Queda de internet

1. Queda de internet

EMERSON SANTOS GUIMARAES
emerson2703

(usa CentOS)

Enviado em 24/01/2013 - 10:59h

Bom dia

Tenho um servidor proxy e firewall, no qcaso ele é meu gateway principal na rede, tem +/- 1 mês que algumas maquina da rede esta com a internet oscilando e os usuarios tem que fica atualizando a pagina com f5 para que carrege, tenho dois links dedicado da oi e embratel, e eles afirmaram que a com eles esta tudo normal, gostaria de saber se é minha eth que esta com algum problema, ou verifcar no log se apresenta algo de estranho.

o log do centos fica em /var/log masi para verificar esta situação qual o arquivo correto que posso verificar?


  


2. Re: Queda de internet

Perfil removido
removido

(usa Nenhuma)

Enviado em 24/01/2013 - 11:07h

No caso de hardware veja os logs do dmesg.

# dmesg

Em caso de erros do squid, veja o cache.log.

# tail -100 /var/log/squid/cache.log


3. Re: Queda de internet

EMERSON SANTOS GUIMARAES
emerson2703

(usa CentOS)

Enviado em 24/01/2013 - 12:28h

dmesg


Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
device eth1 entered promiscuous mode
device eth1 left promiscuous mode
device eth1 entered promiscuous mode
device eth1 left promiscuous mode
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
device eth0 left promiscuous mode
device eth0 entered promiscuous mode
device eth0 left promiscuous mode
device eth0 entered promiscuous mode
device eth0 left promiscuous mode
device eth0 entered promiscuous mode
device eth0 left promiscuous mode
device eth0 entered promiscuous mode
device eth1 entered promiscuous mode
device eth0 left promiscuous mode
device eth1 left promiscuous mode
r8169: eth1: link down
r8169: eth1: link up
r8169: eth1: link down
r8169: eth1: link up
r8169: eth1: link down
r8169: eth1: link up
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
device eth1 entered promiscuous mode
device eth1 left promiscuous mode
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
eth2: no IPv6 routers present
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
r8169: eth0: link up
r8169: eth1: link up
eth2: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth2: Promiscuous mode enabled.
eth0: no IPv6 routers present
eth1: no IPv6 routers present
Removing netfilter NETLINK layer.
ip_tables: (C) 2000-2006 Netfilter Core Team
Netfilter messages via NETLINK v0.30.
ip_conntrack version 2.4 (8192 buckets, 65536 max) - 228 bytes per conntrack
eth2: no IPv6 routers present
device eth0 entered promiscuous mode
device eth0 left promiscuous mode
device eth0 entered promiscuous mode
device eth0 left promiscuous mode



4. Re: Queda de internet

EMERSON SANTOS GUIMARAES
emerson2703

(usa CentOS)

Enviado em 24/01/2013 - 12:30h


tail -100 /var/log/squid/cache.log


2013/01/24 10:34:39| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:39| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:39| clientReadRequest: FD 46 (172.16.4.188:51320) Invalid Request
2013/01/24 10:34:39| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:39| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:39| clientReadRequest: FD 46 (172.16.4.188:51321) Invalid Request
2013/01/24 10:34:39| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:39| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:39| clientReadRequest: FD 46 (172.16.4.188:51322) Invalid Request
2013/01/24 10:34:40| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:40| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:40| clientReadRequest: FD 52 (172.16.4.112:56290) Invalid Request
2013/01/24 10:34:40| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:40| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:40| clientReadRequest: FD 52 (172.16.4.112:56291) Invalid Request
2013/01/24 10:34:40| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:40| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:40| clientReadRequest: FD 52 (172.16.4.112:56292) Invalid Request
2013/01/24 10:34:40| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:40| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:40| clientReadRequest: FD 54 (172.16.4.201:49622) Invalid Request
2013/01/24 10:34:40| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:40| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:40| clientReadRequest: FD 57 (172.16.4.241:51352) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 65 (172.16.4.152:51965) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 65 (172.16.4.152:51966) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 65 (172.16.4.152:51967) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 64 (172.16.4.112:56299) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 65 (172.16.4.112:56300) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 64 (172.16.4.112:56301) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 64 (172.16.4.112:56302) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 79 (172.16.4.36:2312) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 79 (172.16.4.36:2313) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 79 (172.16.4.36:2314) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 81 (172.16.4.36:2315) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 81 (172.16.4.36:2316) Invalid Request
2013/01/24 10:34:43| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:43| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:43| clientReadRequest: FD 81 (172.16.4.36:2317) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 86 (172.16.4.102:49501) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 83 (172.16.4.102:49504) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51323) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51324) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51325) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51326) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51327) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:44| clientReadRequest: FD 96 (172.16.4.188:51328) Invalid Request
2013/01/24 10:34:44| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:44| parseHttpRequest: Unsupported method 'u'
2013/01/24 10:34:44| clientReadRequest: FD 86 (172.16.6.42:51593) Invalid Request
2013/01/24 10:34:45| parseHttpRequest: Requestheader contains NULL characters
2013/01/24 10:34:45| parseHttpRequest: Unsupported method ''
2013/01/24 10:34:45| clientReadRequest: FD 90 (172.16.4.196:50120) Invalid Request
2013/01/24 10:44:45| comm_udp_sendto: FD 6, 8.8.8.8, port 53: (101) Network is unreachable
2013/01/24 10:44:45| idnsSendQuery: FD 6: sendto: (101) Network is unreachable
2013/01/24 10:44:47| comm_udp_sendto: FD 6, 8.8.8.8, port 53: (101) Network is unreachable
2013/01/24 10:44:47| idnsSendQuery: FD 6: sendto: (101) Network is unreachable
2013/01/24 11:25:07| parseHttpRequest: Unsupported method 'Ìì;
m
'
2013/01/24 11:25:07| clientReadRequest: FD 261 (172.16.4.85:63564) Invalid Request



5. Re: Queda de internet

Julian Castaman
maninhx

(usa Slackware)

Enviado em 26/01/2013 - 09:21h

Tentou usar outros DNS?






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