ftp connection limit on solaris 9

Posted on 2008-11-07
Last Modified: 2013-12-27
Is there an incoming connection limit to an ftp server?

      NAME:  FTP Server, (Root)
  CATEGORY:  system
      ARCH:  sparc
   VERSION:  11.9.0,REV=2002.

If there is a connection limit then what is it? where can I find config file where we could manipulate this number?

Thanks gurus,
Question by:z670193
    LVL 40

    Accepted Solution

    This would be a global limit on tcp connections.
    LVL 22

    Expert Comment

    In Solaris 9 and above, the ftpd server is a version of the wu-ftpd server. So, yes, you can limit the number of users. Take a look at the man page for ftpaccess, which documents the command syntax for the /etc/ftpd/ftpaccess file. It is fairly complex, because it offers quite a lot of felxibility. Read particularly the section about the "limit" keyword.

    Author Comment


    what is the default tcp connection session limit for solaris 9 then?

    LVL 22

    Expert Comment

    If there is no class limit defined, then there is no limit. You are limited by the number of TCP connection. In Solaris, there is no global limit to the number of TCP connections. In Solaris 9, there is a practical limit based on the number of ephemeral ports available. In Solaris 9, that limit is 32,767. Also, since each connection requires a process to service it and some kernel memory to hold the data structures, there is also a resource limit, but the resources used are pretty small. You can easily get into the 10's of thousands of simultaneous connections.

    What is it you are actually trying to do?

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