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ypxfr (1)
  • >> ypxfr (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • ypxfr (8) ( FreeBSD man: Команды системного администрирования )
  • ypxfr (8) ( Linux man: Команды системного администрирования )
  •  

    NAME

    ypxfr, ypxfr_1perday, ypxfr_1perhour, ypxfr_2perday - transfer NIS map from a NIS server to host
     
    

    SYNOPSIS

    /usr/lib/netsvc/yp/ypxfr [-c] [-f] [-C tid prog server] 
        [-d ypdomain] [-h host] [-s ypdomain] mapname
    

     

    DESCRIPTION

    The ypxfr command moves an NIS map in the default domain for the local host to the local host by making use of normal NIS services. It creates a temporary map in the directory /var/yp/ypdomain (this directory must already exist; ypdomain is the default domain for the local host), fills it by enumerating the map's entries, fetches the map parameters (master and order number), and loads them. It then deletes any old versions of the map and moves the temporary map to the real name.

    If run interactively, ypxfr writes its output to the terminal. However, if it is started without a controlling terminal, and if the log file /var/yp/ypxfr.log exists, it appends all its output to that file. Since ypxfr is most often run from the privileged user's crontab file, or by ypserv, the log file can retain a record of what was attempted, and what the results were.

    For consistency between servers, ypxfr should be run periodically for every map in the NIS data base. Different maps change at different rates: a map might not change for months at a time, for instance, and can therefore be checked only once a day. Some maps might change several times per day. In such a case, you might want to check hourly for updates. A crontab(1) entry can be used to automatically perform periodic updates. Rather than having a separate crontab entry for each map, you can group commands to update several maps in a shell script. Examples (mnemonically named) are in /usr/sbin/yp: ypxfr_1perday, ypxfr_2perday, and ypxfr_1perhour.

    Refer to ypfiles(4) for an overview of the NIS name service.  

    OPTIONS

    -c

    Do not send a "Clear current map" request to the local ypserv process. Use this flag if ypserv is not running locally at the time you are running ypxfr. Otherwise, ypxfr complains that it cannot communicate with the local ypserv, and the transfer fails.

    -f

    Force the transfer to occur even if the version at the master is not more recent than the local version.

    -C tid prog server

    This option is for use only by ypserv. When ypserv starts ypxfr, it specifies that ypxfr should call back a yppush process at the host server, registered as program number prog, and waiting for a response to transaction tid.

    -d ypdomain

    Specify a domain other than the default domain.

    -h host

    Get the map from host, regardless of the master. If host is not specified, ypxfr asks the NIS service for the name of the master, and tries to get the map from there. host must be a valid host name.

    -s ypdomain

    Specify a source domain from which to transfer a map that should be the same across domains.

     

    FILES

    /var/yp/ypxfr.log

    Log file

    /usr/lib/netsvc/yp/ypxfr_1perday

    Script to run one transfer per day, for use with cron(1M)

    /usr/lib/netsvc/yp/ypxfr_2perday

    Script to run two transfer per day, for use with cron(1M)

    /usr/lib/netsvc/yp/ypxfr_1perhour

    Script for hourly transfers of volatile maps

    /var/yp/ypdomain

    NIS domain

    /usr/spool/cron/crontabs/root

    Privileged user's crontab file

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:  

    ypxfr Only

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWnisu

     

    ypxfr_1perday, ypxfr_1perhour, and ypxfr_2perday

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWypu

     

    SEE ALSO

    crontab(1), cron(1M), ypinit(1M), yppush(1M), ypserv(1M), ypfiles(4), attributes(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    FILES
    ATTRIBUTES
    ypxfr Only
    ypxfr_1perday, ypxfr_1perhour, and ypxfr_2perday
    SEE ALSO


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