Linux - GeneralThis Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
After I've applied fsck command on the hard disk of my Redhat 6.2 system, some services go down on the server such as TELNET,POP3, SMTP, and NAME DAEMON.
I recover that by rebooting the server(which is an improper way).
I didn't say "the services stopped" , I said "the services go down". That means although the services (POP3, sendmail, and named) are running, but when I connect to the server from a remote host, then the connection TIMEOUT.
Even I can not TELNET the server but I can ping to it!!!
Then a I reboot the machine and it goes normal again (i,e, the services run normally) and I can TELNET the server.
This problem was not exsiting until I've run fsck on the server's file system.
Which implies that this kind of system misbehave is related to either file system or memory management(as I think)!
And my question is if there is a way to prevent and recover that kind system misbehave????
Although I would consider fsck crashing your network a serious problem, you could try restarting the acual network. I beleive the scripts to do that are in /etc/sysconfig/network. It sounds like it is your network going down, not the services. I know you said that you can ping the server, but that doesn't necessarily mean their is'nt a network problem.
What I think jharris was getting at is what filesystem are you running fsck on. (i.e. what partition and what is mounted on that partition.) See if you can isolate what partition is causing the problem.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.