UID GID Assignment Table
From Gentoo Wiki
| Name | UID | GID | Provider | Notes |
|---|---|---|---|---|
| root | 0 | 0 | baselayout (linux) | |
| root | 0 | - | baselayout (fbsd) | |
| toor | 0 | - | baselayout (fbsd) | |
| wheel | - | 0 | baselayout (fbsd) | |
| bin | 1 | 1 | baselayout (linux) | |
| daemon | 1 | 1 | baselayout (fbsd) | |
| daemon | 2 | 2 | baselayout (linux) | |
| operator | 2 | 5 | baselayout (fbsd) | |
| adm | 3 | 4 | baselayout (linux) | |
| bin | 3 | 7 | baselayout (fbsd) | |
| sys | - | 3 | baselayout (linux) | |
| sys | - | 3 | baselayout (fbsd) | |
| lp | 4 | 7 | baselayout (linux) | |
| tty | 4 | 4 | baselayout (fbsd) | |
| adm | - | 4 | g:adm | |
| sync | 5 | - | baselayout (linux) | |
| kmem | 5 | 2 | baselayout (fbsd) | |
| tty | - | 5 | baselayout (linux) | |
| tty | - | 5 | g:tty | |
| shutdown | 6 | - | baselayout (linux) | |
| 6 | 6 | baselayout (fbsd) | ||
| disk | - | 6 | g:disk | |
| disk | - | 6 | baselayout (linux) | |
| halt | 7 | - | baselayout (linux) | |
| games | 7 | - | baselayout (fbsd) | |
| lp | - | 7 | g:lp | |
| news | 8 | 8 | baselayout (fbsd) | |
| 8 | 12 | u:mail g:mail | mail user and group removed from baselayout on Linux in r3093 | |
| mem | - | 8 | baselayout (linux) | |
| man | 9 | - | baselayout (fbsd) | |
| news | 9 | 13 | baselayout (linux) | |
| kmem | - | 9 | g:kmem | |
| kmem | - | 9 | baselayout (linux) | |
| man | - | 9 | historical | man group removed from baselayout on BSD in r2528, now on GID 15. |
| uucp | 10 | 14 | baselayout (linux) | |
| wheel | - | 10 | g:wheel | |
| wheel | - | 10 | baselayout (linux) | |
| operator | 11 | - | baselayout (linux) | |
| floppy | - | 11 | baselayout (linux) | |
| man | 13 | 15 | u:man g:man | Moved out of baselayout in [r2528] and before in https://sources.gentoo.org/cgi-bin/viewvc.cgi/baselayout/trunk/share.Linux/passwd?limit_changes=0&r1=1397&r2=1474&pathrev=2545 r1474 |
| postmaster | 14 | - | u:postmaster | Removed from baselayout in r3093 |
| cron | 16 | 16 | user.eclass | Removed from baselayout in r1476 |
| console | - | 17 | baselayout (linux) | |
| audio | - | 18 | g:audio | Duplicated in media-sound/{pulseaudio,timidity}. |
| audio | - | 18 | baselayout (linux) | |
| cdrom | - | 19 | g:cdrom | |
| cdrom | - | 19 | baselayout (linux) | |
| dialout | - | 20 | g:dialout | |
| dialout | - | 20 | baselayout (linux) | Historically removed from baselayout in r2444, then reintroduced |
| ftp | 21 | 21 | u:ftp g:ftp | Removed from baselayout in r1475 |
| sshd | 22 | 22 | user.eclass | Removed from baselayout in r1476 |
| smmsp | 25 | - | baselayout (fbsd) | |
| at | 25 | 25 | user.eclass | Removed from baselayout in r1479 |
| smtpd | 25 | 25 | user.eclass | |
| smmsp | - | 25 | historical | Removed from baselayout in r2528 |
| tape | - | 26 | g:tape | |
| tape | - | 26 | baselayout (linux) | |
| video | - | 27 | g:video | |
| video | - | 27 | baselayout (linux) | |
| render | - | 28 | g:render | |
| squid | 31 | 31 | historical | Removed from baselayout in r1477 |
| guest | - | 31 | baselayout (fbsd) | |
| gdm | 32 | 32 | historical | Removed from baselayout in r1571 |
| xfs | 33 | 33 | historical | X Font Server, removed from baselayout in r1572 |
| games | 35 | - | historical | Removed from baselayout in r1478 |
| games | 36 | 35 | user.eclass | Names configurable via eclass; group: deprecated by Council decision, removed from baselayout in r1478 |
| gamestat | - | 36 | g:gamestat | |
| named | 40 | 40 | user.eclass | Removed from baselayout in r1369 |
| tor | 43 | 43 | u:tor g:tor | |
| mpd | 45 | - | u:mpd | |
| knot | 53 | 53 | u:knot g:knot | |
| tss | 59 | 59 | u:tss g:tss | |
| mysql | 60 | 60 | u:mysql g:mysql | Removed from baselayout in r1335 |
| avahi | 61 | 61 | u:avahi g:avahi | |
| avahi-autoipd | 62 | 62 | u:avahi-autoipd g:avahi-autoipd | |
| authpf | - | 63 | user.eclass | |
| netdev | - | 64 | g:netdev | |
| uucp | 66 | 65 | baselayout (fbsd) | |
| duende | 66 | - | user.eclass | |
| dialer | - | 68 | baselayout (fbsd) | |
| network | - | 69 | baselayout (fbsd) | |
| postgres | 70 | 70 | user.eclass | Moved out of baselayout in r1861 |
| dovenull | 74 | 74 | u:dovenull g:dovenull | |
| redis | 75 | 75 | user.eclass | |
| dovecot | 76 | 76 | u:dovecot g:dovecot | |
| qemu | 77 | 77 | u:qemu g:qemu | |
| kvm | - | 78 | g:kvm | |
| libvirt | - | 79 | g:libvirt | |
| cdrw | - | 80 | baselayout (linux) | |
| apache | 81 | 81 | user.eclass | Removed from baselayout in r916 |
| nginx | 82 | 82 | requested | |
| nut | 84 | 84 | user.eclass | Removed from baselayout in r1862 |
| cyrus | 85 | - | historical | Removed from baselayout in r1326 |
| usb | - | 85 | baselayout (linux) | |
| nullmail | 88 | 88 | user.eclass | |
| vpopmail | 89 | 89 | u:vpopmail g:vpopmail | Removed from baselayout in r1319 |
| partimag | 91 | 91 | user.eclass | |
| dovecot | 97 | 97 | user.eclass | |
| input | - | 97 | g:input | |
| input | - | 97 | baselayout (linux) | |
| maradns | 99 | 99 | user.eclass | |
| users | - | 100 | baselayout (linux) | |
| users | - | 100 | baselayout (fbsd) | |
| messagebus | 101 | 101 | u:messagebus g:messagebus | |
| polkitd | 102 | 102 | u:polkitd g:polkitd | |
| lpadmin | - | 106 | user.eclass | |
| rpc | 111 | 111 | historical | Used by net-nds/portmap, removed in 36e60cce11d7 |
| unifi | 113 | 113 | u:unifi g:unifi | |
| mythtv | 117 | 117 | u:mythtv g:mythtv | |
| murmur | 122 | 122 | u:murmur g:murmur | |
| ntp | 123 | 123 | u:ntp g:ntp | |
| rtkit | 133 | 133 | u:rtkit g:rtkit | |
| owfs | 150 | 150 | user.eclass | Ebuild allows overriding username. |
| stapusr | - | 156 | user.eclass | |
| stapsys | - | 157 | user.eclass | |
| stapdev | - | 158 | user.eclass | |
| inspircd | 167 | 167 | u:inspircd g:inspircd | |
| transmission | 169 | 169 | u:transmission g:transmission | |
| munin | 177 | - | user.eclass | |
| elasticsearch | 183 | 183 | u:elasticsearch g:elasticsearch | |
| pdnsd | 184 | 184 | u:pdnsd g:pdnsd | |
| systemd-journal | - | 190 | g:systemd-journal | |
| systemd-journal-remote | 191 | 191 | u:systemd-journal-remote g:systemd-journal-remote | |
| systemd-network | 192 | 192 | u:systemd-network g:systemd-network | |
| systemd-resolve | 193 | 193 | u:systemd-resolve g:systemd-resolve | |
| systemd-coredump | 194 | 194 | u:systemd-coredump g:systemd-coredump | |
| systemd-timesync | 195 | 195 | u:systemd-timesync g:systemd-timesync | |
| git | 196 | 196 | u:git g:git | |
| alias | 200 | - | u:alias | Removed from baselayout in r1397 |
| nofiles | - | 200 | g:nofiles | Removed from baselayout in r2445 |
| qmaild | 201 | - | u:qmaild | Removed from baselayout in r1397 |
| qmail | - | 201 | g:qmail | Removed from baselayout in r1397 |
| qmaill | 202 | - | u:qmaill | Removed from baselayout in r1397 |
| qmailp | 203 | - | u:qmailp | Removed from baselayout in r1397 |
| qmailq | 204 | - | u:qmailq | Removed from baselayout in r1397 |
| qmailr | 205 | - | u:qmailr | Removed from baselayout in r1397 |
| qmails | 206 | - | u:qmails | Removed from baselayout in r1397 |
| postfix | 207 | 207 | u:postfix g:postfix | Removed from baselayout in r1863 |
| postdrop | - | 208 | g:postdrop | Removed from baselayout in r1863 |
| smmsp | 209 | 209 | user.eclass | user removed out of baselayout in r2446; group in r2445 |
| cmd5checkpw | 212 | 212 | u:cmd5checkpw g:cmd5checkpw | |
| uptimed | 220 | 220 | u:uptimed g:uptimed | |
| gkrellmd | 221 | 221 | u:gkrellmd g:gkrellmd | |
| msmtpd | 222 | 222 | u:msmtpd g:msmtpd | |
| nsd | 223 | 223 | u:nsd g:nsd | |
| tox | 236 | 236 | u:tox g:tox | |
| rspamd | 237 | 237 | requested | |
| distcc | 240 | - | user.eclass | |
| asterisk | 242 | 242 | u:asterisk g:asterisk | |
| slocate | - | 245 | historical | Removed from baselayout in r1328 |
| portage | 250 | 250 | baselayout (linux) | |
| portage | 250 | 250 | baselayout (fbsd) | |
| smtpq | 252 | 252 | user.eclass | |
| tomcat | 265 | 265 | user.eclass | |
| kibana | 269 | 269 | u:kibana g:kibana | |
| ceph | 267 | 267 | u:ceph g:ceph | |
| logstash | 270 | 270 | u:logstash g:logstash | |
| spire | 271 | 271 | u:spire g:spire | |
| plugdev | - | 272 | g:plugdev | |
| bacula | 273 | 273 | u:bacula g:bacula | |
| dnsmasq_exporter | 274 | 274 | u:dnsmasq_exporter g:dnsmasq_exporter | |
| netdata | 290 | 290 | u:netdata g:netdata | |
| openntpd | 321 | 321 | u:openntpd g:openntpd | |
| amavis | 333 | 333 | requested | |
| opendkim | 334 | 334 | u:opendkim g:opendkim | |
| epmd | 335 | 335 | u:epmd g:epmd | |
| sqlgrey | 336 | 336 | requested | |
| stunnel | 341 | 341 | requested | |
| dnscrypt-proxy | 353 | 353 | u:dnscrypt-proxy g:dnscrypt-proxy | |
| slurm | 400 | 400 | u:slurm g:slurm | |
| guest | 405 | - | historical | Removed from baselayout in r889 |
| utmp | - | 406 | g:utmp | |
| utmp | - | 406 | baselayout (linux) | |
| ldap | 439 | 439 | user.eclass | |
| collectd | 440 | 440 | requested | |
| firebird | 450 | 450 | user.eclass | |
| redmine | 451 | 451 | u:redmine g:redmine | |
| vdr | 452 | 452 | requested | |
| vdradmin | 453 | 453 | requested | |
| deluge | 454 | 454 | u:deluge g:deluge | |
| mogilefs | 460 | - | user.eclass | |
| i2pd | 470 | 470 | u:i2pd g:i2pd | |
| i2p | 471 | 471 | u:i2p g:i2p | |
| suricata | 477 | 477 | requested | |
| graylog | 478 | 478 | u:graylog g:graylog | |
| openrct2 | 479 | 479 | u:openrct2 g:openrct2 | |
| minetest | 480 | 480 | u:minetest g:minetest | |
| mongodb | 481 | 481 | u:mongodb g:mongodb | |
| mosquitto | 482 | 482 | u:mosquitto g:mosquitto | |
| bitcoin | 483 | 483 | u:bitcoin g:bitcoin | |
| ipfs | 484 | 484 | u:ipfs g:ipfs | |
| bedrock | 485 | 485 | u:bedrock g:bedrock | |
| spectrum | 486 | 486 | u:spectrum g:spectrum | |
| ddclient | 487 | 487 | u:ddclient g:ddclient | |
| teamspeak | 488 | 488 | u:teamspeak g:teamspeak | |
| steamcmd | 489 | 489 | u:steamcmd g:steamcmd | |
| minecraft | 490 | 490 | u:minecraft g:minecraft | |
| fhem | 491 | 491 | u:fhem g:fhem | |
| oprofile | 492 | 492 | requested | provisional, same id as archlinux |
| oidentd | 493 | 493 | requested | |
| unrealircd | 494 | 494 | u:unrealircd g:unrealircd | |
| gvm | 495 | 495 | u:gvm g:gvm | |
| strelaysrv | 496 | 496 | u:strelaysrv g:strelaysrv | |
| stdiscosrv | 497 | 497 | u:stdiscosrv g:stdiscosrv | |
| burp | 498 | 498 | u:burp g:burp | |
| syncthing | 499 | 499 | u:syncthing g:syncthing | |
| slurm | 500 | 500 | historical | Moved to 400 |
| - | 500..999 | 500..999 | reserved | Dynamic allocation by user.eclass. Do not use! |
| - | 1000..60000 | 1000..60000 | reserved | `UID_MIN`..`UID_MAX` / `GID_MIN`..`GID_MAX` in login.defs |
| ventrilo | 3784 | 3784 | historical | Used by media-sound/ventrilo-server-bin, removed in 15c6a556cef2 |
| - | 60001..65533 | 60001..65532 | reserved | |
| nogroup | - | 65533 | baselayout (linux) | |
| nogroup | - | 65533 | baselayout (fbsd) | |
| nobody | 65534 | 65534 | baselayout (linux) | |
| nobody | 65534 | 65534 | baselayout (fbsd) | |
| - | 65535 | 65535 | reserved | -1 on systems with 16 bit uid_t |
| - | 61184..65519 | 61184..65519 | reserved | Used by systemd DynamicUser feature |
| - | 524288..1878982656 | 524288..1878982656 | reserved | Used by systemd for containers |