Missing memory in Solaris 10 with ZFS
Ever wondered all the precious memory installed on your server has gone? Among many other reasons, if you are running Solaris 10 and use ZFS file system then there may be your answer.
Solaris 10
List LUNs attached to HBA/Disk controllers in Solaris 10
As a system administrator, every now and then you may come across situations wherein your SAN admin presents you some storage (LUNS) and you can’t find where the hell has it gone. The following are some of the ways to list the LUNS presented on a controller or all the controllers on the server.
Mount an ISO image in a Solaris Zone
There is no direct way to mount an ISO image onto a Solaris Zone. However, you can mount an ISO image onto the global zone (the server which hosts the zone) and then present it onto the guest zone.
tcpdrop – Drop TCP connections in Solaris
tcpdrop is a free utility to drop an established TCP connection in Sun solaris. It is a port of the tcpdrop utility from FreeBSD and openBSD. tcpdrop doesn’t do what it says on the tin and nothing more but does it very well. tcpdrop works in Solaris 10,9,8
Install Sybase Perl module in Solaris 10
Installing Perl modules in Sun Solaris is not as straight forward but is not very difficult as well. Perl module installations in Sun Solaris needs GNU Make rather than the default make tool installed. And, requires using perlgcc to build the Makefile.PL than the default perl binary.
dladm – Display Link status,speed,duplex,statistics,MTU
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 …
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PCP script to find open TCP ports and PIDs related in Solaris
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.
Enable/Disable IP Forwarding in Solaris 10 without reboot
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 …
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Control/Modify dhcpagent configuration in Sun Solaris
Do you you DHCP to get the IP Address for your Solaris Server or workstation then its worth understanding what your DHCP Agent by default requests for from the DHCP server and help avoid certain network issues like “unknown” hostname issue as I’ve descrbed here. The DHCP Agent by default requests for the Subnet Mask …
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Fix: No hostname when using DHCP in Sun Solaris 8/9/10
If you are using DHCP to receive IP Address for your Sun Solaris system, you may end up with no hostname assigned to the system. This can be confirmed when there is no hostname at the prompt or if the output for the command “hostname” is as follows: # hostname unknown or the /etc/hosts file …
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