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| Firewalls | |
| I have created quite a few firewalls using a number of functions in the Linux kernel and a few of the standard programs that come with Linux. I have created the proxy firewall and the packet filtering firewall with and with out masquerading. Currently I have 4 known firewalls working that I set up and configured. Three in business production areas and one at home for my personal use (I use it to put my home network on the internet while being masqueraded as one machine in order to keep from paying for extra IP addresses that I do not need.) You can see my latest documentation on how I built my firewall here. Currently it uses IP-Chains and a few scripts that I put together. |  |
 | I have set up numerous email servers. Currently I am responsible for three on the internet now a few other have been setup by me and are now being maintained by others. I have set the email servers up to handle things from basic email to virtual hosting and virtual user lists. I also have set up the corresponding pop servers for email retrieval on these machines. (Where they were applicable) a quick and easy sendmail from source installation can be seen here. |
| DNS | |
| I have set up a few DNS servers on the internet currently I am supporting none of them but I have installed 6 of them from the basic secondary server to large primaries with multiple domains (40) listed beneath them. I have currently no documentation on how to set up a DNS server online but there two very good resources I can point you to set up your own DNS/bind server. Yes it will even help you if you need to set them up on a Windows NT machine (but why would you want to spend thousands of dollars on something you can get and set up for free) The greatest help on a small DNS's and quick setup is the DNS HOWTO. For a great book on everything you wanted to know about DNS is O'Reilly's DNS and BIND is an excellent book (it is even mentioned in the DNS HOWTO). |  |
| WEB Server | |
 | Apache the world leader in web server software and guess what its free. I have set up web servers for intranet use with the basic settings and no cgi scripts to a virtual web server with multiple domains running its own web page on the same machine to a virtual web server that pretends to be the one domain while leeching of f of several other web servers. Thanks MS IIS its nice that you would like to charge for a separate package when a free one exists. Yes apache also runs on Windows so don't spend the money support the apache organization. No documentation on the web server right now but apache has a great site for learning things here. |
| Windows Connectivity | |
| Samba used to connect the Windows people to the Unix environment (kind of). A great tool for getting your heterogeneous network to actually interact with each other; sharing drives, talking netbuie giving robust Unix scripts the chance to tear apart windows file in seconds rather then minutes. I have used samba to share drives so that the visual basic coders do not have to incorporate ftp of NFS into their programs just share a directory on a Linux machine and tell them to map it and amazingly everyone is happy. Until you run into the security violations of NT and win 95/98 sending passwords out both encrypted and unencrypted time to upgrade service packs or change the registry on the windows boxes. A quick way to share a few drives in a win 95 environment quickly is here. |  |
other small items