* [Comm] Routing to lo (Loopback interface) failed.. Help me! #2
@ 2005-02-17 9:51 Slobodian Viacheslav
2005-02-17 10:45 ` Dmytro O. Redchuk
0 siblings, 1 reply; 4+ messages in thread
From: Slobodian Viacheslav @ 2005-02-17 9:51 UTC (permalink / raw)
To: community
Система ALT Master 2.4 засизифленная по полной. ;)
Недавно игрался с разными скриптами для iptables- пробовал разные политики, запрещая то одно, то другое..
На следующий день обнаружил, что у меня зависают запросы на localhost. Т.е. ни тебе обращения к CUPS, ни прокси локальной, ни апачи локальной..
Такое впечатление, что при опущенном файерволе и включённом в ifconfig интерфейсом lo его "не существует" на самом деле.
Предполагаю, что где-то поломал роутинг на localhost.
Как восстановить?
По совету коллеги попробовал
[root@slava install]# route add 127.0.0.0 netmask 255.0.0.0 dev lo
route: netmask 00ffffff doesn't make sense with host route
и
[root@slava install]# ip route add 127.0.0.0/8 dev lo
RTNETLINK answers: No such device
Куда копать дальше?
Привожу:
[root@slava root]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
83.97.105.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 83.97.105.65 0.0.0.0 UG 0 0 0 eth0
---
Т.е. не хватает строки
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
пытался её добавить через
[root@slava etc]# route add 127.0.0.0 netmask 0.0.0.0 gw 255.0.0.0
SIOCADDRT: Network is unreachable
---
[root@slava install]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
---
[root@slava install]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0D:61:4F:3A:1D
inet addr:83.97.105.71 Bcast:83.97.105.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:39722 errors:0 dropped:0 overruns:0 frame:0
TX packets:35810 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:26672169 (25.4 MiB) TX bytes:4593211 (4.3 MiB)
Interrupt:19 Base address:0xe000
lo Link encap:Local Loopback
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Comm] Routing to lo (Loopback interface) failed.. Help me! #2
2005-02-17 9:51 [Comm] Routing to lo (Loopback interface) failed.. Help me! #2 Slobodian Viacheslav
@ 2005-02-17 10:45 ` Dmytro O. Redchuk
2005-02-17 11:06 ` Slobodian Viacheslav
0 siblings, 1 reply; 4+ messages in thread
From: Dmytro O. Redchuk @ 2005-02-17 10:45 UTC (permalink / raw)
To: community
On Thu, Feb 17, 2005 at 12:51:16PM +0300, Slobodian Viacheslav wrote:
> Система ALT Master 2.4 засизифленная по полной. ;)
^^^^^^^^^^^^^
Оттож...
Как всегда -- cat /etc/sysconfig/network-scripts/ifcfg-{lo,eth0} для
начала ;О)
И rpm -q net-scripts
--
_,-=._ /|_/|
`-.} `=._,.-=-._., @ @._,
`._ _,-. ) _,.-'
` G.m-"^m`m' Dmytro O. Redchuk
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Comm] Routing to lo (Loopback interface) failed.. Help me! #2
2005-02-17 10:45 ` Dmytro O. Redchuk
@ 2005-02-17 11:06 ` Slobodian Viacheslav
2005-02-17 11:44 ` Dmytro O. Redchuk
0 siblings, 1 reply; 4+ messages in thread
From: Slobodian Viacheslav @ 2005-02-17 11:06 UTC (permalink / raw)
To: community
[root@slava install]# cat /etc/sysconfig/network-scripts/ifcfg-lo
DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopback
[root@slava install]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=83.97.105.71
NETMASK=255.255.255.0
NETWORK=83.97.105.0
BROADCAST=83.97.105.255
ONBOOT=yes
[root@slava install]# rpm -q net-scripts
net-scripts-0.5.3-alt1
Пока ни к каким выводам сам не пришёл.. Сетевые скрипты изучал и раньше, но найти что-либо "ошибочное" не смог..
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Comm] Routing to lo (Loopback interface) failed.. Help me! #2
2005-02-17 11:06 ` Slobodian Viacheslav
@ 2005-02-17 11:44 ` Dmytro O. Redchuk
0 siblings, 0 replies; 4+ messages in thread
From: Dmytro O. Redchuk @ 2005-02-17 11:44 UTC (permalink / raw)
To: community
On Thu, Feb 17, 2005 at 02:06:43PM +0300, Slobodian Viacheslav wrote:
>
> [root@slava install]# cat /etc/sysconfig/network-scripts/ifcfg-lo
> DEVICE=lo
> IPADDR=127.0.0.1
> NETMASK=255.0.0.0
> NETWORK=127.0.0.0
>
> # If you're having problems with gated making 127.0.0.0/8 a martian,
> # you can change this to something else (255.255.255.255, for example)
> BROADCAST=127.255.255.255
> ONBOOT=yes
> NAME=loopback
Добавьте сюда BOOTPROTO=static
Это связано с одним недопатчем одного бага.. My fault, let's say...
https://bugzilla.altlinux.org/show_bug.cgi?id=5891
Вот оттуда:
----------------------------------------------- шмат
------ Additional Comment #5 From Denis Ovsienko 2005-02-16 20:01 [reply] -------
Для истории: правка этого бага приводит к неработоспособности lo без
BOOTPROTO=static в ifcfg-lo. Да здравствует /etc/net!
----------------------------------------------- шмат
--
_,-=._ /|_/|
`-.} `=._,.-=-._., @ @._,
`._ _,-. ) _,.-'
` G.m-"^m`m' Dmytro O. Redchuk
^ permalink raw reply [flat|nested] 4+ messages in thread
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2005-02-17 9:51 [Comm] Routing to lo (Loopback interface) failed.. Help me! #2 Slobodian Viacheslav
2005-02-17 10:45 ` Dmytro O. Redchuk
2005-02-17 11:06 ` Slobodian Viacheslav
2005-02-17 11:44 ` Dmytro O. Redchuk
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