If your port requires a certain user to be on the installed system, let the pkg-install script call pw to create it automatically. Look at net/cvsup-mirror for an example.
If your port must use the same user/group ID number when it is installed as a binary package as when it was compiled, then you must choose a free UID from 50 to 999 and register it below. Look at japanese/Wnn6 for an example.
Make sure you do not use a UID already used by the system or other ports.
This is the current list of UIDs between 50 and 999.
bind:*:53:53:Bind Sandbox:/:/sbin/nologin majordom:*:54:54:Majordomo Pseudo User:/usr/local/majordomo:/nonexistent rdfdb:*:55:55:rdfDB Daemon:/var/db/rdfdb:/bin/sh cyrus:*:60:60:the cyrus mail server:/nonexistent:/nonexistent gnats:*:61:1:GNATS database owner:/usr/local/share/gnats/gnats-db:/bin/sh proxy:*:62:62:Packet Filter pseudo-user:/nonexistent:/nonexistent uucp:*:66:66:UUCP pseudo-user:/var/spool/uucppublic:/usr/libexec/uucp/uucico xten:*:67:67:X-10 daemon:/usr/local/xten:/nonexistent pop:*:68:6:Post Office Owner (popper):/nonexistent:/sbin/nologin wnn:*:69:7:Wnn:/nonexistent:/nonexistent pgsql:*:70:70:PostgreSQL pseudo-user:/usr/local/pgsql:/bin/sh oracle:*:71:71::0:0:Oracle:/usr/local/oracle7:/sbin/nologin ircd:*:72:72:IRC daemon:/nonexistent:/nonexistent ircservices:*:73:73:IRC services:/nonexistent:/nonexistent ifmail:*:75:66:Ifmail user:/nonexistent:/nonexistent www:*:80:80:World Wide Web Owner:/nonexistent:/sbin/nologin alias:*:81:81:QMail user:/var/qmail/alias:/nonexistent qmaild:*:82:81:QMail user:/var/qmail:/nonexistent qmaill:*:83:81:QMail user:/var/qmail:/nonexistent qmailp:*:84:81:QMail user:/var/qmail:/nonexistent qmailq:*:85:82:QMail user:/var/qmail:/nonexistent qmailr:*:86:82:QMail user:/var/qmail:/nonexistent qmails:*:87:82:QMail user:/var/qmail:/nonexistent mysql:*:88:88:MySQL Daemon:/var/db/mysql:/sbin/nologin vpopmail:*:89:89:VPop Mail User:/usr/local/vpopmail:/nonexistent firebird:*:90:90:Firebird Database Administrator:/usr/local/firebird:/bin/sh mailman:*:91:91:Mailman User:/usr/local/mailman:/sbin/nologin gdm:*:92:92:GDM Sandbox:/:/sbin/nologin jabber:*:93:93:Jabber Daemon:/nonexistent:/nonexistent p4admin:*:94:94:Perforce admin:/usr/local/perforce:/sbin/nologin interch:*:95:95:Interchange user:/usr/local/interchange:/sbin/nologin squeuer:*:96:96:SQueuer Owner:/nonexistent:/bin/sh mud:*:97:97:MUD Owner:/usr/local/share/dgd:/bin/sh msql:*:98:98:mSQL-2 pseudo-user:/var/db/msqldb:/bin/sh rscsi:*:99:99:Remote SCSI:/usr/local/rscsi:/usr/local/sbin/rscsi squid:*:100:100:squid caching-proxy pseudo user:/usr/local/squid:/sbin/nologin quagga:*:101:101:Quagga route daemon pseudo user:/usr/local/etc/quagga:/sbin/nologin ganglia:*:102:102:Ganglia User:/nonexistent:/sbin/nologin sgeadmin:*:103:103:Sun Grid Engine Admin:/nonexistent:/sbin/nologin slimserv:*:104:104:Slim Devices SlimServer pseudo-user:/nonexistent:/sbin/nologin dnetc:*:105:105:distributed.net client and proxy pseudo-user:/nonexistent:/sbin/nologin clamav:*:106:106:Clamav Antivirus:/nonexistent:/sbin/nologin cacti:*:107:107:Cacti Sandbox:/nonexistent:/sbin/nologin webkit:*:108:108:WebKit Default User:/usr/local/www/webkit:/bin/sh quickml:*:109:109:quickml Server:/nonexistent:/sbin/nologin fido:*:111:111:Fido System:/usr/local/fido:/bin/sh dcc:*:112:112:Distributed Checksum Clearinghouse:/nonexistent:/sbin/nologin postfix:*:125:125:Postfix Mail System:/var/spool/postfix:/sbin/nologin rbldns:*:153:153:rbldnsd pseudo-user:/nonexistent:/sbin/nologin sfs:*:171:171:Self-Certifying File System:/nonexistent:/sbin/nologin agk:*:172:172:AquaGateKeeper:/nonexistent:/nonexistent moinmoin:*:192:192:MoinMoin User:/nonexistent:/sbin/nologin ldap:*:389:389:OpenLDAP Server:/nonexistent:/sbin/nologin drweb:*:426:426:Dr.Web Mail Scanner:/nonexistent:/sbin/nologin courier:*:465:465:Courier Mail Server:/nonexistent:/sbin/nologin qtss:*:554:554:Darwin Streaming Server:/nonexistent:/sbin/nologin ircdru:*:555:555:Russian hybrid IRC server:/nonexistent:/bin/sh messagebus:*:556:556:D-BUS Daemon User:/nonexistent:/sbin/nologin bopm:*:717:717:Blitzed Open Proxy Monitor:/nonexistent:/bin/sh bacula:*:910:910:Bacula Daemon:/var/db/bacula:/sbin/nologin
This is the current list of reserved GIDs.
bind:*:53: rdfdb:*:55: cyrus:*:60: proxy:*:62: authpf:*:63: uucp:*:66: dialer:*:68: network:*:69: pgsql:*:70: www:*:80: qnofiles:*:81: qmail:*:82: mailman:*:91: dcc:*:112: postfix:*:125: maildrop:*:126: rbldns:*:153: moinmoin:*:192: courier:*:465: qtss:*:554: ircdru:*:555: messagebus:*:556: realtime:*:557: bopm:*:717:
Please include a notice when you submit a port (or an upgrade) that reserves a new UID or GID in this range. This allows us to keep the list of reserved IDs up to date.