Hi... I've have problem with my file and mail server. I have a Centos 4 with file and mail server for my office network, which is compose with Linux (xandros 4) and windows (2k) work stations. The problem is that suddenly some linux machines can't access the the remote files on the server, but they can see the server in the file manager, but there is no files. When I enter as root, there is no problem... I can access remote files and devices in the server or in other machines (shared folder, files or devices). Windows machines can access anywhere (server and others work stations, linux and windwos); some linux machine can access anywhere too, but other can't access the server but can access shared resources. I think it may be a access permition issue, but this happens from one day to another, and in at least 3 linux machines... so, where can i look for solution in my server?
Other thing is the mail server (outgoing) doesn't work, when i try to send a mail through the mail server (the same file server machine), it search for the outgoing server (192.168.0.10) and can't establish connection. A linux user friend told me to shutdown the machine and disconect the power cord for a minute and then restart the system. It worked for a time, but then it start the same problem and can only be solved by shooting down the system, and that is a bad solution. The mail server use to work fine, 24/7.
These 2 problems start when a electric crash burned out the router, and then when i replaced it the start to happen, but router configuration is fine and doesn't seem to have a problem.
Please help me to identify or solve the problem. Thanks everyone