Category Archives: Servers

nTop : Install from rpmforge failed to start

After upgrading to latest version or update your existing well working nTop, you may expect this error when starting nTop by doing “service ntop start”. # service ntop start Starting ntop:    Processing file /etc/ntop.conf for parameters… Mon Nov 24 23:56:36 2008  NOTE: Interface merge enabled by default Mon Nov 24 23:56:36 2008  Initializing gdbm databases… Read More »

Dell : Install OpenManage for RHEL/CentOS

1. Set up the Dell OpenManage Repository at http://linux.dell.com/repo/hardware, like this: wget -q -O – http://linux.dell.com/repo/hardware/latest/bootstrap.cgi | bash 2. Install OpenManage Server Administrator: yum install srvadmin-all Other possible choices are : srvadmin-base, srvadmin-webserver, srvadmin-storageservices 3. Make sure the TCP port 1311 is open in IPtables. If not, add this line : -A INPUT -p tcp… Read More »

FTP : File transfer failed but permission correct

FTP Server complain about this error: Command:    STOR upload_test.txt Response:    150 Ok to send data. Response:    451 Failure writing to local file. Error:    File transfer failed   The operation failed to complete even if file permission are correct.  Most of the time on unix ftp servers such as vsFTPd, this may indicate that the user’s… Read More »

Remote Desktop : stop working after Windows Update

This happen after updating to Windows XP Service Pack 3 or Windows Server 2003 SP2: Microsoft added a security feature to disable RDP if Windows Firewall is disabled. Enable Windows Firewall and add exception for Remote Desktop Protocol (TCP-3389) to get it working. (Also make sure that the Windows Terminal Service is started if problem… Read More »

Linux : How to create Ramdisk

Here is a procedure to create ramdisk on Linux. 1. Look for ramdisk devices : ls -la /dev/ram* 2. Increase size by adding the kernel parameter in the grub config file (this example assume you want a 512 Mb ramdisk) : ramdisk_size=512000 3. Format the ramdisk : mke2fs -m 0 /dev/ram0 4. Mount the ramdisk… Read More »