gdalserver --version (return code: 0)
GDAL 2.2.1, released 2017/06/23
gdalserver --help (return code: 1)
Usage: gdalserver [--help-general] [--help] [-v] [-tcpserver port | -unixserver filename | -stdinout | [-pipe_in fdin,fdtoclose -pipe_out fdout,fdtoclose]] [-nofork] -tcpserver : Launch a TCP server on the specified port that can accept. connections from GDAL clients. -stdinout : This mode is not meant at being directly used by a user. It is a helper utility for the client/server working of GDAL. -pipe_in/out:This mode is not meant at being directly used by a user. It is a helper utility for the client/server working of GDAL. -nofork :This mode enables sharing of datasets among several clients, for example in concurrent write scenarios. But in that mode, only one thread is used, reducing scalability and client isolation.