Hi there!

What will happen if I edit /etc/rc.d/rc.inet2 file, and comment there such services like SAMBA fs, NFS, system logger, openssh. I think in such Linux loding time will increase? So are this services really needed by the system or I can turn them off?

thnx

Well if you comment them out, they wont be read during boot, and they wont be able for you to use. Now things like samba(smb) if you look at the rc.init2 file, most of them are "if" statements, if /etc/rc.d/rc.samba then blah blah, if there is no rc.smb file then it'll skip it and continue on.

But if you dont use these services then yea comment them out
from the first if to the fi.
example:
# Start the NAMED/BIND name server:
#if [ -f ${NET}/named ]; then
# echo -n " named"
# ${NET}/named -u daemon -g daemon
# fi

You should only turn off things you KNOW that you arnt going to use. If you arnt sure then I wouldnt mess.

Hanzerik I don't have samba and I am using reiserf fs, do I need to load NFS

If you are using NFS to share directories/files between 2 linux machines yes, if not then no you dont need NFS.

NFS is Network File System, for sharing between linux(*NIX) systems.

hanzerik, I would just post all the things here, and ask for help on which ones I don't need, and how to stop em, but is there a decent site that could give me some background info on these, and how to shut em off, and maybe what each service does and such.

I have a good idea on most, and know how to shut them off, but for the ones I don't know, and for future reference (for me and other people with questions like this) I was hoping a site to reference would be available.

Thanks

The procedures to shut them off change from distro to distro. But the slackware rc.* files are very informative, they usally have a comment before the service describing what it is used for.

I'll look around and see what i can find as far as a site that lists all the services and how to shut them down by distro.

Ok here are the basic services in /etc/rc.d/rc.inet2 .
Most of the discriptions came from: http://www.oreillynet.com/linux/cmd/

SUN RPC Portmapper:
Starts the port mapper for Remote proccedure call service, if you dont want or have these installed then comment out. The portmapper administers nfsd, mountd, ypbind/ypserv, rquotad, lockd, statd and 'r' services like ruptime and rusers. These are services used by remote clients.
Not needed by most users

Mount NFS filesystems:
Network file systems(*NIX to *NIX) think of it as samba for linux. Not needed if you dont share files between linux systems.
If you do use it portmapper needs to be running also.
Not needed by most users

Start the SYSLOGD/KLOGD daemons:
Self explanatory, logging daemons to log kernel and system messages.
I'd say keep it running.

Start the INET SuperServer:
If you want to run services controlled by inetd then leave this. This controls internet daemons such as telnetd, ftpd, etc. The only one I have used with this is Pro-ftpd(ftpd).
You can control what services inetd serves by editing /etc/inetd.conf file. If everything is commented out then inetd would be usless to have running.
Not used unless you have services in /etc/inetd.conf that you would like ppl to have access to.

Sshd:
Secure remote login, I keep it running just in case my machine locks up in X and I cant reboot locally(Has happened) I just go to another machine and connect as root and reboot.
Personal preferance on whether to run it or not.

Named: Internet domain name server
Not used unless you are running a name server.

Routed: Network routing daemon
Not familiar with it as I have never used it. I beleave it collects internet routing tables.

Start the RWHO server:
Lets other people on the network see who is logged into remote machines.
Not Used by most users.

Setting up NIS:
Network Information Service, a service that provides information, that has to be known throughout the network, to all machines on the network.
Not used by most users.

Start the various SUN RPC servers:
Mountd: NFS mount request server.
Not that familiar with it. But I would say that for most users it's not used unless you are using nfsd.

nfsd: Daemon that starts the NFS server daemons that handle client filesystem requests.
I would say most users would'nt use this unless they want to share filesystems between linux machines.

I may have missed some.

Look through the other rc files and if you see something that you dont understand do a search on http://www.google.com/linux , yes google has a linux only search engine

Thank you very much for all that info. Nice stuff.

Thanks again, hanzerik

Thanks hanzerik, it is really good info

Found a site that lists some of the rc files and gives a brief description of what they do:
http://ideaplace.org/Tester/TesterVL...f=slak_rc.d.FB