重新启动我的Ubuntu服务器后，我无法ping它。 我的托pipe（Herzner）允许启动救援系统的服务器，所以我可以访问文件系统，并尝试修复它。
问题是， 在哪里寻找问题？
我检查了我的boot.log和一切似乎看起来很好：
cat boot.log * Starting mDNS/DNS-SD daemon [ OK ] * Starting bluetooth daemon [ OK ] * Starting CUPS printing spooler/server [ OK ] * Stopping OpenSSH server [ OK ] * Starting OpenSSH server [ OK ] * Starting Mount network filesystems [ OK ] * Starting vsftpd daemon [fail] * Starting System V initialisation compatibility [ OK ] * Starting modem connection manager [ OK ] * Starting configure network device security [ OK ] * Stopping Mount network filesystems [ OK ] * Stopping OpenSSH server [ OK ] * Starting OpenSSH server [ OK ] * Starting Mount network filesystems [ OK ] * Starting vsftpd daemon [fail] * Stopping configure virtual network devices [ OK ] * Stopping Mount network filesystems [ OK ] Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd * Starting network connection manager [ OK ] * Starting AppArmor profiles [ OK ] * Loading cpufreq kernel modules... [ OK ] * CPU0... [ OK ] * CPUFreq Utilities: Setting ondemand CPUFreq governor... * Stopping System V initialisation compatibility [ OK ] * Starting System V runlevel compatibility [ OK ] * Starting anac(h)ronistic cron [ OK ] * Starting save kernel messages [ OK ] * Starting ACPI daemon [ OK ] * Starting automatic crash report generation [ OK ] * Starting regular background program processing daemon [ OK ] * Starting deferred execution scheduler [ OK ] * Starting LightDM Display Manager [ OK ] * Starting CPU interrupts balancing daemon [ OK ] * Stopping Send an event to indicate plymouth is up [ OK ] * Stopping anac(h)ronistic cron [ OK ] * Stopping save kernel messages [ OK ] * Starting TeamViewer remote control daemon [ OK ] * Starting crash report submission daemon [ OK ]