You might encountered the following message after creating a bridge interface and try to bring it up on RHEL/CentOS Linux : ifup br0 Device br0 does not seem to be present, delaying initialization. The common error in such case is usually because you mistype the ” TYPE= ” parameter, bridge must start with a… Read More »
You might noticed this error trying to log into a Linux/Unix system through SSH or SFTP : This account is currently not available. The two main possible causes : – The shell does not exist or have been removed; – Typo error when entering the shell path at the user creation. Have a look at… Read More »
Using the Windows DHCP server, you might noticed this message trying to do an IP reservation with the MAC address on your DHCP scope : The unique Identifier you have entered may not be correct. Do you want to use this Identifier anyway? And then : The DHCP server received a message from a client… Read More »
Here is a quick tutorial regarding how to install a source RPM on RHEL/CentOS Linux. 1. Prepare the build environment and get the dependencies. Do those following command under your root home directory : yum install rpm-build redhat-rpm-config gcc make mkdir -p ~/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS} 2. Put the source rpm file at the root of your home directory… Read More »
NTFS filesystem store a lot of information that might not be required all the time and can significantly improve the I/O performance when disabled, especially under a virtualized environment. To disable Last Access Time Stamp on Windows, you need to manually edit the registry. 1. Open the registry editor : Start > Run > regedit.exe 2.… Read More »
Getting this error message trying to start vsFTPd on FreeBSD? 500 OOPS: vsftpd: not configured for standalone, must be started from inetd Then you missed the important part shown at the end of “vsftpd.conf”! # If using vsftpd in standalone mode, uncomment the next two lines: listen=YES background=YES Just uncomment “listen=YES”, “background=YES” and start the… Read More »
As you might noticed on latest version of Windows, ICMP requests are blocked by default with the built-in firewall. Use this simple command to enable echo request : netsh firewall set icmpsetting 8 enable
You might encounter this issue when installing Plesk 11 with Microsoft SQL Server on Windows : Unable to install the “mssql2008_configurator-1.0.noarch” package. The following could cause the installation failure: 1) mssql2008_configurator-1.0.noarch: No suitable solutions were found for the “msi45 >= 4.5.0000.0000” dependency. 2) The dependency for “msi45 >= 4.5.0000.0000” required by the “mssql2008_configurator-1.0.noarch” package could… Read More »
PHP SSH support does not come out of the box yet. The shortest and effortless path to get it working is the following procedure. DISCLAIMER : php-SSH is still beta and not enabled by default. Use only if you know what you’re doing! 1. Install the development components to build the module : apt-get install… Read More »
Running large and high demanding hypervisor connected to SAN storage require jumbo (large MTU) frames to enhance I/O performance to the guests virtual machines. To achieve that, you need to use the command line since vSphere console do not allow to do such thing. 1. Stop all guest virtual machine and put the hypervisor in… Read More »