[SOLVED] DNS problem

ember1205 · 10-20-2014, 12:49 PM

And all is working well now?

jennyj · 10-20-2014, 12:58 PM

Yes. I didnt have to connect and then reconnect to my wired router in order to get access to 192.168.1.254 this time. Thank you. Also, I think torbrowser loaded quicker too. At least my DNS in torbrowser still works!

ember1205 · 10-20-2014, 01:01 PM

Great to hear... Glad you got it fixed.

jennyj · 10-20-2014, 01:03 PM

But my DNS still doesnt work though. Sorry for the misunderstanding.

ember1205 · 10-20-2014, 01:04 PM

Is it still trying to contact that 10.x address? Your /etc/resolv.conf should point you to the wired router - true? 192.168.2.x?

jennyj · 10-20-2014, 01:11 PM

Code:

$ cat /etc/resolv.conf
nameserver 192.168.2.123

yeh its still doing the 10.x thing :-(

jennyj · 10-20-2014, 01:14 PM

hey is information from an strace command any use to you?

Code:

$ strace -e open host -vvv google.com
open("/etc/ld.so.cache", O_RDONLY)      = 3
open("/usr/lib/liblwres.so.80", O_RDONLY) = 3
open("/usr/lib/libdns.so.88", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0", O_RDONLY) = 3
open("/usr/lib/libbind9.so.80", O_RDONLY) = 3
open("/usr/lib/libisccfg.so.82", O_RDONLY) = 3
open("/usr/lib/libisc.so.84", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libcap.so.2", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libxml2.so.2", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY) = 3
open("/usr/lib/libGeoIP.so.1", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libkrb5.so.3", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libk5crypto.so.3", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libcom_err.so.2", O_RDONLY) = 3
open("/usr/lib/x86_64-linux-gnu/libkrb5support.so.0", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libkeyutils.so.1", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libresolv.so.2", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libz.so.1", O_RDONLY) = 3
open("/usr/lib/libisccc.so.80", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libattr.so.1", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/liblzma.so.5", O_RDONLY) = 3
open("/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY) = 3
open("/usr/share/locale/en_GB.UTF-8/libdst.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB.UTF-8/LC_MESSAGES/libdst.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/libdst.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libdst.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB.UTF-8/libisc.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB.UTF-8/LC_MESSAGES/libisc.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/libisc.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libisc.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/lib/ssl/openssl.cnf", O_RDONLY) = 6
open("/usr/lib/x86_64-linux-gnu/openssl-1.0.0/engines/libgost.so", O_RDONLY) = 6
open("/usr/share/locale/en_GB.UTF-8/libdns.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en_GB.UTF-8/LC_MESSAGES/libdns.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/libdns.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/usr/share/locale/en/LC_MESSAGES/libdns.cat", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/etc/resolv.conf", O_RDONLY)      = 6
Trying "google.com"
;; connection timed out; no servers could be reached
--- SIGTERM (Terminated) @ 0 (0) ---

ember1205 · 10-20-2014, 01:21 PM

You need to look for any files on your machine that are setting that string. Try this either as root or via a sudo:

grep -Ril "10.42.0.1" /

Anything that it outputs would be a file that you should look at to determine its contents. Or, post the filename with its contents here.

jennyj · 10-20-2014, 01:45 PM

I ran:

Code:

sudo grep -sxRil "10.42.0.1" / --exclude-dir=/home/

-x without this it listed the numbers without the dots (eg. 104201)
-s without this it gave all the error messages for the files it couldnt read etc
--exclude-dir=/home/ I dont think it will be in my home directory

Let me know if you think I shouldnt run any of the flags that I added. It hasnt returned anything yet..

Im afraid to say I think Im losing steam for today.. This grep looks like it might take a few hours. Im very grateful for all your help. Can we continue tomorrow if youre still up for it?

ember1205 · 10-20-2014, 01:50 PM

You could also exclude /tmp and /var/log - neither of those should contain anything configuration-related.

I won't be able to help much tomorrow until probably around this time. There's plenty of others here that I'm sure will be chiming in to help as well.

jennyj · 10-20-2014, 01:59 PM

OK. Thats fair enough. Like I said, I am very grateful for the help you have provided so far. Youre very sharp for a "LQ Newbie"! Why havent they bumped you up the ladder a few ranks? Would clicking yes to "Did you find this post helpful?" on all your posts do that?

So, in the meanwhile I am running:

Code:

sudo grep -sxRil "10.42.0.1" / --exclude-dir=/home/ --exclude-dir=/var/log --exclude-dir=/tmp

ember1205 · 10-20-2014, 02:09 PM

I -am- a newbie to LQ (LinuxQuestions), I'm just not new to networking, operating systems, or Linux in particular.

I'm supposing that this site is like most and they will change my status based purely on the number of posts I make.

ember1205 · 10-20-2014, 02:11 PM

Another comment... I believe the "-x" tells your instance of grep to use the enclosed characters to form a complete match and not match in "pieces".

ntubski · 10-20-2014, 02:25 PM

Quote:

Originally Posted by jennyj

-x without this it listed the numbers without the dots (eg. 104201)

Quote:

Originally Posted by ember1205

I believe the "-x" tells your instance of grep to use the enclosed characters to form a complete match and not match in "pieces".

Right, you'll be wanting "F" instead of "x". That tells grep to look for just the plain string instead of treating it as a pattern where dot means "any character".

Quote:

I'm supposing that this site is like most and they will change my status based purely on the number of posts I make.

"newbie" status ends at 30 posts. http://www.linuxquestions.org/questi...faq#faq_newbie

jennyj · 10-27-2014, 11:54 AM

Reinstallation of my OS was on the cards but then..
I noticed that bitmask has a standalone bundle:
https://dl.bitmask.net/linux/#instal...d-alone-bundle

I downloaded it and found that it had the bitmask-root command which is said to fix all bitmask-related internet woes. So:

Code:

$ sudo pkexec Bitmask-linux64-0.6.1-4/apps/eip/files/bitmask-root
firewall stop
bitmask-root: done
$ ping www.google.com
PING www.google.com (74.125.230.146) 56(84) bytes of data.
...
...
64 bytes from lhr08s05-in-f18.1e100.net (74.125.230.146): icmp_req=7
ttl=55 time=53.0 ms
^C
--- www.google.com ping statistics ---
508 packets transmitted, 508 received, 0% packet loss, time 507727ms
rtt min/avg/max/mdev = 24.913/43.983/55.628/6.687 ms

IT WORKS!!! WAHOO!

Hey, if you'll excuse the pun, I wonder if its possible to mark this DNS thread as "REsolved"..?