install

一个开源的NTP客户端程序

vsntp Installation and Running Procedure

 1. Compilation and Installation Procedure

    vsntp uses standard GNU autoconf to compile and install:

     1. Download, unzip and untar the vsntp package:

      % tar xzf vsntp-x.x.x.tar.gz

     2. Go into its directory:

      % cd vsntp-x.x.x

     3. Configure with ./configure:

      % ./configure

     4. Compile with make:

      % make

        The resulted executable will be named "vsntp".

     5. You need to be root in order to install vsntp:

      % su
      Password:
      #

     6. You can simply copy vsntp to the appropriate directory:

      # cp vsntp /usr/local/sbin

        Or, you can run automatic install:

      # make install

        You can reduce the size of the installed executable by
        stripping off debug symbols inside:

      # make install-strip

        By default vsntp will be installed in /usr/local/sbin .

 2. Compilation and Installation Options

    GNU autoconf configure provides the following options:

  --prefix=PREFIX	install architecture-independent files in PREFIX
			[/usr/local]
  --exec-prefix=EPREFIX	install architecture-dependent files in EPREFIX
			[PREFIX]

  --bindir=DIR		user executables [EPREFIX/bin]
  --sbindir=DIR		system admin executables [EPREFIX/sbin]
  --libexecdir=DIR	program executables [EPREFIX/libexec]
  --datadir=DIR		read-only architecture-independent data [PREFIX/share]
  --sysconfdir=DIR	read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR	modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR	modifiable single-machine data [PREFIX/var]
  --libdir=DIR		object code libraries [EPREFIX/lib]
  --includedir=DIR	C header files [PREFIX/include]
  --oldincludedir=DIR	C header files for non-gcc [/usr/include]
  --infodir=DIR		info documentation [PREFIX/info]
  --mandir=DIR		man documentation [PREFIX/man]

    Type `./configure --help' for a detailed list of compilation options.

 3. Run

    You need to be root to run vsntp.  vsntp uses settimeofday() to
set the system time.  settimeofday() requires root privilege.

    To start vsntp, just specify your NTP server:

      # vsntp my.ntp.server.com

    vsntp writes its PID in /var/run/vsntp.pid.  To stop vsntp,
kill it by its PID:

      # kill `cat /var/run/vsntp.pid`

    The PID file location can be changed with the `-p' switch.