error: Could not get shadow information for <user> sshd[0000]: Failed password for invalid user <user> from 0.0.0.0 port 00000 ssh2 This mean you are missing “UsePAM” directive and/or the directive is set… Read More »
Ending up with this error while trying to join a workstation to Active Directory domain? Computer Name/Domain Changes The following error occured attempting to join the domain “domain.local”: The network path was not found. The possible cause is one of the required services for Active Directory client computer is not started. Make sure those two… Read More »