/etc/init.d/networking start – 控制进程退出并显示错误代码。 请参阅“systemctl status networking.service”

Ubuntu v.16主持digitalocean

我像本文一样为项目（ruby，Sinatra）定制Sendmail。 http://www.travisluong.com/ruby-on-rails-sending-email-with-sendmail-on-ubuntu-vps/

我想重新加载/ etc / hosts

我调用/etc/init.d/networking stop ，然后调用/etc/init.d/networking start并获取错误 – 启动网络（通过systemctl）：networking.serviceJob for networking.service失败，因为控制进程退出并显示错误代码。 有关详细信息，请参阅“systemctl status networking.service”和“journalctl -xe”。 失败！

等/主机

 127.0.0.1 localhost MY-WEB-SERVER # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts 

状态网络

 systemctl status networking.service ● networking.service - Raise network interfaces Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled) Drop-In: /run/systemd/generator/networking.service.d └─50-insserv.conf-$network.conf Active: failed (Result: exit-code) since Mon 2016-12-19 11:39:44 UTC; 25min ago Docs: man:interfaces(5) Process: 2587 ExecStop=/sbin/ifdown -a --read-environment (code=exited, status=0/SUCCESS) Process: 10746 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE) Process: 10741 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && ud Main PID: 10746 (code=exited, status=1/FAILURE) 

sudo journalctl -xe

 Unit networking.service has begun starting up. Dec 19 12:49:18 sudoku-spielen ifup[13363]: run-parts: failed to exec /etc/network/if-up.d/00-iptables: Exec format error Dec 19 12:49:18 sudoku-spielen ifup[13363]: run-parts: /etc/network/if-up.d/00-iptables exited with return code 1 Dec 19 12:49:18 sudoku-spielen ifup[13363]: Failed to bring up lo. Dec 19 12:49:18 sudoku-spielen ifup[13363]: RTNETLINK answers: File exists Dec 19 12:49:18 sudoku-spielen ifup[13363]: Failed to bring up eth0. Dec 19 12:49:18 sudoku-spielen ifup[13363]: RTNETLINK answers: File exists Dec 19 12:49:18 sudoku-spielen ifup[13363]: Failed to bring up eth0:1. Dec 19 12:49:18 sudoku-spielen ifup[13363]: run-parts: failed to exec /etc/network/if-up.d/00-iptables: Exec format error Dec 19 12:49:18 sudoku-spielen ifup[13363]: run-parts: /etc/network/if-up.d/00-iptables exited with return code 1 Dec 19 12:49:18 sudoku-spielen ifup[13363]: /sbin/ifup: post-up script failed. Dec 19 12:49:18 sudoku-spielen systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE Dec 19 12:49:18 sudoku-spielen systemd[1]: Failed to start Raise network interfaces. -- Subject: Unit networking.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit networking.service has failed. -- -- The result is failed. Dec 19 12:49:18 sudoku-spielen systemd[1]: networking.service: Unit entered failed state. Dec 19 12:49:18 sudoku-spielen systemd[1]: networking.service: Failed with result 'exit-code'. Dec 19 12:49:18 sudoku-spielen sudo[13344]: pam_unix(sudo:session): session closed for user root Dec 19 12:49:25 sudoku-spielen sudo[13424]: deploy : TTY=pts/0 ; PWD=/home/deploy ; USER=root ; COMMAND=/bin/journalctl -xe Dec 19 12:49:25 sudoku-spielen sudo[13424]: pam_unix(sudo:session): session opened for user root by deploy(uid=0) 

我是管理linux服务器的初学者，请帮忙。