Posts Tagged ‘ Server ’

Nslookup resolves address but ping is unable to resolve hostname on Unix server

November 17, 2010
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I came across this issue on my newly built Solaris 10 server. I was able to ping a remote machine by Ip address, but not by its hostname. This indicated that I had the correct route and gateway. Using nslookup and dig I verified that the DNS servers were resolving the hostname to IP...
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Posted in Software | 1 Comment »

Booting up Solaris 10 from a SAN replicated LUN on a different Sun SPARC server

July 9, 2010
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The quickest way to recover from a total disaster is to have some sort of replication implemented. There are two different methods of real-time replication, hardware and software. My experiences with software replication such as Symantec Veritas Volume replicator for AIX was not pleasing. It required constant maintenance and troubleshooting. The best is hardware...
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Posted in Hardware, Software | 7 Comments »

How to change the IP address in Solaris 10

February 25, 2010
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Here is a list of files that you need to edit when changing the IP address of an interface in Solaris 10. /etc/hosts /etc/hostname.interface-name /etc/nodename /etc/defaultrouter /etc/resolv.conf /etc/netmasks Add the ip address and server name to the host file. vi /etc/hosts 10.0.0.10 server-name Select the interface you want, your server may have more than...
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How to create a virtual disk with the Dell OpenManage Server Admnistrator.

April 30, 2009
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Open the Dell OpenManage Server Administrator Click on System – Storage – PERC 5/E Adapter (PCI Slot 1) – Connector 0 (RAID) – Enclosure – Physical Disks. This will display all the Disk Drives in the right window. Under the column Available RAID DISK Space, you should be able to determine if there is...
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Posted in Hardware | 2 Comments »

TCP ports opened on firewall for Dell Remote Access Card – DRAC.

April 28, 2009
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The Dell Remote Access Card (DRAC) communicates via the following ports: 22 Secure Shell, SSH 23 Telnet 80 http 443 https 161 SNMP 3668 Virtual Media Server 5900 Console Redirection 5901 Console Redirection If you have a firewall in between you and the server, ensure that you have the above ports opened.
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How to find file that contains a specific word in Linux and Unix.

April 23, 2009
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The find and grep command is very handy when searching for files that contains a specific word. Both the find and grep commands are universal in Linux and Unix and the syntax is very similar. Below is an example. find /home/andrew -type f -exec grep -H ‘networks’ {} \; This will display all files...
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How to mount a volume with a different mount point in Aix ?

February 28, 2008
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I ran across a situation where my volume was running low on free disk space. In order to prevent my application from crashing, I had to either expand the volume or move the application files to a larger volume. Well, in this case the volume was created with Veritas and I wanted to move...
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Sendmail-largeboxes.conf displays warning for large mailboxes

November 5, 2007
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The sendmail-largeboxes.cof file is used to display warnings for large mailboxes.  The default configuration is hard coded to consider 40MB+ as large.  Users will receive email warnings that they have exceeded the 40MB mailbox size.  You can change the default 40MB to a different value.  On my Fedora Core 4 installation the file is...
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