Synchronet v3.19b-Win32 (install) has been released (Jan-2022).

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howto:systemd [2018/01/14 13:06] – [See Also] digital manhowto:systemd [2023/04/07 12:28] (current) – Wording digital man
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-====== Start Synchronet BBS from Systemd ======+====== Start, Control, and Monitor Synchronet BBS using systemd ======
  
-If you run modern GNU/Linux distributions, you can found [[https://en.wikipedia.org/wiki/Systemd|Systemd]] as init system (like Debian, Fedora and others).+If you run a modern GNU/Linux distribution, it is likely using [[https://en.wikipedia.org/wiki/Systemd|systemd]] as its "init system" for starting and controlling system services/daemons. Installing Synchronet into systemd is recommended for such systems so that Synchronet will start upon system boot and provide all the control and monitoring expected of an integrated system service.
  
-Instead of use the old /etc/init.d/sbbs.service init script, you can create a systemd services unit file:+===== Install =====
  
-Create and edit the follow files (please correct your ExecStart path and User/Group as you need): +If you've installed Synchronet, you should already have the required [[https://gitlab.synchro.net/main/sbbs/-/raw/master/install/systemd/sbbs.service|system service unit file]] in the following location: 
- +  sbbs/repo/install/systemd/sbbs.service
-===== Ubuntu 16.04+ ===== +
-/lib/systemd/system/sbbs.service +
-  [Unit] +
-  Description=Synchronet BBS service +
-  Documentation=man:sbbs +
-  After=syslog.target network.target+
      
-  [Service] +Read [[https://gitlab.synchro.net/main/sbbs/-/raw/master/install/systemd/sbbs.service|this file]] for the current instructions on how to install and configure it, but here's a summary for quick reference:
-  Type=forking +
-  Environment=SBBSROOT=/sbbs SBBSCTRL=/sbbs/ctrl +
-  User=sbbs +
-  Group=sbbs +
-  PermissionsStartOnly=true +
-  ExecStartPre=/sbin/setcap 'cap_net_bind_service=+ep' /sbbs/src/sbbs3/gcc.linux.x64.exe.release/sbbs +
-  ExecStart=/sbbs/exec/sbbs d +
-  ExecReload=/bin/kill -HUP $MAINPID +
-  Restart=on-failure +
-  RestartSec=30 +
-   +
-  [Install] +
-  WantedBy=multi-user.target+
  
-Some points in this config: +  - Copy or symlink the ''sbbs.service'' file to the correct directory, e.g. for Debian/Ubuntu Linux, that would be: ''/lib/systemd/system'' 
-   * **After**. If you are using syslog with sbbs, so it is nice to put that requirement before systemd tries to launch sbbs. +  - Enable the BBS service by running: ''sudo systemctl enable sbbs'' 
-   * **Type**. If you are to run SBBS in daemonized mode, the main executable will exit after the daemon is called. This could confuse systemd into thinking the process is finished. If you use "Type=forking" you tell systemd that the process you launch will execute another process. +  - To run the BBS service without rebooting, run: ''sudo systemctl start sbbs''
-   * **Environment**. In order to avoid having multiple files, you can embed the variables inside the service file. +
-   * **PermissionsStartOnly**. This one tells systemd to execute ExecStartPre as root, but ExecStart as the user and group declared in User,Group. +
-   * **ExecStartPre**. For some weird reason, capabilities are frequently lost from the sbbs executable. It is possible to mitigate the effect by running setcap just before the daemon is ran. The binding won't fail anymore using this. Please notice you can't point a symlink here, so modify the architecture directory to the right path (gcc.linux.x64.exe.release or gcc.linux.exe.release). +
-   * **ExecStart**. If you don't want to get syslog entries duplicated you will have to run SBBS in daemonized mode, so the "d" parameter is used. Syslog is implicit when daemonized, so there is no need for additional parameters.  +
-   * **RestartSec**. It's advisable to wait some secs before attempting restarting in case of failure, just to give some time for binding release.+
  
-Installation instructions: +Any necessary edits should be made using ''sudo systemctl edit sbbs'', thus creating the file: 
-  -Modify the environment variables to match your SBBS setup +  /etc/systemd/system/sbbs.service.d/override.conf 
-  -Modify User and Group. If you run this as root you don't need the ExecStartPre line. +This will allow you to integrate any future upstream changes to the ''sbbs.service'' file without losing your local changes.
-  -Modify the ExecStart and ExecStartPre paths to match your Synchronet setup. +
-  -Place this file in the correct location. For Ubuntu 16.04 you should place it in /lib/systemd/system +
-  -Enable the service with "systemctl enable sbbs" +
-  -To run the service without restarting "systemctl start sbbs"+
  
-Running //systemctl status sbbs// will show:+After editing the ''sbbs.service'' or ''overrride.conf'' file, execute the following command to tell systemd to reload the unit files: 
 +  sudo systemctl daemon-reload
  
-  ● sbbs.service - Synchronet BBS service +==== Recommended Tweaks to the Service Section ==== 
-    Loaded: loaded (/lib/systemd/system/sbbs.service; enabled; vendor preset: enabled) +To allow core file generation (for crash/segfault debugging), add to the ''[Service]'' section of your service unit file:
-    Active: active (running) since Thu 2016-12-15 20:20:43 CET; 16s ago +
-      Docs: man:sbbs +
-   Process: 12364 ExecStart=/sbbs/exec/sbbs d (code=exited, status=0/SUCCESS) +
-   Process: 12356 ExecStartPre=/sbin/setcap cap_net_bind_service=+ep /sbbs/src/sbbs3/gcc.linux.x64.exe.release/sbbs (code=exited, status +
-  Main PID: 12374 (sbbs) +
-     Tasks: 11 +
-    Memory: 30.1M +
-       CPU: 223ms +
-    CGroup: /system.slice/sbbs.service +
-            └─12374 /sbbs/exec/sbbs d +
-   +
-  Dec 15 20:23:25 HISPAMSX sbbs[1226]: term Node 1 Telnet  ------- [----------] +
-  Dec 15 20:23:31 HISPAMSX sbbs[1226]: term Node 1 Terminal not detected, reducing inactivity hang-up timeout to 75 seconds +
-  Dec 15 20:23:36 HISPAMSX sbbs[1226]: term Node 1 Unknown User 'Enable' +
-  Dec 15 20:24:02 HISPAMSX sbbs[1226]: term Node 1 disconnected +
-  Dec 11 20:24:03 HISPAMSX sbbs[1226]: term Node 1 thread terminated (0 node threads remain, 71 clients served)+
  
 +<file sbbs.service>
 +LimitCORE=infinity
 +</file>
  
-===== Debian & CentOS 7 ===== +==== Where is My Service File? ====
  
-/etc/default/sbbs +If you are already running Synchronet from systemd but can't remember where the config file is, the following commands will help.
-  SBBSCTRL=/sbbs/ctrl+
  
-/etc/systemd/system/sbbs.service  +  systemctl show -p FragmentPath sbbs 
-  [Unit] + 
-  Description=Synchronet BBS + 
-  Documentation=man:sbbs +===== Control ===== 
-  After=network.target+ 
 +To start the Synchronet service 
 +  systemctl start sbbs 
 + 
 +To restart (stop and then start) the Synchronet service 
 +  systemctl restart sbbs
      
-  [Service] +To stop the Synchronet service 
-  Restart=on-failure +  systemctl stop sbbs
-  EnvironmentFile=-/etc/default/sbbs +
-  ExecStart=/sbbs/exec/sbbs nd +
-  ExecReload=/bin/kill -HUP $MAINPID +
-  User=root +
-  Group=root+
      
-  [Install] +===== Monitor =====
-  WantedBy=multi-user.target+
  
 +Display the current Synchronet service status:
 +  systemctl status sbbs
 +  
 +Watch the current Synchronet service status in real-time:
 +  watch systemctl status sbbs
 +  
 +Read/search the log output of the Synchronet service:
 +  journalctl -u sbbs
 +  
 +Watch the log output of the Synchronet service in real-time:
 +  journalctl -f -u sbbs
  
-Finally, you must execute //systemd daemon-reload// for tell systemd te reload the unit file+==== Monitoring with Byobu (Tmux backend) ==== 
 +You can have a text mode dashboard for monitoring and configuring your BBS realtime by using Byobu with Tmux or GNU Screen backends. If you are using the Tmux backend. The following configuration splits your screen in three panes: one for SBBS log, other for UMONITOR and a last one for SCFG. Please note that this configuration assumes SBBSCTRL variable is set and that access permissions to the needed files are set for the current user.
  
-Test your setup:+Create the file ''$BYOBU_CONFIG_DIR/windows.tmux.sbbs'' with the following contents:
  
-  # systemctl status sbbs +  new-session sbbs ; 
-  ● sbbs.service - Synchronet BBS +  new-window -n sbbs tail -n 50 -f /var/log/sbbs.log ; 
-     Loaded: loaded (/etc/systemd/system/sbbs.service; enabled) +  split-window -h /sbbs/exec/umonitor ; 
-     Active: active (running) since lun 2016-11-21 14:39:53 ART; 24min ago +  split-window -t 1 -v /sbbs/exec/scfg ; 
-       Docs: man:sbbs +  set-option mouse on
-    Process: 14393 ExecStart=/sbbs/exec/sbbs nd (code=exited, status=0/SUCCESS) +
-   Main PID: 14393 (sbbs) +
-     CGroup: /system.slice/sbbs.service +
-             └─14393 /sbbs/exec/sbbs nd +
-   +
-  nov 21 14:39:53 scarlet systemd[1]: Started Synchronet BBS.+
  
 +And then run: ''user@localhost:~$ BYOBU_WINDOWS=sbbs byobu''
  
-===== Debian (alternative using tmux) =====+If you want this to be your default environment when you log at your Synchronet server, then write the configuration to the ''$BYOBU_CONFIG_DIR/windows.tmux'' file instead of ''$BYOBU_CONFIG_DIR/windows.tmux.sbbs'' 
 + 
 +The following screenshot shows the result: 
 + 
 +{{:monitor:sbbs_monitor_byobu.png?200|}} 
 + 
 +If are using also **binkd** for FidoNet, this configuration will split the dashboard in 4 panes: 
 + 
 +  new-session sbbs ; 
 +  new-window -n sbbs tail -n 50 -f /var/log/sbbs.log ; 
 +  split-window -p 50 -h /sbbs/exec/umonitor ; 
 +  split-window -t 0 -p 20 -v tail -f /var/log/binkd.log ; 
 +  split-window -t 1 -v /sbbs/exec/scfg ; 
 +  set-option mouse on 
 + 
 +{{:monitor:sbbs_monitor_byobu_4pane.png?200|}} 
 + 
 +==== Debian (alternative using tmux) ====
  
 You can use [[https://en.wikipedia.org/wiki/Tmux|Tmux]] to still the Synchronet BBS console running on a screen that can be attached when you need You can use [[https://en.wikipedia.org/wiki/Tmux|Tmux]] to still the Synchronet BBS console running on a screen that can be attached when you need
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 {{:howto:sbbs_tmux.png?200|}} {{:howto:sbbs_tmux.png?200|}}
- 
-===== Recommended Tweaks to the Service Section === 
-Add these to the ''[Service]'' section: 
- 
-To increase the open file limit: 
-  LimitNOFILE=10000 
- 
-To allow core file generation (for crash/segfault debugging: 
-  LimitCORE=infinity 
  
 ===== See Also ===== ===== See Also =====
   * [[:howto:|howto index]]   * [[:howto:|howto index]]
 +  * [[https://gitlab.synchro.net/main/sbbs/-/raw/master/install/systemd/ircd.service|ircd service unit file]] - to run the Synchronet ircd separately from sbbs, as a systemd service, using JSexec 
 +  * [[https://synchronetbbs.org/index.php/downloads]] - Alternate startup script that uses "screen" rather than tmux and restarts the server if it should crash.
 {{tag>linux systemd}} {{tag>linux systemd}}
  

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