Synchronet v3.21e-Win32 (install) has been released (Mar-2026).

You can donate to the Synchronet project using PayPal.

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
howto:linux_non-root [2018/01/14 13:04] – [See Also] Added tags digital manhowto:linux_non-root [2023/03/09 10:40] (current) – add link to systemd unit file digital man
Line 1: Line 1:
-====== Linux Non-root ======+====== Start Synchronet on Linux as a Non-root user ====== 
 + 
 +===== systemd ===== 
 +If you're running any kind of recent (last 2yrs+) systemd, just put this line in the ''[Service]'' section of your ''[[https://gitlab.synchro.net/main/sbbs/-/blob/master/install/systemd/sbbs.service|sbbs.service]]'' file, if it isn't already:\\ 
 +''**AmbientCapabilities=CAP_NET_BIND_SERVICE**''
  
 ===== setcap ===== ===== setcap =====
-''setcap'' may be used to allow Synchronet (''sbbs'') for Linux to run completely as **non-root** user by explicitly allowing the binary to bind low ports using the command-line:+''setcap'' may be used to allow Synchronet (''sbbs'') for Linux to run completely as a **non-root** user by explicitly allowing the binary to bind low ports using the command-line:
  
-<code>sudo /sbin/setcap 'cap_net_bind_service=ep' /sbbs/exec/sbbs</code>+  $ sudo /sbin/setcap 'cap_net_bind_service=+ep' `realpath /sbbs/exec/sbbs`
  
-This must be ran on the executable file itself (if ''/sbbs/exec/sbbs'' is a symlink, apply it to the target of the link instead). For example: +This will need to be re-ran any time the binary is rebuilt and can be automated by adding the ''setcap'' target to your ''make'' command-line executed in ''src/sbbs3'': 
-  sudo setcap 'cap_net_bind_service=ep' ~/sbbs/src/sbbs3/gcc.linux.exe.release/sbbs+  $ make RELEASE=1 setcap symlinks 
 +   
 +To confirm the bind capabilities were set successfully, run: 
 +  $ sudo getcap `realpath /sbbs/exec/sbbs` 
 +  /path/to/sbbs = cap_net_bind_service+ep 
 +===== authbind =====
  
-This will need to be re-ran any time the binary is rebuilt (and remember to properly reference ''.debug'' or ''.release'').+An alternative may be to use authbind. 
  
-This requires that the [[https://packages.debian.org/stable/libcap2-dev|libcap2-dev]] package be installed prior to building ''sbbs'' (or perform a //clean// build of ''sbbs'' after installing ''libcap2-dev''). See [[install:nix:prerequisites]] for details.+Install authbind using your favorite package manager for your Linux Distribution. 
 + 
 +Configure it to grant access to the relevant ports, e.g. to allow 80, 21, 23,25, 110, etc 443 from all users and groups: 
 + 
 +  sudo touch /etc/authbind/byport/80 
 + 
 +  sudo touch /etc/authbind/byport/443 
 + 
 +and so forth for all ports you are using below 1025 ... 
 + 
 +  sudo chmod 777 /etc/authbind/byport/80 
 + 
 +  sudo chmod 777 /etc/authbind/byport/443 
 + 
 +and so forth for all ports you are using below 1025 
 + 
 +Now execute your command via authbind (optionally specifying --deep or other arguments, see the man page): 
 + 
 +  sudo authbind --deep /sbbs/exec/sbbs -d
  
-===== authbind ===== 
  
-An alternative may be to use authbind. 
  
-A detailed example should be added here. 
  
 ===== See Also ===== ===== See Also =====

Trace: