I had Slackware 9.1 installed for the last almost 10 months and it was working beautifully! I even had upgraded the KDE to (I think) ver 3.2.1 and compiled kernel 2.4.24. Also I had installed all kinds of Greek TTFs (since I live in Greece) and had done all the necessary localization. And mosdt importand I could connect to the Internet through Dialup (kppp) and also connect other machines (Win98) to the Internet by using the Slack box as Server and forwarding the other machines' request to the internet (sharing the line). I also had setup a simple firewall (forwarding and masquerading) by just editing the /etc/rc.firewall file included in the installation.
Then I decided to uprade to Slack 10 which was just released and I had it down loaded on two iso CDs.
I followed the simple instructions from the included README file and the whole thing went smoothly. I had to tweek only a few things like 1) edit the httpd.conf file to correct the <mod_> directory, 2) to get ALSA to work properly I renamed the old asound.state file and then from a console window run 'alsamixer' to unmute the channels and then run 'alsactl store' to store the new controls.
I was really huppy but then my problems stared:
1) I could not browse the Intenet. I used kppp to do a dial up connection like before but when I started up mozilla (or any ather browser), I am getting the message (at the botom) "Resolving hostname blah blah ...", it keeps trying and than reports that it fails to find the URL. After a while the kppp crashes and the error I get is that the pppd receives echo from itself. I still cannot make it work properly. I still does the same things.
2) I thought that maybe it was the kernel and the problem would be solved if I coimpiled a new kernel. So, I decided to install kernel-2.6.7 (included on the 2nd installation Cd). I installed the source and tried to compile a new kernel. As soon as I run 'make xconfig" I got error messages and I could not even configure the kernel. So, I thought that it was maybe the compiler (it was gcc-3.3.4) and I installed gcc-3.4.0 from the 2nd installation CD. I tried to configure the kernel agein (make xconfig, make menuconfig) and the result was the same. Errors! i could not run kernel configuration. Something seems to be missing or som kind of incompatibility. It seems upgrading from Slack 9.1 to Slack 10 is not a very good idea.

Does anybody know what is happening?

regards

Resolving hostname blah blah ...", it keeps trying and than reports that it fails to find the URL

edit /etc/resolv.conf and put here your ISP nameserver

As soon as I run 'make xconfig" I got error messages

Please post the error if you expect suggestion to fix that

I had the proper nameserver IP (my ISP's) in "/etc/resolv.conf", but still the problem continued. It might be something else. maybe something to do with the firewall. I watched the kppp details and it seemed that there was traffic going out, but nothing coming in, or the other way around.
I will write down the error message from the 'make xconfig' attempt, as soon as I get home.

regards

Ok, here is the errors I get when I try to execute 'make xconfig' (the same thing happens if I try 'make menuconfig"):

I get the following response

HOSTCC scripts/basic/fixedp
HOSTCC scripts/basic/split-include
in file included from /usr/include/linux/erno.h:4,
from /usr/include/bits/errno.h:25,
from /usr/include/errno.h:36,
from scripts/basic/split-include.c:26:
/usr/include/asm/errno.h:4:31: asm-generic/errno.h: ??? ??????? ?????? ???????
make[1]: *** [scripts/basic/split-include] Error 1
make: *** [scripts_basic] Error 2

I want to point out that I have made sure that the files /usr/include/asm and /usr/include/linux are soft links pointing to /usr/src/linux-2.6.7/include/asm-i386 and /usr/src/linux-2.6.7/include/linux respectively (as they should).
If I change the soft links to point to /usr/src/linux-2.4.26/.... then there is no problem and the 'make xconfig' starts properly.

Anybody Anyideas?

regards

I don't have those directories as symlinks and I never touched them when compiling kernels.

For ppp thing, try running pppsetup as root.

There are three possible sources of problem: (i) modem, (ii) pppd, (iii) proxy, nameserver, etc.

I don't think (i) is the problem since you observe the outward traffic.

(ii) can be checked by /sbin/ifconfig - as you may know. If you see the ppp0 entry, that's fine. Otherwise, you may want to use 'pppsetup' (as suggested by gbonvehi) and modify /etc/resolv.conf. (You could use minicom and manual pppd here.) I don't think this is the problem either, because you see the connection okay (though I know nothing about kppp), right?

If (iii) is the problem, it should be easy to fix it.