With "getent passwd | grep 1000" I get the same single entry as above.
This is a test system, not only there is no NIS and LDAP, but there is a single user right now.
/etc/passwd as follows
root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin bin:x:2:2:bin:/bin:/usr/sbin/nologin sys:x:3:3:sys:/dev:/usr/sbin/nologin sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/usr/sbin/nologin man:x:6:12:man:/var/cache/man:/usr/sbin/nologin lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin mail:x:8:8:mail:/var/mail:/usr/sbin/nologin news:x:9:9:news:/var/spool/news:/usr/sbin/nologin uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin proxy:x:13:13:proxy:/bin:/usr/sbin/nologin www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin backup:x:34:34:backup:/var/backups:/usr/sbin/nologin list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin syslog:x:101:102::/home/syslog:/bin/false messagebus:x:103:104::/var/run/dbus:/bin/false polkituser:x:104:105:PolicyKit,,,:/var/run/PolicyKit:/bin/false hplip:x:106:7:HPLIP system user,,,:/var/run/hplip:/bin/false avahi-autoipd:x:107:113:Avahi autoip daemon,,,:/var/lib/avahi-autoipd:/bin/false avahi:x:108:114:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false saned:x:109:117::/home/saned:/bin/false callegar:x:1000:1000:Sergio Callegari:/home/callegar:/bin/bash stunnel4:x:111:123::/var/run/stunnel4:/bin/false sshd:x:110:65534::/var/run/sshd:/usr/sbin/nologin pulse:x:112:119:PulseAudio daemon,,,:/var/run/pulse:/bin/false clamav:x:113:125::/var/lib/clamav:/bin/false postfix:x:102:103::/var/spool/postfix:/bin/false usbmux:x:114:46:usbmux daemon,,,:/home/usbmux:/bin/false rtkit:x:115:126:RealtimeKit,,,:/proc:/bin/false oprofile:x:116:127:OProfile JIT user,,,:/var/lib/oprofile:/bin/bash colord:x:105:106:colord colour management daemon,,,:/var/lib/colord:/bin/false dhcpd:x:118:135::/var/run:/bin/false timidity:x:119:136:TiMidity++ MIDI sequencer service:/etc/timidity:/bin/false dnsmasq:x:121:65534:dnsmasq,,,:/var/lib/misc:/bin/false whoopsie:x:122:128::/nonexistent:/bin/false dcmtk:x:117:139::/var/lib/dcmtk/db:/bin/sh uuidd:x:100:101::/run/uuidd:/bin/false gpsd:x:123:20:GPSD system user,,,:/run/gpsd:/bin/false systemd-timesync:x:124:142:systemd Time Synchronization,,,:/run/systemd:/bin/false systemd-network:x:125:143:systemd Network Management,,,:/run/systemd/netif:/bin/false systemd-resolve:x:126:144:systemd Resolver,,,:/run/systemd/resolve:/bin/false systemd-bus-proxy:x:127:145:systemd Bus Proxy,,,:/run/systemd:/bin/false kernoops:x:129:65534:Kernel Oops Tracking Daemon,,,:/:/bin/false speech-dispatcher:x:130:29:Speech Dispatcher,,,:/var/run/speech-dispatcher:/bin/false sddm:x:120:137:Simple Desktop Display Manager:/var/lib/sddm:/bin/false
Here is /etc/group
root:x:0: daemon:x:1: bin:x:2: sys:x:3: adm:x:4:callegar,syslog tty:x:5: disk:x:6: lp:x:7:callegar mail:x:8: news:x:9: uucp:x:10: man:x:12: proxy:x:13: kmem:x:15: dialout:x:20:callegar fax:x:21:callegar voice:x:22: cdrom:x:24:callegar floppy:x:25:callegar tape:x:26: sudo:x:27:callegar audio:x:29:pulse,timidity dip:x:30: www-data:x:33: backup:x:34: operator:x:37: list:x:38: irc:x:39: src:x:40: gnats:x:41: shadow:x:42: utmp:x:43: video:x:44: sasl:x:45: plugdev:x:46:callegar staff:x:50:callegar games:x:60: users:x:100: nogroup:x:65534: syslog:x:102:callegar messagebus:x:104: polkituser:x:105: fuse:x:107:callegar ssl-cert:x:108: lpadmin:x:109:callegar crontab:x:110: mlocate:x:111: ssh:x:112: avahi-autoipd:x:113: avahi:x:114: netdev:x:115: admin:x:116:callegar saned:x:117: callegar:x:1000: sambashare:x:118:callegar winbindd_priv:x:122: stunnel4:x:123: vboxusers:x:124:callegar pulse:x:119: pulse-access:x:120: clamav:x:125: postfix:x:103: postdrop:x:121: rtkit:x:126: oprofile:x:127: utempter:x:129: bluetooth:x:131: powerdev:x:132: colord:x:106: scanner:x:133:colord,callegar,saned _cvsadmin:x:134: pcscd:x:130: dhcpd:x:135: timidity:x:136: nopasswdlogin:x:138: whoopsie:x:128: dcmtk:x:139: uuidd:x:101: systemd-journal:x:140: systemd-journal-remote:x:141: systemd-timesync:x:142: systemd-network:x:143: systemd-resolve:x:144: systemd-bus-proxy:x:145: input:x:146: sddm:x:137:
With "getent passwd | grep 1000" I get the same single entry as above.
This is a test system, not only there is no NIS and LDAP, but there is a single user right now.
/etc/passwd as follows
root:x: 0:0:root: /root:/ bin/bash x:1:1:daemon: /usr/sbin: /usr/sbin/ nologin 2:bin:/ bin:/usr/ sbin/nologin 3:sys:/ dev:/usr/ sbin/nologin 4:65534: sync:/bin: /bin/sync 5:60:games: /usr/games: /usr/sbin/ nologin 12:man: /var/cache/ man:/usr/ sbin/nologin 8:8:mail: /var/mail: /usr/sbin/ nologin 9:9:news: /var/spool/ news:/usr/ sbin/nologin 10:10:uucp: /var/spool/ uucp:/usr/ sbin/nologin 13:13:proxy: /bin:/usr/ sbin/nologin x:33:33: www-data: /var/www: /usr/sbin/ nologin x:34:34: backup: /var/backups: /usr/sbin/ nologin 38:38:Mailing List Manager: /var/list: /usr/sbin/ nologin 39:ircd: /var/run/ ircd:/usr/ sbin/nologin :/var/lib/ gnats:/ usr/sbin/ nologin x:65534: 65534:nobody: /nonexistent: /usr/sbin/ nologin x:101:102: :/home/ syslog: /bin/false x:103:104: :/var/run/ dbus:/bin/ false x:104:105: PolicyKit, ,,:/var/ run/PolicyKit: /bin/false :/var/run/ hplip:/ bin/false x:107:113: Avahi autoip daemon, ,,:/var/ lib/avahi- autoipd: /bin/false 108:114: Avahi mDNS daemon, ,,:/var/ run/avahi- daemon: /bin/false 109:117: :/home/ saned:/ bin/false x:1000: 1000:Sergio Callegari: /home/callegar: /bin/bash x:111:123: :/var/run/ stunnel4: /bin/false 110:65534: :/var/run/ sshd:/usr/ sbin/nologin 112:119: PulseAudio daemon, ,,:/var/ run/pulse: /bin/false x:113:125: :/var/lib/ clamav: /bin/false x:102:103: :/var/spool/ postfix: /bin/false x:114:46: usbmux daemon, ,,:/home/ usbmux: /bin/false 115:126: RealtimeKit, ,,:/proc: /bin/false x:116:127: OProfile JIT user,,, :/var/lib/ oprofile: /bin/bash x:105:106: colord colour management daemon, ,,:/var/ lib/colord: /bin/false 118:135: :/var/run: /bin/false x:119:136: TiMidity+ + MIDI sequencer service: /etc/timidity: /bin/false x:121:65534: dnsmasq, ,,:/var/ lib/misc: /bin/false x:122:128: :/nonexistent: /bin/false 117:139: :/var/lib/ dcmtk/db: /bin/sh 100:101: :/run/uuidd: /bin/false :/run/gpsd: /bin/false timesync: x:124:142: systemd Time Synchronization ,,,:/run/ systemd: /bin/false network: x:125:143: systemd Network Management, ,,:/run/ systemd/ netif:/ bin/false resolve: x:126:144: systemd Resolver, ,,:/run/ systemd/ resolve: /bin/false bus-proxy: x:127:145: systemd Bus Proxy,, ,:/run/ systemd: /bin/false x:129:65534: Kernel Oops Tracking Daemon, ,,:/:/bin/ false dispatcher: x:130:29: Speech Dispatcher, ,,:/var/ run/speech- dispatcher: /bin/false 120:137: Simple Desktop Display Manager: /var/lib/ sddm:/bin/ false
daemon:
bin:x:2:
sys:x:3:
sync:x:
games:x:
man:x:6:
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:
news:x:
uucp:x:
proxy:x:
www-data:
backup:
list:x:
irc:x:39:
gnats:x:41:41:Gnats Bug-Reporting System (admin)
nobody:
syslog:
messagebus:
polkituser:
hplip:x:106:7:HPLIP system user,,,
avahi-autoipd:
avahi:x:
saned:x:
callegar:
stunnel4:
sshd:x:
pulse:x:
clamav:
postfix:
usbmux:
rtkit:x:
oprofile:
colord:
dhcpd:x:
timidity:
dnsmasq:
whoopsie:
dcmtk:x:
uuidd:x:
gpsd:x:123:20:GPSD system user,,,
systemd-
systemd-
systemd-
systemd-
kernoops:
speech-
sddm:x:
Here is /etc/group
root:x:0: callegar, syslog 9: x:20:callegar x:25:callegar 29:pulse, timidity x:46:callegar x:102:callegar x:109:callegar x:113: 116:callegar x:118:callegar priv:x: 122: x:124:callegar x:133:colord, callegar, saned x:138: journal: x:140: journal- remote: x:141: timesync: x:142: network: x:143: resolve: x:144: bus-proxy: x:145:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:
tty:x:5:
disk:x:6:
lp:x:7:callegar
mail:x:8:
news:x:
uucp:x:10:
man:x:12:
proxy:x:13:
kmem:x:15:
dialout:
fax:x:21:callegar
voice:x:22:
cdrom:x:24:callegar
floppy:
tape:x:26:
sudo:x:27:callegar
audio:x:
dip:x:30:
www-data:x:33:
backup:x:34:
operator:x:37:
list:x:38:
irc:x:39:
src:x:40:
gnats:x:41:
shadow:x:42:
utmp:x:43:
video:x:44:
sasl:x:45:
plugdev:
staff:x:50:callegar
games:x:60:
users:x:100:
nogroup:x:65534:
syslog:
messagebus:x:104:
polkituser:x:105:
fuse:x:107:callegar
ssl-cert:x:108:
lpadmin:
crontab:x:110:
mlocate:x:111:
ssh:x:112:
avahi-autoipd:
avahi:x:114:
netdev:x:115:
admin:x:
saned:x:117:
callegar:x:1000:
sambashare:
winbindd_
stunnel4:x:123:
vboxusers:
pulse:x:119:
pulse-access:x:120:
clamav:x:125:
postfix:x:103:
postdrop:x:121:
rtkit:x:126:
oprofile:x:127:
utempter:x:129:
bluetooth:x:131:
powerdev:x:132:
colord:x:106:
scanner:
_cvsadmin:x:134:
pcscd:x:130:
dhcpd:x:135:
timidity:x:136:
nopasswdlogin:
whoopsie:x:128:
dcmtk:x:139:
uuidd:x:101:
systemd-
systemd-
systemd-
systemd-
systemd-
systemd-
input:x:146:
sddm:x:137: