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Old 06-12-2004, 11:37 AM   #1
papitu76
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Registered: Apr 2004
Location: Pamplona (NAVARRA)
Distribution: Debian/RedHat/Mandrake
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Fine network configutarion but network problem, why?


I am using a RedHat 9. I have a small home network with 2 pcs and a DSL router that join them. The router also connects the pcs to the internet.

I had a Windows configuration and i am trying to do it in Linux. Hardware works fine becasue the windows configurations worked fine.

I have one pc with RedHat 9 and other with Mandrake 9.2.
With the one with Mandrake everything is fine. I can see everthyng in my LAN(even the other pc) and outside. It is configured as getting the ip from the DHCP is in the router. I coudnt get as static. This is the next battle.

In the RedHat9 coumputer I have configured the files in all the ways i have imagined. And it didnt work. I can ping to the router but not to the pc or outside. The files i have configured are:


/etc/sysconfig/network
NETWORKING=yes

In next two lines i have added them and erased them to try both ways.

HOSTNAME=newpc
GATEWAY=192.168.2.1
The @ip is my router ip.


/etc/sysconfig/network-scripts/ifcfg-eth0.

DEVICE=eth0
BOOTPROTO=static
tryed all as none, dhcp (taking off the next 5 lines) and even taking the whole BOOTPROTO line
IPADDR=192.168.2.2
NETMASK=255.255.255.0
NETWORK=192.168.2.0
BROADCAST=192.168.2.255
GATEWAY=192.168.2.1

ONBOOT=yes

I have put an empty line at the end of the line and i have taken it off, just in case there is any problems with it. I have heard about things like that.

In the etc/resolv.conf theres is a line 'nameserver 192.168.2.1' but i dont remember if i have keyed it in.

There is no configuration files in the directory /etc/sysconfig/networking/ wich is used by the Network Administration Tool (redhat-config-network). And I havent used it.

In the first try i used those tools but it didnt work. I got so desperate that i have reinstalled the OS.

Is there any particular thing to check on the RedHat?

What am i doing wrong?

i apreciate any help.
 
Old 06-12-2004, 12:30 PM   #2
Pete M
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Registered: Aug 2003
Location: UK
Distribution: Redhat 9 FC 3 SUSE 9.2 SUSE 9.3 Gentoo 2005.0 Debian Sid
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papitu76

This may be a starting point for you these are my files on Redhat 9 using a router for IP via DHCP

/etc/sysconfig/network
NETWORKING=yes
HOSTNAME=server

/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=dhcp
TYPE=Ethernet
USERCTL=no
PEERDNS=no

etc/resolv.conf
nameserver 192.168.0.3

The above is the IP for my local DNS server you should list the DNS servers provided by your ISP

/etc/hosts
127.0.0.1 localhost.localdomain localhost
server

Below are the results of running sbin/ifconfig from the command line, have removed my MAC address for eth0

eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
inet addr:192.168.0.3 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:30330 errors:0 dropped:0 overruns:0 frame:0
TX packets:27895 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:17937987 (17.1 Mb) TX bytes:5358315 (5.1 Mb)
Interrupt:18 Base address:0xac00 Memory:fc9e0000-fca00000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:812906 errors:0 dropped:0 overruns:0 frame:0
TX packets:812906 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:52368055 (49.9 Mb) TX bytes:52368055 (49.9 Mb)


I know this is not really what you are looking for but may be a start, after making changes I always reboot, there is probably an easier way but I've yet to find it

Pete
 
Old 06-12-2004, 12:42 PM   #3
papitu76
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Registered: Apr 2004
Location: Pamplona (NAVARRA)
Distribution: Debian/RedHat/Mandrake
Posts: 36

Original Poster
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Quote:
Originally posted by Pete M
papitu76


Pete
Thanks. i will give it a try. Not now becasue i am so late.

By the way to avoid reboot the system you can restart the services that are afected. For example in the case of network settings.

service network restart

And i usally do
ifup etho

When i dont get it even i try

service xinetd restart
service portmap restart
 
Old 06-12-2004, 04:14 PM   #4
papitu76
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Registered: Apr 2004
Location: Pamplona (NAVARRA)
Distribution: Debian/RedHat/Mandrake
Posts: 36

Original Poster
Rep: Reputation: 15
I came back and everything works fine. I guees it needed to reboot. But i am so surprised because i have always heard that Linux doesnt need to reboot to make changes in the configuration. It works, i stop thinking about it. but if anyone knows why, please teel it to me.

Thanks for the interest.
 
Old 06-12-2004, 07:58 PM   #5
urzumph
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Registered: Jan 2004
Location: Australia
Distribution: Debian
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you don't.
Redhat lets you restart network services (don't ask me how, I don't use it),
some distros let you ifdown eth0 && ifup eth0
and just about all of them let you ifconfig eth0 down && ifconfig eth0 up
 
Old 06-17-2004, 02:05 PM   #6
papitu76
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Registered: Apr 2004
Location: Pamplona (NAVARRA)
Distribution: Debian/RedHat/Mandrake
Posts: 36

Original Poster
Rep: Reputation: 15
Quote:
Originally posted by urzumph
you don't.
Redhat lets you restart network services (don't ask me how, I don't use it),
some distros let you ifdown eth0 && ifup eth0
and just about all of them let you ifconfig eth0 down && ifconfig eth0 up
The way to work with the services of Linux is by either:

1)
/etc/init.d/"service" {start|stop|restart|reload|status}
for example :
/etc/init.d/network restart
This works on any distros.

2)
And Red Hat has a shortcut

service "service" {start|stop|restart|reload|status}

I hope it helps you
 
  


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