Por que não consigo iniciar o isc-dhcp-server na instalação?

11

Estou seguindo o este tutorial para instalar o Linux em um sistema que não possui leitor de CD nem recursos de inicialização USB. Eventualmente, cheguei ao ponto em que tive que instalar isc-dhcp-server e eu fiz, mais ou menos.

Apt me diz que há um pacote parcialmente instalado. Eu corro sudo apt-get install -f e recebo o seguinte:

Job for isc-dhcp-server.service failed. See 'systemctl status isc-dhcp server.service' and 'journalctl -xn' for details.
invoke-rc.d: initscript isc-dhcp-server, action "start" failed.
dpkg: error processing package isc-dhcp-server (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
isc-dhcp-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

Se eu fizer /etc/init.d/isc-dhcp-server start , o prompt consistirá das duas primeiras linhas da mesma mensagem.

Saída de sudo systemctl status isc-dhcp-server :

● isc-dhcp-server.service - LSB: DHCP server
   Loaded: loaded (/etc/init.d/isc-dhcp-server)
   Active: failed (Result: exit-code) since Fri 2014-12-12 13:19:25 CST; 2min 43s ago
  Process: 1677 ExecStart=/etc/init.d/isc-dhcp-server start (code=exited, status=1/FAILURE)

Dec 12 13:19:23 semplice dhcpd[1684]: you want, please write a subnet declaration
Dec 12 13:19:23 semplice dhcpd[1684]: in your dhcpd.conf file for the network segment
Dec 12 13:19:23 semplice dhcpd[1684]: to which interface eth0 is attached. **
Dec 12 13:19:23 semplice dhcpd[1684]: 
Dec 12 13:19:23 semplice dhcpd[1684]: 
Dec 12 13:19:25 semplice isc-dhcp-server[1677]: Starting ISC DHCP server: dhcpdcheck syslog for diagnostics. ... failed!
Dec 12 13:19:25 semplice isc-dhcp-server[1677]: failed!
Dec 12 13:19:25 semplice systemd[1]: isc-dhcp-server.service: control process exited, code=exited status=1
Dec 12 13:19:25 semplice systemd[1]: Failed to start LSB: DHCP server.
Dec 12 13:19:25 semplice systemd[1]: Unit isc-dhcp-server.service entered failed state.

Saída de sudo journalctl -xn :

-- Logs begin at Fri 2014-12-12 12:57:16 CST, end at Fri 2014-12-12 13:32:01 CST. --
Dec 12 13:31:58 semplice NetworkManager[505]: <info>   lease time 86400
Dec 12 13:31:58 semplice NetworkManager[505]: <info>   nameserver '192.168.1.254'
Dec 12 13:31:58 semplice NetworkManager[505]: <info>   domain name 'lan'
Dec 12 13:31:58 semplice dbus[518]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.ser
Dec 12 13:31:58 semplice dbus[518]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec 12 13:31:58 semplice nm-dispatcher[2194]: Dispatching action 'dhcp4-change' for wlan0
Dec 12 13:31:58 semplice dhclient[616]: bound to 192.168.1.65 -- renewal in 45 seconds.
Dec 12 13:31:58 semplice NetworkManager[505]: bound to 192.168.1.65 -- renewal in 45 seconds.
Dec 12 13:32:01 semplice sudo[2197]: alejandro : TTY=pts/0 ; PWD=/home/alejandro ; USER=root ; COMMAND=/bin/journalctl -xn
Dec 12 13:32:01 semplice sudo[2197]: pam_unix(sudo:session): session opened for user root by alejandro(uid=0)

Este é o meu arquivo /etc/dhcp/dhcpd.config , que é apenas uma cópia do exemplo no tutorial mencionado acima.

Saída de /var/log/syslog lido imediatamente após executar apt-get install -f

Dec 12 16:42:40 localhost dhclient: DHCPREQUEST on wlan0 to 192.168.1.254 port 67
Dec 12 16:42:40 localhost NetworkManager[505]: DHCPREQUEST on wlan0 to 192.168.1.254 port 67
Dec 12 16:42:40 localhost dhclient: DHCPACK from 192.168.1.254
Dec 12 16:42:40 localhost NetworkManager[505]: DHCPACK from 192.168.1.254
Dec 12 16:42:40 localhost NetworkManager[505]: <info> (wlan0): DHCPv4 state changed renew -> renew
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   address 192.168.1.65
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   plen 24 (255.255.255.0)
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   gateway 192.168.1.254
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   server identifier 192.168.1.254
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   lease time 86400
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   nameserver '192.168.1.254'
Dec 12 16:42:40 localhost NetworkManager[505]: <info>   domain name 'lan'
Dec 12 16:42:40 localhost dbus[518]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Dec 12 16:42:40 localhost dbus[518]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec 12 16:42:40 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for wlan0
Dec 12 16:42:41 localhost dhclient: bound to 192.168.1.65 -- renewal in 52 seconds.
Dec 12 16:42:41 localhost NetworkManager[505]: bound to 192.168.1.65 -- renewal in 52 seconds.
Dec 12 16:43:32 localhost dhclient: DHCPREQUEST on wlan0 to 192.168.1.254 port 67
Dec 12 16:43:32 localhost NetworkManager[505]: DHCPREQUEST on wlan0 to 192.168.1.254 port 67
Dec 12 16:43:32 localhost dhclient: DHCPACK from 192.168.1.254
Dec 12 16:43:32 localhost NetworkManager[505]: DHCPACK from 192.168.1.254
Dec 12 16:43:32 localhost NetworkManager[505]: <info> (wlan0): DHCPv4 state changed renew -> renew
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   address 192.168.1.65
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   plen 24 (255.255.255.0)
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   gateway 192.168.1.254
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   server identifier 192.168.1.254
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   lease time 86400
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   nameserver '192.168.1.254'
Dec 12 16:43:32 localhost NetworkManager[505]: <info>   domain name 'lan'
Dec 12 16:43:32 localhost dbus[518]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Dec 12 16:43:32 localhost dbus[518]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec 12 16:43:32 localhost nm-dispatcher: Dispatching action 'dhcp4-change' for wlan0
Dec 12 16:43:33 localhost dhclient: bound to 192.168.1.65 -- renewal in 54 seconds.
Dec 12 16:43:33 localhost NetworkManager[505]: bound to 192.168.1.65 -- renewal in 54 seconds.
Dec 12 16:43:40 localhost dhcpd: Internet Systems Consortium DHCP Server 4.3.1
Dec 12 16:43:40 localhost dhcpd: Copyright 2004-2014 Internet Systems Consortium.
Dec 12 16:43:40 localhost dhcpd: All rights reserved.
Dec 12 16:43:40 localhost dhcpd: For info, please visit https://www.isc.org/software/dhcp/
Dec 12 16:43:40 localhost dhcpd: Internet Systems Consortium DHCP Server 4.3.1
Dec 12 16:43:40 localhost dhcpd: Copyright 2004-2014 Internet Systems Consortium.
Dec 12 16:43:40 localhost dhcpd: All rights reserved.
Dec 12 16:43:40 localhost dhcpd: For info, please visit https://www.isc.org/software/dhcp/
Dec 12 16:43:40 localhost dhcpd: Wrote 0 deleted host decls to leases file.
Dec 12 16:43:40 localhost dhcpd: Wrote 0 new dynamic host decls to leases file.
Dec 12 16:43:40 localhost dhcpd: Wrote 0 leases to leases file.
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: No subnet declaration for eth0 (no IPv4 addresses).
Dec 12 16:43:40 localhost dhcpd: ** Ignoring requests on eth0.  If this is not what
Dec 12 16:43:40 localhost dhcpd:    you want, please write a subnet declaration
Dec 12 16:43:40 localhost dhcpd:    in your dhcpd.conf file for the network segment
Dec 12 16:43:40 localhost dhcpd:    to which interface eth0 is attached. **
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: Not configured to listen on any interfaces!
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: If you think you have received this message due to a bug rather
Dec 12 16:43:40 localhost dhcpd: than a configuration issue please read the section on submitting
Dec 12 16:43:40 localhost dhcpd: bugs on either our web page at www.isc.org or in the README file
Dec 12 16:43:40 localhost dhcpd: before submitting a bug.  These pages explain the proper
Dec 12 16:43:40 localhost dhcpd: process and the information we find helpful for debugging..
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: exiting.
Dec 12 16:43:42 localhost isc-dhcp-server[5729]: Starting ISC DHCP server: dhcpdcheck syslog for diagnostics. ... failed!
Dec 12 16:43:42 localhost isc-dhcp-server[5729]: failed!
Dec 12 16:43:42 localhost systemd[1]: isc-dhcp-server.service: control process exited, code=exited status=1
Dec 12 16:43:42 localhost systemd[1]: Failed to start LSB: DHCP server.
Dec 12 16:43:42 localhost systemd[1]: Unit isc-dhcp-server.service entered failed state.

Devo ocultar meu endereço IP?

    
por Mario Gil 12.12.2014 / 06:54

2 respostas

5

Parece que sua configuração de rede não corresponde à sua declaração de sub-rede no dhcp.conf. Certifique-se de que você tenha um endereço IP da sub-rede 10.10.1.0/24 configurada. Você pode verificar isso usando:

ip a

Se você não vir esse endereço IP, tente adicioná-lo a e. g. eth0:

ip a a 10.10.1.200/24 dev eth0

Depois disso tente novamente consertar o pacote:

apt-get install -f

Se eu estiver correto, ele deve instalar o pacote e iniciar o daemon do DHCP e você poderá persistir esse endereço IP em / etc / network / interfaces

    
por 13.12.2014 / 00:19
3

Seu problema está aqui:

Dec 12 16:43:40 localhost dhcpd: No subnet declaration for eth0 (no IPv4 addresses).
Dec 12 16:43:40 localhost dhcpd: ** Ignoring requests on eth0.  If this is not what
Dec 12 16:43:40 localhost dhcpd:    you want, please write a subnet declaration
Dec 12 16:43:40 localhost dhcpd:    in your dhcpd.conf file for the network segment
Dec 12 16:43:40 localhost dhcpd:    to which interface eth0 is attached. **
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: Not configured to listen on any interfaces!
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: If you think you have received this message due to a bug rather
Dec 12 16:43:40 localhost dhcpd: than a configuration issue please read the section on submitting
Dec 12 16:43:40 localhost dhcpd: bugs on either our web page at www.isc.org or in the README file
Dec 12 16:43:40 localhost dhcpd: before submitting a bug.  These pages explain the proper
Dec 12 16:43:40 localhost dhcpd: process and the information we find helpful for debugging..
Dec 12 16:43:40 localhost dhcpd: 
Dec 12 16:43:40 localhost dhcpd: exiting.

Você deve conseguir reproduzir a mensagem de erro executando dhcpd -t -cf /etc/dhcp/dhcpd.conf .

Suponho que você deseja compartilhar uma conexão de Internet sem fio com outros hosts na Ethernet, como no diagrama de topologia abaixo.

                            ↑
                            │ Uplink
                            │
               ┌────────────┴────────────┐
               │          wlan0          │
               │     192.168.1.65/24     │
               │                         │
               │        semplice         │
               │                         │
               │       10.10.1.1/24      │
               │          eth0           │
               └────────────┬────────────┘
                            │
     ┌──────────────┬───────┴────────┬──────────────┐
     │              │                │              │
   Host 1         Host 2           Host 3         Host 4
 10.10.1.21     10.10.1.22       10.10.1.23     10.10.1.24

Suponho que o endereço do seu servidor para eth0 seja 10.10.1.1. Verifique isso executando ip addr show dev eth0 .

Em seguida, você deve configurar /etc/dhcp/dhcpd.conf para distribuir endereços na interface eth0 . Fora da caixa, dhcpd está configurado para não responder a nada, porque um servidor DHCP invasor inadvertidamente poderia causar estragos em uma rede distribuindo endereços para qualquer host que solicite um.

Em /etc/dhcp/dhcpd.conf , você precisará de uma estrofe como a seguinte:

subnet 10.10.1.0 netmask 255.255.255.0 {
    option subnet-mask        255.255.255.0;
    option broadcast-address  10.10.1.255;
    option routers            10.10.1.1;
    pool {
        range 10.10.1.21 10.10.1.254;
    }
}

… além de declarações como authoritative , domain-name , domain-name-servers e default-lease-time . (Ajuste conforme necessário. Somente você sabe quais configurações deseja para sua rede.)

Além disso, para o Debian, você precisará editar /etc/default/isc-dhcp-server para definir

INTERFACES="eth0"

para que o servidor escute na porta Ethernet. (Você não deseja escutar wlan0 ; seu ponto de acesso sem fio seria responsável por distribuir endereços para clientes sem fio.)

    
por 13.12.2014 / 09:45