On Sat, Aug 15, 2015 at 11:02 PM, Niels Peen <niels at peen.ch> wrote: > Hi, > The ocserv manual mentions this: > ... > # The following parameters are passed on the environment. > # REASON, USERNAME, GROUPNAME, HOSTNAME (the hostname selected by client), > ? > > But it?s unclear to me what would fill the HOSTNAME variable. In my setup it?s always empty. I was hoping it would contain the hostname that the client intended to connect to, though I?m not sure if that?s known to the server. No, it is the value from X-CSTP-Hostname, that is, the hostname the client would like to map his IP address to. regards, Nikos