sudo /opt/lampp/lampp start
(sudo / opt / lampp / lampp启动)
sudo: unable to resolve host ubuntu16-04-lts
(sudo：无法解析主机ubuntu16-04-lts)
Starting XAMPP for Linux 7.3.11-0...
(正在启动Linux的XAMPP 7.3.11-0 ...)
XAMPP: Starting Apache...already running.
(XAMPP：正在启动Apache ...已在运行。)
XAMPP: Starting MySQL...already running.
(XAMPP：正在启动MySQL ...已在运行。)
XAMPP: Starting ProFTPD...fail.
(XAMPP：启动ProFTPD ...失败。)
Contents of "/opt/lampp/var/proftpd/start.err":
(“ /opt/lampp/var/proftpd/start.err”的内容：)
ubuntu16-04-lts proftpd[4255]: warning: unable to determine IP address of 'ubuntu16-04-lts'
(ubuntu16-04-lts proftpd [4255]：警告：无法确定'ubuntu16-04-lts'的IP地址)
ubuntu16-04-lts proftpd[4255]: error: no valid servers configured
(ubuntu16-04-lts proftpd [4255]：错误：未配置有效的服务器)
ubuntu16-04-lts proftpd[4255]: Fatal: error processing configuration file '/opt/lampp/etc/proftpd.conf'
(ubuntu16-04-lts proftpd [4255]：致命：错误处理配置文件'/opt/lampp/etc/proftpd.conf')
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