xenial (1) sge_gethostname.1.gz

Provided by: gridengine-common_6.2u5-7.4_all bug

NAME
       sge_hostnameutils.1 - SGE Host name utilities

       gethostname   -
                 get local hostname.

       gethostbyname -
                 get local host information for specified hostname.

       gethostbyaddr -
                 get hostname via IP address.

       getservbyname -
                 get configured port number of service


SYNTAX
       gethostname [-help|-name|-aname|-all]

       gethostbyname [-help|-name|-aname|-all] <name>

       gethostbyaddr [-help|-name|-aname|-all] <ip>

       getservbyname [-help|-number] <service>


DESCRIPTION
       gethostname and gethostbyname are used to get the local resolved host name.  gethostbyaddr is used to get
       the hostname of a specified IP address (dotted decimal notation).  getservbyname can be used to  get  the
       configured port number of a service (e.g. from /etc/services).

       The  hostname  utils  are  primarily  used  by  the  Sun Grid Engine installation scripts.  gethostname ,
       gethostbyname and gethostbyaddr called without any option will print  out  the  hostname,  all  specified
       aliases,  and  the IP address of the locally resolved hostname.  Calling getservbyname without any option
       will print out the full service entry.


OPTIONS
   -help
       Prints a list of all options.

   -name
       This option only reports the primary name of the host.

   -aname
       If this option is set, the Sun Grid Engine host alias file  is  used  for  host  name  resolving.  It  is
       necessary to set the environment variable SGE_ROOT and, if more than one cell is defined, also SGE_CELL.

       This option will print out the Sun Grid Engine host name.

   -all
       By  using  the -all option all available host information will be printed.  This information includes the
       host name, the Sun Grid Engine host name, all host aliases, and the IP address of the host.

   -number
       This option will print out the port number of the specified service name.

   <name>
       The host name for which the information is requested.

   <ip>
       The IP address (dotted decimal notation) for which the information is requested.

   <service>
       The service name for which the information is requested (e.g. ftp, sge_qmaster or sge_execd).


EXAMPLES
       The following example shows how to get the port number of the FTP service:

              >getservbyname -number ftp
              21

       The next example shows the output of gethostname -all when the host alias file contains this line:

       gridmaster extern_name extern_name.mydomain

       The local host resolving must also provide the alias name "gridmaster". Each Sun Grid  Engine  host  that
       wants to use the cluster must be able to resolve the host name "gridmaster".

       To  setup  an alias name, edit your /etc/hosts file or modify your NIS setup to provide the alias for the
       NIS clients.

       The host alias file must be readable from each host (use e.g. NFS shared file location).

              >gethostname -all
              Hostname: extern_name.mydomain
              SGE name: gridmaster
              Aliases:  loghost gridmaster
              Host Address(es): 192.168.143.99


ENVIRONMENTAL VARIABLES
       SGE_ROOT       Specifies the location of the Sun Grid Engine standard configuration files.

       SGE_CELL       If set, specifies the default Sun Grid Engine cell.


SEE ALSO
       sge_intro(1), host_aliases(5),


       See sge_intro(1) for a full statement of rights and permissions.