I have just inherited a somewhat messy network. We only have a handfull of users but some 3 dozen servers running. We also have 64 public IPs. The former admin left fairly good documentation but it still takes awhile to sort out. For instance: if I need to make a change to some service, I have to refer to one document to see which server is providing that service. Another document provides internal and externa IP information as well as DNS maping. Yet another document provides usernames and passwords. I have considered creating a relational database to document this in one place as well as make it easy to document configuration changes but I figure there are probably some applications out there already. I am, or course, looking for something free or at least inexpensive. I may still create my own but thought I could at least check out some other options if for no other reason than to get design ideas. I figure a table each for internal IP, external IP, server, service, and credentials. Interlinking all of these so I could select a server and see all of the information pertaining to it, or select a service, or IP, etc. Any advice would be greatly appreciated.
-pat