Ubuntu server works on LAN but can not get to the internet or the internet to it.

Slackyman · 05-08-2012, 11:07 AM

All of your tries, so far, are the same I'd have test and cannot figure out what's happening.
What I'd do, just to make sure that no option is left undone, is using a Live Distro and check if I can connect with it so that I can define if it's a hardware or software problem.

techyjpt · 05-08-2012, 11:32 AM

Quote:

Originally Posted by Slackyman

All of your tries, so far, are the same I'd have test and cannot figure out what's happening.
What I'd do, just to make sure that no option is left undone, is using a Live Distro and check if I can connect with it so that I can define if it's a hardware or software problem.

Okay, I will try that in about 10 minutes and see, thanks.

techyjpt · 05-08-2012, 01:23 PM

Quote:

Originally Posted by Slackyman

All of your tries, so far, are the same I'd have test and cannot figure out what's happening.
What I'd do, just to make sure that no option is left undone, is using a Live Distro and check if I can connect with it so that I can define if it's a hardware or software problem.

I am now speaking to you from mail1 server that has this issue using an Ubuntu 12.04 desktop LIVE CD.

It has to be a software issue, some config file setting that I have missed or something.

The battle continues.

Slackyman · 05-08-2012, 01:28 PM

Well, at least we know what kind of enemy to face!
Let's start from the beginning and make a checklist of what to reset do default settings included resolv.conf, network configuration and every program in use that can interfere in networking.

techyjpt · 05-08-2012, 02:04 PM

Quote:

Originally Posted by Slackyman

Well, at least we know what kind of enemy to face!
Let's start from the beginning and make a checklist of what to reset do default settings included resolv.conf, network configuration and every program in use that can interfere in networking.

Okay I will do some google searches, checklist, etc.

I have several services running like:
BIND9 acting as a forwarding only DNS
Postfix with AMAVIS, Postgrey, clamav, ...

I will start working on my list and will report back.

techyjpt · 05-08-2012, 02:41 PM

Quote:

Originally Posted by Slackyman

Well, at least we know what kind of enemy to face!
Let's start from the beginning and make a checklist of what to reset do default settings included resolv.conf, network configuration and every program in use that can interfere in networking.

I am just starting and wanted to post a list of service --status-all

Code:

~$ sudo service --status-all
 [ ? ]  amavis
 [ + ]  apache2
 [ + ]  apparmor
 [ ? ]  apport
 [ ? ]  atd
 [ + ]  bind9
 [ - ]  bootlogd
 [ + ]  clamav-daemon
 [ + ]  clamav-freshclam
 [ ? ]  console-setup
 [ ? ]  courier-authdaemon
 [ ? ]  courier-imap
 [ ? ]  courier-imap-ssl
 [ ? ]  courier-pop
 [ ? ]  courier-pop-ssl
 [ ? ]  cron
 [ + ]  cups
 [ ? ]  dmesg
 [ ? ]  dns-clean
 [ + ]  fail2ban
 [ ? ]  failsafe-x
 [ - ]  fancontrol
 [ - ]  grub-common
 [ ? ]  hostname
 [ ? ]  hwclock
 [ ? ]  hwclock-save
 [ ? ]  irqbalance
 [ ? ]  killprocs
 [ - ]  lm-sensors
 [ ? ]  module-init-tools
 [ ? ]  mysql
 [ ? ]  network-interface
 [ ? ]  network-interface-security
 [ ? ]  networking
 [ + ]  ntp
 [ ? ]  ondemand
 [ ? ]  plymouth
 [ ? ]  plymouth-log
 [ ? ]  plymouth-splash
 [ ? ]  plymouth-stop
 [ + ]  postfix
 [ + ]  postgrey
 [ ? ]  pppd-dns
 [ ? ]  procps
 [ ? ]  rc.local
 [ ? ]  resolvconf
 [ - ]  rsync
 [ ? ]  rsyslog
 [ ? ]  saslauthd
 [ ? ]  screen-cleanup
 [ ? ]  sendsigs
 [ ? ]  shorewall
 [ + ]  spamassassin
 [ + ]  ssh
 [ ? ]  stop-bootlogd
 [ ? ]  stop-bootlogd-single
 [ - ]  sysstat
 [ ? ]  udev
 [ ? ]  udev-finish
 [ ? ]  udevmonitor
 [ ? ]  udevtrigger
 [ ? ]  ufw
 [ ? ]  umountfs
 [ ? ]  umountnfs.sh
 [ ? ]  umountroot
 [ - ]  urandom
 [ ? ]  wpa-ifupdown
 [ - ]  x11-common
~$

I thought this might be a good place to start. If you guys have other suggestions about how to tell which of these might cause issues so I can reset them.