dladm – Display Link status,speed,duplex,statistics,MTU

June 19, 2009 · Filed Under Networking, Solaris 10 · 2 Comments 

In the past we have to mess around with the NDD commands and stats tools like kstat to find the network link status, speed, duplex information in Sun Solaris. With Solaris 10, this has become much easier with the dladm utility.

dladm is the admin utility for Data-Link Interface which helps to display informarthe like Link Status (UP/DOWN), Speed, Duplex, MTU, VLAN Tagged and crucially statistics of network traffic on each of the interfaces historically as well as in real time. dladm can also configure and admin Link Aggregation on multiple NICs which we will not focus here.
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PCP script to find open TCP ports and PIDs related in Solaris

May 12, 2009 · Filed Under Networking, Solaris 10, Solaris 8, Solaris 9, security · 3 Comments 

PCP is a very useful security and adminitration script that can help you quickly find Processes (PIDs) having particular TCP Port(s) open, TCP ports open by specific PIDs or even list all the TCP Ports open by all PIDs running on your system.

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Enable/Disable IP Forwarding in Solaris 10 without reboot

April 24, 2008 · Filed Under Networking, Solaris 10 · 1 Comment 


IP packet forwarding is the process of routing packets between network interfaces on one system. A packet arriving on one network interface and addressed to a host on a different network is forwarded to the appropriate interface.

In Solaris 10, IP Forwarding can be enabled or disabled using the routeadm & ifconfig commands as against the ndd commands in Solaris 9 and earlier. The advantage is the change dynamic and real-time and the change persist across reboot unlike the ndd command.

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Solaris 10 – Change IP Address without reboot

March 19, 2008 · Filed Under Networking, Solaris 10 · 4 Comments 

Adding or editing the IP address on a Solaris 10 server is different from the previous versions of the OS (Solaris 9, Solaris 8 etc).

In the previous versions of the Solaris Operating System, you need to edit the /etc/hosts file and add/edit the entry for the IP address and the hostname.

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