OpenSSH: ssh-add / ssh-agent Command Set Maximum Lifetime In Seconds

Posted on in Categories , last updated April 6, 2012

I‘m using a Mac OS X and combination of ssh-agent+ssh-add to adds RSA or DSA identities to the authentication agent. ssh-agent provides me a secure way of storing the private key. However, I’d like to expire identities added to the agent within half an hour. How do I set lifetime of identities added to the agent under Unix / Linux / BSD / Apple OS X operating systems?

Ubuntu Linux Set Iscsi Initiator

Posted on in Categories last updated July 2, 2010

ISCSI is a network protocol standard that allows the use of the SCSI protocol over TCP/IP networks. How do I setup Iscsi Initiator under Ubuntu Linux? How do I format and connect to an iSCSI volume under Ubuntu Linux? How do I store VMware or Virtualbox virtual machine images using iscsi storage?

Linux: Find Out If a Particular Driver / Feature Compiled Into Running Kernel or Not

Posted on in Categories , , , , , last updated October 10, 2008

Q. I know how to find out information about compiled driver under FreeBSD kernel. But, how do I find out if a Particular feature, driver or filesystem support is compiled into my running Linux kernel or not? How do I find out if DMA support is compiled into my kernel?