Category: UNIX

UNIX tips and tricks

IPsec, Solaris 10 and non-global zones

by jim • 9 December 2009 • Comments Off

I have been working on joining a data-center-only VPN to be able to talk to another data-center-only VPN other by creating a IPsec tunnel between a server in each data center. I chose to use the Sun Fire V490s that…

Solaris package repository

by jim • 2 December 2009 • Comments Off

A Solaris package repository is similar to a yum repository: a place to get Solaris SVR4 packages in datastream format. It is mostly a straightforward process to setup a repository, but I have found a few gotchas. All these examples…

xsysstats and rpc.rstatd

by jim • 29 August 2009 • 1 Comment

What is xsysstats? xsysstats is a rpc.rstatd client which graphically displays near real time performance statistics of the running unix kernel. The following statistics are available: cpu packets ipackets (packets in) opackets (packets out) pagei (page in) pageo (page out)…

The cost of bleeding edge?

by jim • 17 July 2009 • Comments Off

I’ve just finished updating my workstation at home and at work to Fedora 11. The impetuous was to cut down on the number of VMs that were running on my machine at home and reduce the number of packages I…

sendmail as a SMTP-AUTH client

by jim • 7 July 2009 • Comments Off

For a long time now, I’ve wanted to be able to generate mail from my computer at home, but because I’m behind a dynamic DHCP address, it is hard to have a resolvable hostname. My hosting provider would not accept…

IPSca and CentOS

by jim • 3 June 2009 • 3 Comments

IPSca is a SSL certificate provider which provides zero cost Educational SSL Certificates, mainly for .edu sites. I tried them out for two different websites at work. The certificates work great, even with having to install a SSLCertificateChainFile entry in…

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