03-05-2012
Hi Spynappels,
The services that need to be accessible is VPN.
The operating system I'd like to use, is Linux (Centos or Ubuntu).
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LEARN ABOUT NETBSD
services_mkdb
SERVICES_MKDB(8) BSD System Manager's Manual SERVICES_MKDB(8)
NAME
services_mkdb -- generate the services databases
SYNOPSIS
services_mkdb [-qv] [-o database] [-V style] [file]
services_mkdb -u [file]
DESCRIPTION
services_mkdb creates a db(3) database for the specified file. If no file is specified, then /etc/services is used. The database is
installed into /var/db/services.cdb for CDB format and into /var/db/services.db for DB format (see -V). The file must be in the correct for-
mat (see services(5)).
The options are as follows:
-o database
Put the output databases in the named file.
-q Don't warn about duplicate services. This is the default behavior.
-u Print the services file to stdout, omitting duplicate entries and comments.
-V Create a specific version of the database style. style can be cdb to request the CDB format (default) or db to request the DB for-
mat. The DB format is useful for compatibility with old statically linked binaries.
-v Warn about duplicate services.
The databases are used by the C library services routines (see getservent(3)).
services_mkdb exits zero on success, non-zero on failure.
FILES
/var/db/services.db The current services database.
/var/db/services.db.tmp A temporary file.
/etc/services The current services file.
SEE ALSO
db(3), getservent(3), services(5)
BUGS
Because services_mkdb guarantees not to install a partial destination file it must build a temporary file in the same file system and if suc-
cessful use rename(2) to install over the destination file.
If services_mkdb fails it will leave the previous version of the destination file intact.
BSD
May 5, 2010 BSD