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

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
Next revisionBoth sides next revision
faq:nix [2018/02/13 12:41] – [Ports Below 1024 Without Root On Linux] Add reference to Linux non-root page deucefaq:nix [2020/03/22 00:49] – [Disk Space] Bloaty bloaty digital man
Line 19: Line 19:
   * [[#Disk space|How much disk space is required]]?    * [[#Disk space|How much disk space is required]]? 
   * [[#TermType|What does an ''unknown terminal'' error indicate]]?   * [[#TermType|What does an ''unknown terminal'' error indicate]]?
-  * [[#ports_below_1024_without_root_on_linux|How can I bind to ports below 1024 without being root on Linux]]? 
      
 ===== Flavors ===== ===== Flavors =====
Line 170: Line 169:
  
 **Answer:**\\    **Answer:**\\   
-A fresh install (as of Feb-2009) requires about 70MBytes. +A fresh install (as of Mar-2020) from source code, requires about 500MBytes of space. 
-Much of the space consumed is in the form of intermediate build files which +Much of the space consumed is in the form of intermediate build files which may be removed after the build is complete if space is a concern.
-may be removed after the build is complete if space is a concern.+
  
  
Line 192: Line 190:
  
 To elaborate, [[util:SBBSecho]] uses ''tempnam'' for a specific purpose, which ''mkstemp'' does not do. Additionally ''mkstemp'' is not available in all the C libraries for all the platforms for which Synchronet is built. The //dangers// of ''tempnam'' do not apply to SBBSecho's use of the function. To elaborate, [[util:SBBSecho]] uses ''tempnam'' for a specific purpose, which ''mkstemp'' does not do. Additionally ''mkstemp'' is not available in all the C libraries for all the platforms for which Synchronet is built. The //dangers// of ''tempnam'' do not apply to SBBSecho's use of the function.
- 
-===== Ports Below 1024 Without Root On Linux ===== 
-**Question:**\\ 
-How can I bind to network ports below 1024 as a non-root user on Linux? 
- 
-**Answer:**\\ 
-By default, Linux does not allow non-root processes to bind to ports below 1024.  This was done as a security measure, although some argue that the reasons for this are obsolete.  It is often a bad practice to run processes as root unless it's really necessary to do so, and perhaps even more so with an Internet-accessible server.  Thus, it is often desirable to run servers on standard ports (below 1024) as a non-root user.  You can do so with the setcap command.  For example:\\ 
-  setcap cap_net_bind_service=+ep /sbbs/exec/sbbs 
- 
-For more information, see the following:\\ 
-[[howto:linux_non-root]]\\ 
-[[https://stackoverflow.com/questions/413807/is-there-a-way-for-non-root-processes-to-bind-to-privileged-ports-on-linux|StackOverflow: Is there a way for non-root processes to bind to “privileged” ports on Linux?]]\\ 
-[[https://www.jumpingbean.co.za/blogs/mark/run-application-port-below-1024-linux|How to bind to ports below 1024 without being root on Linux?]]\\ 
-[[https://www.staldal.nu/tech/2007/10/31/why-can-only-root-listen-to-ports-below-1024|Why can only root listen to ports below 1024?]] 
  
 ===== See Also ===== ===== See Also =====

Trace: