晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /proc/thread-self/root/scripts/

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Current File : //proc/thread-self/root/scripts/dnscluster
#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/dnscluster                      Copyright 2022 cPanel, L.L.C.
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

BEGIN {
    pop(@INC) if ( $INC[$#INC] eq '.' );
}

$| = 1;

use strict;
use Cpanel::DnsUtils::Sync ();
use Cpanel::Usage          ();

if ( !@ARGV ) {
    show_usage();
}
Cpanel::Usage::usage( \@ARGV, \&show_usage );

if ( !-e '/var/cpanel/useclusteringdns' ) {
    print STDERR "DNS Clustering is not enabled\n";
    exit 1;
}

my $action    = $ARGV[0];
my $full_sync = ( grep( /^\-?-f/i, @ARGV ) ? 1 : 0 );

if ( $action eq 'synczonelocal' ) {
    my $zone = $ARGV[1];
    if ( !$zone ) {
        show_usage();
    }
    synczonelocal($zone);
}
elsif ( $action eq 'synczone' ) {
    my $zone = $ARGV[1];
    if ( !$zone ) {
        show_usage();
    }
    synczone($zone);
}
elsif ( $action eq 'syncall' ) {
    syncall($full_sync);
}
elsif ( $action eq 'syncalllocal' || $action eq 'synclocal' ) {
    syncalllocal($full_sync);
}
else {
    show_usage();
    exit 1;
}

sub synczone {
    my $domain = shift;
    print "Syncing $domain to all machines in cluster...";
    my ( $response, $err ) = Cpanel::DnsUtils::Sync::sync_zone($domain);
    print $err ? $err : $response;
    print "Done\n";
}

sub synczonelocal {
    my $domain = shift;
    print "Syncing $domain to local machine...";

    my ( $response, $err ) = Cpanel::DnsUtils::Sync::sync_zone_local($domain);
    print $err ? $err : $response;
    print "Done\n";
}

sub syncall {
    my $full_sync = shift;
    print "Syncing Zones to all machines in cluster....";

    my $user_domains_only = ( $full_sync ? 0 : 1 );
    if ( !$user_domains_only ) { print "(full)..."; }

    if ( my $pid = fork() ) {
        while ( waitpid( $pid, 1 ) != -1 ) {
            syswrite( STDOUT, '.' );
            select( undef, undef, undef, 0.1 );
        }
    }
    else {

        # The default is to sync all domains in the cluster
        # for consistancy with previous behavior
        # full (!user_domains_only) then send 0
        # !full (user_domains_only) then send 1
        #
        Cpanel::DnsUtils::Sync::sync_zones($user_domains_only);
        exit(0);
    }
    print "Done\n";
}

sub syncalllocal {
    my $full_sync = shift;
    print "Syncing Zones to local machine....";

    my $user_domains_only = ( $full_sync ? 0 : 1 );
    if ( !$user_domains_only ) { print "(full)..."; }

    if ( my $pid = fork() ) {
        while ( waitpid( $pid, 1 ) != -1 ) {
            syswrite( STDOUT, '.' );
            select( undef, undef, undef, 0.1 );
        }
    }
    else {

        # The default is to sync all domains in the cluster
        # for consistancy with previous behavior
        # full (!user_domains_only) then send 0
        # !full (user_domains_only) then send 1
        #
        Cpanel::DnsUtils::Sync::sync_zones_local($user_domains_only);
        exit(0);
    }
    print "Done\n";
}

sub show_usage {
    print <<'EOM';
Usage: dnscluster [ACTION] [OPTIONS]...

Examples:
   /usr/local/cpanel/scripts/dnscluster syncall --full               # Sync all zones (even ones not in /etc/userdomains)
   /usr/local/cpanel/scripts/dnscluster synczonelocal mydomain.org   # Sync mydomain.org to the local machine

Actions:
    syncall [--full] - make sure all dns zones are
       in sync within the cluster. If any zone files
       are out out of sync, the ones with the largest
       serial numbers will be copied to all servers.

    syncalllocal [--full] - make sure all dns zones are
       in sync within the cluster. If any zone files are
       out out of sync, the ones with the largest serial
       numbers will be copied to the local server only.

    synczone <zone> - sync one zone
       If the zone is out out of sync, the one with the largest
       serial number will be copied to all servers.

    synczonelocal <zone> - sync one zone
       If the zone is out out of sync, the one with the largest
       serial number will be copied to the local server.

Operation modifiers:
    -F, --full
       If the --full flag is specified then zones that are not
       local to this server (in /etc/userdomains) will be pulled
       in as well.  This was the default behavior prior to 11.24.5

Help:
    -H, --help (or no arguments)
       This will show this screen.

EOM
    exit;
}

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