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View Full Version : [ubuntu] [SOLVED] Has Firestarter messed up something ?



oygle
December 16th, 2008, 02:33 PM
Have used Firestarter for a while now, no problems. I put it in 'lock' mode, and then later unlocked it. From then on, no internet. If I close down Firestarter, I get a connection again, and if I run Firestarter, but 'start firewall' , I can see no lights getting out to the net, and no browser results.

Has Firestarter messed up the iptables, or some other settings ? I have tried re-installing it, and also deleted all the policies, but still no go. I also re-installed the network manager, but same problem.

At present I can't use Firestarter. Any clues please, as to how to fix this.

Oygle

oygle
December 16th, 2008, 02:47 PM
If I start Firestarter and try to access a page on this site, syslog has these entries ..


Dec 17 00:40:08 ***** kernel: [ 3143.353998] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=55904 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.354225] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=38808 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.354402] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=43024 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.354576] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=47718 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.354780] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=36884 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.354956] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=34549 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.355131] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=59256 DPT=53 LEN=42
Dec 17 00:40:08 ***** kernel: [ 3143.355305] Unknown OutputIN= OUT=ppp0 SRC=203.220.***.*** DST=203.194.***.*** LEN=62 TOS=0x00 PREC=0x00 TTL=64 ID=46925 DF PROTO=UDP SPT=54143 DPT=53 LEN=42

The destination is the primary and secondary DNS IP address ??

oygle
December 16th, 2008, 03:25 PM
This is really weird ..

1. If I don't have Firestarter running, no internet
2. If I do have Firestarter running and firewall on - no internet
3. If I do have Firestarter running, but turn off the firewall - internet

Work that out. :confused:

oygle
December 16th, 2008, 11:32 PM
Still the same problem. :(

I'm connected to the internet directly with dialup (ppp0). I turned the power off on the hub/switch (eth0). This is what Firestarter says:

Device Type

etho Internet
ppp0 Dialup

This is when I'm connected. Why would Firestarter think that eth0 is the net ?

I try and 'start' Firestarter, and msg "Failed to start the firewall. The device eth0 is not ready.

This has got to be a networking problem, surely, but no changes were made to the network side of things.

Any clues please ?

Oygle

oygle
December 16th, 2008, 11:43 PM
Under networking settings, if I try to 'uncheck' the wired connection (eth0), networking goes and checks it again (and starts Firestarter, which stop my internet connection). :confused:

oygle
December 17th, 2008, 05:26 AM
Compared the path /etc to a backup from a few days ago. Two files had significant differences ..

/etc/firestarter/configuration

backup version ..



#-----------( Firestarter Configuration File )-----------#

# --(External Interface)--
# Name of external network interface
IF="ppp0"
# Network interface is a PPP link
EXT_PPP="on"


Current version ..



#-----------( Firestarter Configuration File )-----------#

# --(External Interface)--
# Name of external network interface
IF="eth0"
# Network interface is a PPP link
EXT_PPP="on"


/etc/network/interfaces

The following line was in the backup, but was not in the current file



auto eth0


Restored the two files, and now the network and firewall are working okay.

It pays to backup. :D