[Bug 894194] Re: can't access some internet servers after upgrading client to ubuntu 11.10
james@p-s-e.tk
894194 at bugs.launchpad.net
Sun Dec 4 11:44:27 UTC 2011
as requested attached are the files you wanted
note these are the files from the system I updated from 11.04 to 11.10.
do you need the same files for the fresh install system that experienced
the same problem (note this system had a static IP configured during the
install process)?
also note, that I did some further tests and tried removing the the
network settings completely and then re adding them
first as just a exact copy (ie re entering the settings via the network
manager app as a static address) - this had no effect on the problem
then secondly I tried removing the settings and, via the network manager
app, re adding the connection as a DHCP acquired one, this, after a
reboot caused the problem to go away. I then tried putting the pc back
on a static address and the problem remained gone (even after multipal
reboots)
** Attachment added: "a zip bundel of the requested files"
https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/894194/+attachment/2618923/+files/dist-upgrade.zip
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https://bugs.launchpad.net/bugs/894194
Title:
can't access some internet servers after upgrading client to ubuntu
11.10
Status in “update-manager” package in Ubuntu:
Incomplete
Bug description:
I recently upgraded my ubuntu desktop pc from 11.04 to 11.10, upon
completing the update I tried to ssh into one of my servers on the
internet (a vps, its address is vps.p-s-e.tk) however I got the
message 'no route to host'.
I then tested the connection by pinging the vps.p-s-e.tk and all pings
came back perfectly not one packet lost, I then tried nmap
sudo nmap vps.p-s-e.tk which came back with the expected ports
(including 22) marked as open
I then tried telneting to port 22 and got the same response 'Unable to connect to remote host: No route to host'
'
thinking this may have been a problem with just this pc I installed ubuntu 11.10 on a separate pc and with a fresh install got the exact same response
note, the access problem occurs for all attempts to connect to the
server ie imap smtp http https etc
the client can connect to other servers / sites on the web ie google
(note I can still access/ ssh into the server (vps.p-s-e.tk) via other
linux/windows/android pcs/devices on the same lan segment ie
10.6.111.*)
having searched around the web for a fix for this problem I came
across a series of threads that in the end lead me to totally remove
apparmor from the pc (I don't know why it had come back as I had
totally removed it long before the update to 11.10)
however this did not solve the problem
also of note is that I host a web page off my home internet connection
and it cant access that from the pc either, again nmap shows the port
as open but nothing can seem to get to it ie telnet returns 'Unable
to connect to remote host: No route to host'
-------------------
notes
the client pc address is 10.6.111.238
other pcs can ssh into the client pc (Im sshd in from my mac right now)
this problem affects all user accounts on the pc inc root
ipv6 has been disabled
---------------------
root at xr34lind2:/home/james# lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10
----------------------
root at xr34lind2:/home/james# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 10.6.111.254 0.0.0.0 UG 0 0 0 eth0
10.6.111.0 * 255.255.255.0 U 1 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
----------------------
ping examples
root at xr34lind2:/home/james# ping vps.p-s-e.tk
PING vps.p-s-e.tk (98.126.57.67) 56(84) bytes of data.
64 bytes from 98.126.57.67.static.customer.krypt.com (98.126.57.67): icmp_req=1 ttl=54 time=140 ms
From brd4-vlan399.**************** (************): icmp_seq=2 Redirect Host(New nexthop: brd3-vlan399.************* (**********))
root at xr34lind2:/home/james# ping www.google.com
PING www.l.google.com (173.194.65.147) 56(84) bytes of data.
64 bytes from ee-in-f147.1e100.net (173.194.65.147): icmp_req=1 ttl=50 time=18.3 ms
From brd4-vlan399.*********** (**************): icmp_seq=2 Redirect Host(New nexthop: brd3-vlan399.****************(***********))
some parts redacted for security reasons
----------------------
examples
>>telneting google on port 80
james at xr34lind2:~$ telnet www.google.com 80
Trying 173.194.65.104...
Connected to www.l.google.com.
Escape character is '^]'.
^]
telnet> quit
Connection closed.
>>telneting my server on port 80
james at xr34lind2:~$ telnet vps.p-s-e.tk 80
Trying 98.126.57.67...
telnet: Unable to connect to remote host: No route to host
>>telneting my server on port 22
james at xr34lind2:~$ telnet vps.p-s-e.tk 22
Trying 98.126.57.67...
telnet: Unable to connect to remote host: No route to host
>>telneting one of my other linux boxes on the local (non internet lan, it still has several vlans to it ie 10.6.111.* 10.6.112.* etc)
james at xr34lind2:~$ telnet 10.6.111.230 22
Trying 10.6.111.230...
Connected to 10.6.111.230.
Escape character is '^]'.
SSH-2.0-OpenSSH_5.5p1 Debian-4ubuntu4
^]
telnet> quit
Connection closed.
>>telneting one of the other boxes (in this case a network printer) on the local lan on port 80 (non internet lan, it still has several vlans to it ie 10.6.111.* 10.6.112.* etc)
james at xr34lind2:~$ telnet 10.6.112.243 80
Trying 10.6.112.243...
Connected to 10.6.112.243.
Escape character is '^]'.
^]
telnet> quit
Connection closed.
>>telneting my hosted web servise on port 80 (freewebs host this page set)
james at xr34lind2:~$ telnet www.p-s-e.tk 80
Trying 216.98.141.250...
Connected to wfb.zoneedit.com.
Escape character is '^]'.
^]
telnet> quit
Connection closed.
james at xr34lind2:~$
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