On Mon, 26 Jan 2009 07:21:05 -0700, Christopher A. Williams wrote:
On Mon, 2009-01-26 at 08:47 -0500, Tom Horsley wrote:
On Mon, 26 Jan 2009 23:23:49 +1100 David Timms wrote:
Tom Horsley wrote:
On Fri, 23 Jan 2009 13:32:08 -0500 McGuffey, David C. wrote:
Update: Intermittent dns is still present.
I'd strongly suspect this is NM getting the resolv.conf file correct on initial connect, then screwing it up on subsequent DHCP lease renewal.
I get the no entries in /etc/resolv.conf directly after logging in (workaround - an NM entry with static IP, and dns). Is there a
more
permanent fix for Fedora 10 (upgraded from F9) ?
In /etc/sysconfig/network-scripts/ifcfg-eth0
I have the line:
PEERDNS=no
which (in theory) prevents NM from doing anything at all to the resolv.conf file when acting on that interface (of course you then have to make sure you set resolv.conf yourself).
I thought NM had a know bug where it did not yet respect the
PEERDNS=no
entry.
Has this been fixed?
The only (and most unfortunate) way I have been able to reliably keep
my
resolf.conf file from getting waxed by NM has been to set it as immutable. A _very_ nasty way of doing things, but it does work.
Cheers,
Chris
Problem persists. Have had several batches of patches pushed through yum auto update, but nothing concerning NM to fix this problem.
I set PEERDNS=no with no affect.
I set /etc/resolv.conf to a workable solution and then removed the write bits and set it immutable. I get errors in /var/log/messages about it, but the behavior is still the same. After a reboot, all is OK. After a while, dns dies. Restarting NM brings it back to life...then it dies a few minutes later. As long as someone is actively accessing the net, dns seems to stay up. But give it a few minutes of idle time and something causes it to stop. Here is a snapshot of /var/log/messages before, during, and after a NM restart. Can anyone figure out what is going wrong with dns?
Feb 2 21:23:45 desk NetworkManager: <WARN> nm_signal_handler(): Caught signal 15, shutting down normally. Feb 2 21:23:45 desk NetworkManager: <info> (eth0): now unmanaged Feb 2 21:23:45 desk NetworkManager: <info> (eth0): device state change: 8 -> 1 Feb 2 21:23:45 desk NetworkManager: <info> (eth0): deactivating device (reason: 36). Feb 2 21:23:45 desk NetworkManager: <info> eth0: canceled DHCP transaction, dhcp client pid 2034 Feb 2 21:23:45 desk NetworkManager: <WARN> nm_named_manager_remove_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 21:23:45 desk NetworkManager: <WARN> check_one_route(): (eth0) error -34 returned from rtnl_route_del(): Sucess#012 Feb 2 21:23:45 desk avahi-daemon[2071]: Withdrawing address record for 192.168.1.2 on eth0. Feb 2 21:23:45 desk avahi-daemon[2071]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.2. Feb 2 21:23:45 desk avahi-daemon[2071]: Interface eth0.IPv4 no longer relevant for mDNS. Feb 2 21:23:45 desk NetworkManager: <info> (eth0): cleaning up... Feb 2 21:23:45 desk NetworkManager: <info> (eth0): taking down device. Feb 2 21:23:45 desk avahi-daemon[2071]: Withdrawing address record for fe80::207:e9ff:fef2:b64d on eth0. Feb 2 21:23:45 desk NetworkManager: <info> disconnected by the system bus. Feb 2 21:23:45 desk nm-dispatcher.action: Error in get_property: The name org.freedesktop.NetworkManager was not provided by any .service files Feb 2 21:23:46 desk NetworkManager: <info> starting... Feb 2 21:23:46 desk NetworkManager: <WARN> nm_generic_enable_loopback(): error -17 returned from rtnl_addr_add():#012Sucess#012 Feb 2 21:23:46 desk NetworkManager: <info> eth0: driver is 'e100'. Feb 2 21:23:46 desk NetworkManager: <info> Found new Ethernet device 'eth0'. Feb 2 21:23:46 desk NetworkManager: <info> (eth0): exported as /org/freedesktop/Hal/devices/net_00_07_e9_f2_b6_4d Feb 2 21:23:50 desk NetworkManager: <info> (eth0): device state change: 1 -> 2 Feb 2 21:23:50 desk NetworkManager: <info> (eth0): bringing up device. Feb 2 21:23:50 desk kernel: e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex Feb 2 21:23:50 desk kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready Feb 2 21:23:50 desk kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Feb 2 21:23:50 desk NetworkManager: <info> (eth0): preparing device. Feb 2 21:23:50 desk NetworkManager: <info> (eth0): deactivating device (reason: 2). Feb 2 21:23:50 desk NetworkManager: <info> (eth0): carrier now ON (device state 2) Feb 2 21:23:50 desk NetworkManager: <info> (eth0): device state change: 2 -> 3 Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) starting connection 'System eth0' Feb 2 21:23:50 desk NetworkManager: <info> (eth0): device state change: 3 -> 4 Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started... Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete. Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting... Feb 2 21:23:50 desk NetworkManager: <info> (eth0): device state change: 4 -> 5 Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful. Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete. Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started... Feb 2 21:23:50 desk NetworkManager: <info> (eth0): device state change: 5 -> 7 Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Beginning DHCP transaction. Feb 2 21:23:50 desk dhclient: Internet Systems Consortium DHCP Client 4.0.0 Feb 2 21:23:50 desk dhclient: Copyright 2004-2007 Internet Systems Consortium. Feb 2 21:23:50 desk dhclient: All rights reserved. Feb 2 21:23:50 desk dhclient: For info, please visit http://www.isc.org/sw/dhcp/ Feb 2 21:23:50 desk dhclient: Feb 2 21:23:50 desk NetworkManager: <info> dhclient started with pid 4747 Feb 2 21:23:50 desk dhclient: Listening on LPF/eth0/00:07:e9:f2:b6:4d Feb 2 21:23:50 desk dhclient: Sending on LPF/eth0/00:07:e9:f2:b6:4d Feb 2 21:23:50 desk dhclient: Sending on Socket/fallback Feb 2 21:23:50 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. Feb 2 21:23:50 desk NetworkManager: <info> DHCP: device eth0 state changed (null) -> preinit Feb 2 21:23:52 desk dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 Feb 2 21:23:52 desk avahi-daemon[2071]: Registering new address record for fe80::207:e9ff:fef2:b64d on eth0.*. Feb 2 21:23:53 desk dhclient: DHCPOFFER from 192.168.1.1 Feb 2 21:23:53 desk dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67 Feb 2 21:23:53 desk dhclient: DHCPACK from 192.168.1.1 Feb 2 21:23:53 desk NetworkManager: <info> DHCP: device eth0 state changed preinit -> bound Feb 2 21:23:53 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) scheduled... Feb 2 21:23:53 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) started... Feb 2 21:23:53 desk NetworkManager: <info> address 192.168.1.2 Feb 2 21:23:53 desk NetworkManager: <info> prefix 24 (255.255.255.0) Feb 2 21:23:53 desk NetworkManager: <info> gateway 192.168.1.1 Feb 2 21:23:53 desk NetworkManager: <info> hostname 'desk' Feb 2 21:23:53 desk NetworkManager: <info> nameserver '192.168.1.1' Feb 2 21:23:53 desk NetworkManager: <info> domain name 'seclab.net' Feb 2 21:23:53 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled... Feb 2 21:23:53 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) complete. Feb 2 21:23:53 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) started... Feb 2 21:23:53 desk avahi-daemon[2071]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.2. Feb 2 21:23:53 desk avahi-daemon[2071]: New relevant interface eth0.IPv4 for mDNS. Feb 2 21:23:53 desk avahi-daemon[2071]: Registering new address record for 192.168.1.2 on eth0.IPv4. Feb 2 21:23:53 desk dhclient: bound to 192.168.1.2 -- renewal in 80417 seconds. Feb 2 21:23:54 desk NetworkManager: <WARN> nm_named_manager_add_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 21:23:54 desk NetworkManager: <info> (eth0): device state change: 7 -> 8 Feb 2 21:23:54 desk NetworkManager: <WARN> nm_named_manager_add_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 21:23:54 desk NetworkManager: <info> Policy set 'System eth0' (eth0) as default for routing and DNS. Feb 2 21:23:54 desk NetworkManager: <info> Activation (eth0) successful, device activated. Feb 2 21:23:54 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete. Feb 2 22:56:55 desk NetworkManager: <WARN> nm_signal_handler(): Caught signal 15, shutting down normally. Feb 2 22:56:55 desk NetworkManager: <info> (eth0): now unmanaged Feb 2 22:56:55 desk NetworkManager: <info> (eth0): device state change: 8 -> 1 Feb 2 22:56:55 desk NetworkManager: <info> (eth0): deactivating device (reason: 36). Feb 2 22:56:55 desk NetworkManager: <info> eth0: canceled DHCP transaction, dhcp client pid 4747 Feb 2 22:56:55 desk NetworkManager: <WARN> nm_named_manager_remove_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 22:56:55 desk NetworkManager: <WARN> check_one_route(): (eth0) error -34 returned from rtnl_route_del(): Sucess#012 Feb 2 22:56:55 desk avahi-daemon[2071]: Withdrawing address record for 192.168.1.2 on eth0. Feb 2 22:56:55 desk avahi-daemon[2071]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.2. Feb 2 22:56:55 desk avahi-daemon[2071]: Interface eth0.IPv4 no longer relevant for mDNS. Feb 2 22:56:55 desk NetworkManager: <info> (eth0): cleaning up... Feb 2 22:56:55 desk NetworkManager: <info> (eth0): taking down device. Feb 2 22:56:55 desk avahi-daemon[2071]: Withdrawing address record for fe80::207:e9ff:fef2:b64d on eth0. Feb 2 22:56:55 desk NetworkManager: <info> disconnected by the system bus. Feb 2 22:56:56 desk NetworkManager: <info> starting... Feb 2 22:56:56 desk NetworkManager: <WARN> nm_generic_enable_loopback(): error -17 returned from rtnl_addr_add():#012Sucess#012 Feb 2 22:56:56 desk NetworkManager: <info> eth0: driver is 'e100'. Feb 2 22:56:56 desk NetworkManager: <info> Found new Ethernet device 'eth0'. Feb 2 22:56:56 desk NetworkManager: <info> (eth0): exported as /org/freedesktop/Hal/devices/net_00_07_e9_f2_b6_4d Feb 2 22:57:00 desk NetworkManager: <info> (eth0): device state change: 1 -> 2 Feb 2 22:57:00 desk NetworkManager: <info> (eth0): bringing up device. Feb 2 22:57:00 desk kernel: e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex Feb 2 22:57:00 desk kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready Feb 2 22:57:00 desk kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Feb 2 22:57:00 desk NetworkManager: <info> (eth0): preparing device. Feb 2 22:57:00 desk NetworkManager: <info> (eth0): deactivating device (reason: 2). Feb 2 22:57:00 desk NetworkManager: <info> (eth0): carrier now ON (device state 2) Feb 2 22:57:00 desk NetworkManager: <info> (eth0): device state change: 2 -> 3 Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) starting connection 'System eth0' Feb 2 22:57:00 desk NetworkManager: <info> (eth0): device state change: 3 -> 4 Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started... Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete. Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting... Feb 2 22:57:00 desk NetworkManager: <info> (eth0): device state change: 4 -> 5 Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful. Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete. Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started... Feb 2 22:57:00 desk NetworkManager: <info> (eth0): device state change: 5 -> 7 Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Beginning DHCP transaction. Feb 2 22:57:00 desk dhclient: Internet Systems Consortium DHCP Client 4.0.0 Feb 2 22:57:00 desk dhclient: Copyright 2004-2007 Internet Systems Consortium. Feb 2 22:57:00 desk dhclient: All rights reserved. Feb 2 22:57:00 desk dhclient: For info, please visit http://www.isc.org/sw/dhcp/ Feb 2 22:57:00 desk dhclient: Feb 2 22:57:00 desk NetworkManager: <info> dhclient started with pid 13377 Feb 2 22:57:00 desk dhclient: Listening on LPF/eth0/00:07:e9:f2:b6:4d Feb 2 22:57:00 desk dhclient: Sending on LPF/eth0/00:07:e9:f2:b6:4d Feb 2 22:57:00 desk dhclient: Sending on Socket/fallback Feb 2 22:57:00 desk dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6 Feb 2 22:57:00 desk NetworkManager: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. Feb 2 22:57:00 desk NetworkManager: <info> DHCP: device eth0 state changed (null) -> preinit Feb 2 22:57:01 desk avahi-daemon[2071]: Registering new address record for fe80::207:e9ff:fef2:b64d on eth0.*. Feb 2 22:57:02 desk dhclient: DHCPOFFER from 192.168.1.1 Feb 2 22:57:02 desk dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67 Feb 2 22:57:02 desk dhclient: DHCPACK from 192.168.1.1 Feb 2 22:57:02 desk NetworkManager: <info> DHCP: device eth0 state changed preinit -> bound Feb 2 22:57:02 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) scheduled... Feb 2 22:57:02 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) started... Feb 2 22:57:02 desk NetworkManager: <info> address 192.168.1.2 Feb 2 22:57:02 desk NetworkManager: <info> prefix 24 (255.255.255.0) Feb 2 22:57:02 desk NetworkManager: <info> gateway 192.168.1.1 Feb 2 22:57:02 desk NetworkManager: <info> hostname 'desk' Feb 2 22:57:02 desk NetworkManager: <info> nameserver '192.168.1.1' Feb 2 22:57:02 desk NetworkManager: <info> domain name 'seclab.net' Feb 2 22:57:02 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled... Feb 2 22:57:02 desk NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP Configure Get) complete. Feb 2 22:57:02 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) started... Feb 2 22:57:02 desk avahi-daemon[2071]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.2. Feb 2 22:57:02 desk avahi-daemon[2071]: New relevant interface eth0.IPv4 for mDNS. Feb 2 22:57:02 desk avahi-daemon[2071]: Registering new address record for 192.168.1.2 on eth0.IPv4. Feb 2 22:57:02 desk dhclient: bound to 192.168.1.2 -- renewal in 84449 seconds. Feb 2 22:57:03 desk NetworkManager: <WARN> nm_named_manager_add_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 22:57:03 desk NetworkManager: <info> (eth0): device state change: 7 -> 8 Feb 2 22:57:03 desk NetworkManager: <WARN> nm_named_manager_add_ip4_config(): Could not commit DNS changes. Error: 'Could not replace /etc/resolv.conf: Operation not permitted#012' Feb 2 22:57:03 desk NetworkManager: <info> Policy set 'System eth0' (eth0) as default for routing and DNS. Feb 2 22:57:03 desk NetworkManager: <info> Activation (eth0) successful, device activated. Feb 2 22:57:03 desk NetworkManager: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete. [root@desk ~]#
The error message concerning /etc/resolv.conf is due to the removal of write bit and setting it immutable. NM does create a file called /etc/resolv.conf.tmp which appears to be a copy of my immutable resolv.conf.
Dave McGuffey Principal Information System Security Engineer // NSA-IEM, NSA-IAM Save a Tree...Unless necessary don't print this e-mail
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McGuffey, David C.