How can I find the full hostname (FQDN) of the system I am running on?
Answer Posted / chaitanya
Some systems set the hostname to the FQDN and others set it to just the unqualified host name. I know the current BIND FAQ recommends the FQDN, but most Solaris systems, for example, tend to use only the unqualified host name.
Regardless, the way around this is to first get the host's name (perhaps an FQDN, perhaps unaualified). Most systems support the Posix way to do this using uname(), but older BSD systems only provide gethostname(). Call gethostbyname() to find your IP address. Then take the IP address and call gethostbyaddr(). The h_name member of the hostent{} should then be your FQDN.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Why do I get EPROTO from read()?
What does af mean in sockets?
Why do we need socket programming?
Can a single socket port be used for multiple applications?
What is the function of socket?
What's better 6pt or 12pt sockets?
What is af_inet in socket?
How many sockets can a port have?
Why does the sockets buffer fill up sooner than expected?
How does a socket work?
What exactly is a socket?
Why do we need sockets?
How to find other end of unix socket connection?
Can multiple clients connect to same socket?
Where is the socket located?