Error response on port 443

Support
1

Hey,

I’m fairly new to discourse but trying to get it running. However, I was able to install a fresh discourse and it worked perfect. After that I imported existing data from an old phpbb platform. This also worked pretty well but after trying to start the app, I received the following error:

root@Ubuntu-1604-xenial-64-minimal ~ # /var/discourse/launcher start app

starting up existing container
+ /usr/bin/docker start app
Error response from daemon: driver failed programming external connectivity on endpoint app (968b81cbbd373c581d13a6f733ceba1a3b04aceaf292ecc51141fb26f133c7bf): Bind for 0.0.0.0:443 failed: port is already allocated
Error: failed to start containers: app

netstat:

root@Ubuntu-1604-xenial-64-minimal ~ # netstat -tulpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1027/sshd
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      17467/postgres
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      28390/redis-server
tcp6       0      0 :::22                   :::*                    LISTEN      1027/sshd
tcp6       0      0 :::443                  :::*                    LISTEN      14632/docker-proxy
tcp6       0      0 :::6379                 :::*                    LISTEN      28428/redis-server
tcp6       0      0 :::80                   :::*                    LISTEN      14644/docker-proxy
udp        0      0 0.0.0.0:68              0.0.0.0:*                           788/dhclient

I had vsftpd and mysql on the server but removed it. Any ideas on how to solve the issue?

Thanks,
Daniel

2

According to that netstat output, it is Docker listening on port 443. What else do you have running on this server?

It is possible to run other things besides Discourse on a single machine, but it is not recommended.

3

I’m not sure about other running services, but the service status list looks as follows

root@Ubuntu-1604-xenial-64-minimal ~ # service --status-all
 [ - ]  apparmor
 [ + ]  atd
 [ - ]  bootmisc.sh
 [ - ]  cgroupfs-mount
 [ - ]  checkfs.sh
 [ - ]  checkroot-bootclean.sh
 [ - ]  checkroot.sh
 [ + ]  console-setup
 [ + ]  cpufrequtils
 [ + ]  cron
 [ + ]  dbus
 [ + ]  docker
 [ + ]  fail2ban
 [ + ]  grub-common
 [ + ]  haveged
 [ - ]  hostname.sh
 [ - ]  hwclock.sh
 [ - ]  keyboard-setup.dpkg-bak
 [ - ]  killprocs
 [ + ]  kmod
 [ + ]  loadcpufreq
 [ - ]  lvm2
 [ + ]  lvm2-lvmetad
 [ + ]  lvm2-lvmpolld
 [ + ]  mdadm
 [ - ]  mdadm-waitidle
 [ - ]  mountall-bootclean.sh
 [ - ]  mountall.sh
 [ - ]  mountdevsubfs.sh
 [ - ]  mountkernfs.sh
 [ - ]  mountnfs-bootclean.sh
 [ - ]  mountnfs.sh
 [ + ]  networking
 [ + ]  ondemand
 [ + ]  postgresql
 [ + ]  procps
 [ + ]  rc.local
 [ + ]  redis-server
 [ - ]  rsync
 [ + ]  rsyslog
 [ - ]  sendsigs
 [ + ]  ssh
 [ - ]  sysstat
 [ + ]  udev
 [ - ]  umountfs
 [ - ]  umountnfs.sh
 [ - ]  umountroot
 [ + ]  unattended-upgrades
 [ + ]  urandom
 [ - ]  uuidd
 [ - ]  vsftpd

I don’t want to have anything running besides docker.

4

solved it! a simple reboot did the trick…

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