[SOLVED] problem connecting to the internet.

mobinskariya · 09-10-2009, 06:22 AM

i am new to slackware.. i have been using ubuntu for almost 2 years and installed slackware 12.2 for the first time today .. there was no need to configure the networks in ubuntu and everything was already configured that i didnt take much pain in learning how it works.. so iam new to networking and linux too(disadvantage of using ubuntu, i think).also i read a little of slackbook that, way of arranging startup scripts are totally different from that of ubuntu.

i have a utstarcom router through which i connect to the internet(dhcp enabled)..my problem is when i plugin my lan cable after booting, i cant connect to internet but can ping my router.. if i plug it before the booting slackware, i can connect to the internet..also i want to disable the dhcp discover during the boot time..it takes a lot of time when not connected to lan. i dont know whether my description is confusing..please let me know whether i should describe it some other way..

tanks in advance
mobin

/dev/me · 09-10-2009, 06:52 AM

If you plug in your cable after booting Slackware, you need to restart your network service.

As root:

Code:

/etc/rc.d/rc.inet1 restart

And if you want to disable DHCP during boot, well my methid would be to just edit /etc/rc.d/rc.inet1.conf

Code:

# Config information for eth0:
IPADDR[0]=""
NETMASK[0]=""
#USE_DHCP[0]="yes"
USE_DHCP[0]=""
DHCP_HOSTNAME[0]=""

And then either add static values (you may need to enable this on your router) or run a DHCP request manually when you want to connect.
As root:

Code:

dhcpcd eth0

Setting up static is a bit more work than DHCP, but you only need to do it once. In order for your machine to connect to the internet you need at least three things:
An IP address
A gateway
Nameservers

This can be fine tuned with things like subnet masks, but if you don't specify those the machine will fall back to defaults which should be good enough for most purposes.
Anyway, you can define your IP address in /etc/rc.d/rc.inet1.conf or define it manually by running:

Code:

ifconfig eth0 {address}

You can define your gateway in /etc/rc.d/rc.inet1.conf or define it manually by running:

Code:

route add default gw {router_address}

And the nameservers are defined in /etc/resolv.conf. Chances are they are already defined by previous runs of dhcpcd:

Code:

cat /etc/resolv.conf
# Example: uses opendns
nameserver 208.67.222.220
nameserver 208.67.220.222

mobinskariya · 09-10-2009, 07:32 AM

thanks. it helped.is there any way that when i plugin my lan cable, it automatically gets its ip address other than giving the commands to restart the services(as in ubuntu)?

/dev/me · 09-10-2009, 07:48 AM

Well, I don't use it myself, but there is ifplugd.

And now you probably are wondering how on earth you install a SlackBuild

EDIT: Oh! I didn't see a buildscript for Slack 12.2 (or 13 for that matter). I don't know if this matters much, as I've found by trial and error that you can install 12.1 packages on 12.2. But I'm not qualified to comment on the risks involved. No guarantees.
Alternatively you can create your own slackbuild or build from source. I usually do the latter.