Linux / Unix
I can help you with your Linux & Unix needs: I've worked with Unix and (more recently) Linux systems for 20 years so have the experience to address your needs. As you'll see from the rest of this site I specialise in email systems, I do however stretch beyond that to provide systems administration, troubleshooting, programming and networking. I'm familiar with many flavours of Unix and Linux including Solaris, Red Hat / CentOS, SuSE, OpenBSD, FreeBSD. I typically work remotely over SSH to provide you with solutions, but can also work on-site.
Systems Administration (Sysadmin)
I work regularly with large and small systems, both standalone and in more complex setups (clusters, server farms etc.); I also have the networking knowledge to know how these interact.
"Rent a Sysadmin"
For business continuity to cover staff absences or shortages I can provide on- or off-site sysadmin services: My normal consulting skills mean I'm up and running in an organisation very fast.
Troubleshooting
I work with a broad range of operating systems and packages, so I have a good sense of where to look when things go wrong. I also know when I'm out of my depth and I'm not afraid to say so - I'll be happy to explore your needs and say if I can help.
Networks
I have experience with complex network setups including firewalls, routers & switches. I also know my way around wireless networks, whether this be setting them up or troubleshooting them.
I can provide assistance with network services, such as DNS, NFS, DHCP etc.
If you need to optimise your network or its applications, I can help. I am also familiar with scaling technologies - load balancing, server farms, clusters, NASes and the like.
Programming
I can offer programming skills in C and shell scripting languages (Bourne Shell, Bash, C shell). Whether you wish to fix, enhance or modify an existing program, please take the opportunity to discuss your requirements with me.