Re: Caindo rede (Squeeze)
Ter, 29.05.2012, Keppler disse:
> Olá Mauricio!
> Putz cara...já reinstalei 2 vezes e o problema continua.
> Vou tentar remover os pacotes ssh e reinstalar novamente.
>
> E por falar em ssh, quais pacotes precisam para ter rodando também um
> servidor ssh?...pode ser que esteja faltando alguma lib, sei lá....
em
http://packages.debian.org/sid/ssh
ou
# dpkg -p ssh | grep Depends
Depends: openssh-client, openssh-server
# dpkg -p openssh-server | grep Depends
Depends: libc6 (>= 2.8), libcomerr2 (>= 1.01), libgssapi-krb5-2 (>=
1.10+dfsg~), libkrb5-3 (>= 1.6.dfsg.2), libpam0g (>= 0.99.7.1),
libselinux1 (>= 1.32), libssl1.0.0 (>= 1.0.0), libwrap0 (>= 7.6-4~),
zlib1g (>= 1:1.1.4), debconf (>= 1.2.0) | debconf-2.0, openssh-client
(= 1:5.9p1-5), libpam-runtime (>= 0.76-14), libpam-modules (>= 0.72-9),
adduser (>= 3.9), dpkg (>= 1.9.0), lsb-base (>= 3.2-13), procps
Abs.,
>
> On 29-05-2012 13:41, Mauricio Neto wrote:
> > Keppler,
> > O que me parece é que o seu problema é com o ssh e não com a rede.
> > faça alguns testes sem usar o ssh. Uma vez tive um problema
> > bastante parecido com uma maquina que eu havia acabado de instalar
> > e não sei porque o ssh estava super mal comportado. Como era uma
> > maquina "zerada" e eu já usava ssh sem problemas em outras, resolvi
> > reinstalar o Debian e tudo funcionou como de costume.
> > Uma ferramenta que gosto muito para estes "mistérios" é o tcpdump,
> > podendo monitorar as duas "pontas"
> > Abraço
> >
> > Mauricio Neto
> >
> > Em 29/05/2012 13:15, Keppler escreveu:
> >> André, olha só que coisa maluca está acontecendo.
> >> Estou acessando esta máquina via SSH e quando fui dar um "cat" no
> >> /var/log/syslog a conexão travou.
> >> Fui até a máquina em questão e notei que ela não pingava mais
> >> nenhuma máquina da rede. A rede voltou a responder somente depois
> >> que eu dei um reboot na máquina.
> >> Mas se eu estiver logado nesta máquina e der um "cat" neste mesmo
> >> arquivo fica normal, ou seja, a conexão não trava.
> >>
> >> Outra coisa entranha que trava a rede é quando à partir desta
> >> máquina Debian quando tento copiar uma arquivos para outra máquina
> >> remota via "scp".
> >>
> >> Como é uma instalação nova o /var/log/syslog está pequeno (tem
> >> 641K), por isso que fui dar um "cat" nele.
> >>
> >> A saída de "ifconfig" não tem de nada de anormal:
> >>
> >> eth0 Link encap:Ethernet Endereço de HW 6c:62:6d:f9:ac:94
> >> inet end.: 192.168.1.30 Bcast:192.168.1.255
> >> Masc:255.255.255.0
> >> endereço inet6: fe80::6e62:6dff:fef9:ac94/64 Escopo:Link
> >> UP BROADCASTRUNNING MULTICAST MTU:1500 Métrica:1
> >> * RX packets:41 errors:0 dropped:0 overruns:0 frame:0
> >> TX packets:63 errors:0 dropped:0 overruns:0 carrier:1*
> >> colisões:0 txqueuelen:1000
> >> RX bytes:5833 (5.6 KiB) TX bytes:8156 (7.9 KiB)
> >> IRQ:27
> >>
> >> lo Link encap:Loopback Local
> >> inet end.: 127.0.0.1 Masc:255.0.0.0
> >> endereço inet6: ::1/128 Escopo:Máquina
> >> UP LOOPBACKRUNNING MTU:16436 Métrica:1
> >> RX packets:140 errors:0 dropped:0 overruns:0 frame:0
> >> TX packets:140 errors:0 dropped:0 overruns:0 carrier:0
> >> colisões:0 txqueuelen:0
> >> RX bytes:22293 (21.7 KiB) TX bytes:22293 (21.7 KiB)
> >>
> >> E dentro de /var/log/syslog nada me chamou a atenção a não ser a
> >> última linha:
> >>
> >> May 29 12:41:05 keppler kernel: [ 16.779204] eth0: no IPv6
> >> routers present
> >>
> >> Muito estranho isto!
> >>
> >> Só um outro detalhe que acredito que não tenha nada há ver é que
> >> as outra máquina é um Slackware, mas até onde me lembro não é para
> >> ter problemas para acessar via ssh de Slackware para Debian e
> >> vice-versa.
> >>
> >> Sabes me dizer o que acontece?
> >>
> >>
> >> On 29-05-2012 09:04, André Luiz wrote:
> >>> Sim, mais precisamente o /var/log/syslog. Quando o problema
> >>> acontecer, veja se algum erro aparece nesse arquivo.
> >>>
> >>> Outra coisa que vc pode verificar é se existem erros na recepção
> >>> ou envio de pacotes através do ifconfig. Quando vc digitar
> >>> ifconfig, veja se na linha que aparece errors depois de RX ou TX
> >>> packets tem um número bastante alto ou se está igual a zero.
> >>>
> >>> On Tue, 29 May 2012 08:40:20 -0300
> >>> Keppler<jurgenkeppler@gmail.com> wrote:
> >>>
> >>>
> >>>> Bom dia André, obrigado pelo retorno.
> >>>> Os logs que vc menciona estariam em "/var/log" ? Quais logs vc
> >>>> quer?
> >>>>
> >>>> Abaixo está a saída do comando "lspci -v":
> >>>>
> >>>> 00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM
> >>>> Controller (rev 09) Subsystem: Intel Corporation Sandy Bridge
> >>>> DRAM Controller Flags: bus master, fast devsel, latency 0
> >>>> Capabilities: [e0] Vendor Specific Information:
> >>>> Len=0c<?>
> >>>>
> >>>> 00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express
> >>>> Root Port (rev 09) (prog-if 00 [Normal decode])
> >>>> Flags: bus master, fast devsel, latency 0
> >>>> Bus: primary=00, secondary=01, subordinate=01,
> >>>> sec-latency=0 I/O behind bridge: 0000e000-0000efff
> >>>> Memory behind bridge: f8000000-fb0fffff
> >>>> Prefetchable memory behind bridge:
> >>>> 00000000d0000000-00000000dfffffff
> >>>> Capabilities: [88] Subsystem: Intel Corporation Sandy
> >>>> Bridge PCI Express Root Port
> >>>> Capabilities: [80] Power Management version 3
> >>>> Capabilities: [90] MSI: Enable+ Count=1/1 Maskable-
> >>>> 64bit- Capabilities: [a0] Express Root Port (Slot+), MSI 00
> >>>> Capabilities: [100] Virtual Channel
> >>>> Capabilities: [140] Root Complex Link
> >>>> Kernel driver in use: pcieport
> >>>>
> >>>> 00:16.0 Communication controller: Intel Corporation Cougar Point
> >>>> HECI Controller #1 (rev 04)
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, fast devsel, latency 0, IRQ 11
> >>>> Memory at fb207000 (64-bit, non-prefetchable) [size=16]
> >>>> Capabilities: [50] Power Management version 3
> >>>> Capabilities: [8c] MSI: Enable- Count=1/1 Maskable-
> >>>> 64bit+
> >>>>
> >>>> 00:1a.0 USB Controller: Intel Corporation Cougar Point USB
> >>>> Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, medium devsel, latency 0, IRQ 16
> >>>> Memory at fb206000 (32-bit, non-prefetchable) [size=1K]
> >>>> Capabilities: [50] Power Management version 2
> >>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
> >>>> Capabilities: [98] PCI Advanced Features
> >>>> Kernel driver in use: ehci_hcd
> >>>>
> >>>> 00:1b.0 Audio device: Intel Corporation Cougar Point High
> >>>> Definition Audio Controller (rev 05)
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, fast devsel, latency 0, IRQ 22
> >>>> Memory at fb200000 (64-bit, non-prefetchable)
> >>>> [size=16K] Capabilities: [50] Power Management version 2
> >>>> Capabilities: [60] MSI: Enable- Count=1/1 Maskable-
> >>>> 64bit+ Capabilities: [70] Express Root Complex Integrated
> >>>> Endpoint, MSI 00 Capabilities: [100] Virtual Channel
> >>>> Capabilities: [130] Root Complex Link
> >>>> Kernel driver in use: HDA Intel
> >>>>
> >>>> 00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express
> >>>> Root Port 1 (rev b5) (prog-if 00 [Normal decode])
> >>>> Flags: bus master, fast devsel, latency 0
> >>>> Bus: primary=00, secondary=02, subordinate=02,
> >>>> sec-latency=0 Capabilities: [40] Express Root Port (Slot+), MSI
> >>>> 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> >>>> Capabilities: [90] Subsystem: Micro-Star International
> >>>> Co., Ltd. Device 7680
> >>>> Capabilities: [a0] Power Management version 2
> >>>> Kernel driver in use: pcieport
> >>>>
> >>>> 00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express
> >>>> Root Port 5 (rev b5) (prog-if 00 [Normal decode])
> >>>> Flags: bus master, fast devsel, latency 0
> >>>> Bus: primary=00, secondary=03, subordinate=03,
> >>>> sec-latency=0 I/O behind bridge: 0000d000-0000dfff
> >>>> Memory behind bridge: fb100000-fb1fffff
> >>>> Capabilities: [40] Express Root Port (Slot+), MSI 00
> >>>> Capabilities: [80] MSI: Enable+ Count=1/1 Maskable-
> >>>> 64bit- Capabilities: [90] Subsystem: Micro-Star International
> >>>> Co., Ltd. Device 7680
> >>>> Capabilities: [a0] Power Management version 2
> >>>> Kernel driver in use: pcieport
> >>>>
> >>>> 00:1d.0 USB Controller: Intel Corporation Cougar Point USB
> >>>> Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, medium devsel, latency 0, IRQ 23
> >>>> Memory at fb205000 (32-bit, non-prefetchable) [size=1K]
> >>>> Capabilities: [50] Power Management version 2
> >>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
> >>>> Capabilities: [98] PCI Advanced Features
> >>>> Kernel driver in use: ehci_hcd
> >>>>
> >>>> 00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller
> >>>> (rev 05) Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, medium devsel, latency 0
> >>>> Capabilities: [e0] Vendor Specific Information:
> >>>> Len=0c<?>
> >>>>
> >>>> 00:1f.2 IDE interface: Intel Corporation Cougar Point 4 port
> >>>> SATA IDE Controller (rev 05) (prog-if 8a [Master SecP PriP])
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19
> >>>> I/O ports at 01f0 [size=8]
> >>>> I/O ports at 03f4 [size=1]
> >>>> I/O ports at 0170 [size=8]
> >>>> I/O ports at 0374 [size=1]
> >>>> I/O ports at f090 [size=16]
> >>>> I/O ports at f080 [size=16]
> >>>> Capabilities: [70] Power Management version 3
> >>>> Capabilities: [b0] PCI Advanced Features
> >>>> Kernel driver in use: ata_piix
> >>>>
> >>>> 00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller
> >>>> (rev 05) Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: medium devsel, IRQ 18
> >>>> Memory at fb204000 (64-bit, non-prefetchable)
> >>>> [size=256] I/O ports at f000 [size=32]
> >>>> Kernel driver in use: i801_smbus
> >>>>
> >>>> 00:1f.5 IDE interface: Intel Corporation Cougar Point 2 port
> >>>> SATA IDE Controller (rev 05) (prog-if 85 [Master SecO PriO])
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19
> >>>> I/O ports at f070 [size=8]
> >>>> I/O ports at f060 [size=4]
> >>>> I/O ports at f050 [size=8]
> >>>> I/O ports at f040 [size=4]
> >>>> I/O ports at f030 [size=16]
> >>>> I/O ports at f020 [size=16]
> >>>> Capabilities: [70] Power Management version 3
> >>>> Capabilities: [b0] PCI Advanced Features
> >>>> Kernel driver in use: ata_piix
> >>>>
> >>>> 01:00.0 VGA compatible controller: nVidia Corporation G96
> >>>> [GeForce 9500 GT] (rev a1) (prog-if 00 [VGA controller])
> >>>> Subsystem: Club-3D BV Device 0000
> >>>> Flags: bus master, fast devsel, latency 0, IRQ 16
> >>>> Memory at fa000000 (32-bit, non-prefetchable)
> >>>> [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=256M]
> >>>> Memory at f8000000 (64-bit, non-prefetchable)
> >>>> [size=32M] I/O ports at e000 [size=128]
> >>>> Expansion ROM at fb000000 [disabled] [size=512K]
> >>>> Capabilities: [60] Power Management version 3
> >>>> Capabilities: [68] MSI: Enable- Count=1/1 Maskable-
> >>>> 64bit+ Capabilities: [78] Express Endpoint, MSI 00
> >>>> Capabilities: [b4] Vendor Specific Information:
> >>>> Len=14<?> Capabilities: [100] Virtual Channel
> >>>> Capabilities: [128] Power Budgeting<?>
> >>>> Capabilities: [600] Vendor Specific Information:
> >>>> ID=0001 Rev=1 Len=024<?>
> >>>> Kernel driver in use: nouveau
> >>>>
> >>>> 03:00.0 Ethernet controller: Atheros Communications AR8152 v2.0
> >>>> Fast Ethernet (rev c1)
> >>>> Subsystem: Micro-Star International Co., Ltd. Device
> >>>> 7680 Flags: bus master, fast devsel, latency 0, IRQ 27
> >>>> Memory at fb100000 (64-bit, non-prefetchable)
> >>>> [size=256K] I/O ports at d000 [size=128]
> >>>> Capabilities: [40] Power Management version 3
> >>>> Capabilities: [48] MSI: Enable+ Count=1/1 Maskable-
> >>>> 64bit+ Capabilities: [58] Express Endpoint, MSI 00
> >>>> Capabilities: [6c] Vital Product Data
> >>>> Capabilities: [100] Advanced Error Reporting
> >>>> Capabilities: [180] Device Serial Number
> >>>> ff-f9-ac-94-6c-62-6d-ff Kernel driver in use: atl1c
> >>>>
> >>>>
> >>>>
> >>>> On 29-05-2012 07:59, André Luiz wrote:
> >>>>
> >>>>> Mande os logs para podermos te ajudar melhor e a saída do
> >>>>> comando lspci.
> >>>>>
> >>>>> On Tue, 29 May 2012 00:34:30 -0300
> >>>>> Keppler<jurgenkeppler@gmail.com> wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>> Olá pessoal.
> >>>>>> Acabei de instalar o Squeeze numa máquina aqui para testes, mas
> >>>>>> está acontecendo algo estranho aqui.
> >>>>>> A rede cai após alguns minutos (acho que entre 10 ou 15
> >>>>>> minutos). Tipo como se estivesse desconectado o cabo de rede.
> >>>>>> Notei isto porque quando estou conectar nesta maquina via ssh a
> >>>>>> partir de uma outra maquina com Linux, trava a sessão ssh e
> >>>>>> quando vou a máquina com o Squeeze se eu der um "ping" para qq
> >>>>>> maquina da rede não pinga mais.....
> >>>>>>
> >>>>>> Mas de der um "reboot" na máquina a rede volta novamente, mas
> >>>>>> após alguns minutos cai novamente.
> >>>>>>
> >>>>>> O que tenho que fazer?
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>
> >>>
> >>
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--
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Pone al cristiánico firme y guerrérico
Por sus poróticos y sus cebóllicas,
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