pg_auth_mon
pg_auth_mon
pg_auth_mon : monitor connection attempts per user
Overview
| ID | Extension | Package | Version | Category | License | Language |
|---|---|---|---|---|---|---|
| 7150 | pg_auth_mon | pg_auth_mon | 3.0 | SEC | MIT | C |
| Attribute | Has Binary | Has Library | Need Load | Has DDL | Relocatable | Trusted |
|---|---|---|---|---|---|---|
--sLd-r | No | Yes | Yes | Yes | yes | no |
| Relationships | |
|---|---|
| See Also | passwordcheck_cracklib pgaudit pgauditlogtofile login_hook auth_delay credcheck logerrors set_user |
Packages
| Type | Repo | Version | PG Major Compatibility | Package Pattern | Dependencies |
|---|---|---|---|---|---|
| EXT | MIXED | 3.0 | 18 17 16 15 14 | pg_auth_mon | - |
| RPM | PGDG | 3.0 | 18 17 16 15 14 | pg_auth_mon_$v | - |
| DEB | PIGSTY | 3.0 | 18 17 16 15 14 | postgresql-$v-pg-auth-mon | - |
| Linux / PG | PG18 | PG17 | PG16 | PG15 | PG14 |
|---|---|---|---|---|---|
el8.x86_64 | PGDG 3.0 | PGDG 3.0 | PGDG 2.0 | PGDG 2.0 | PGDG 2.0 |
el8.aarch64 | PGDG 3.0 | PGDG 3.0 | PGDG 2.0 | PGDG 2.0 | PGDG 2.0 |
el9.x86_64 | PGDG 3.0 | PGDG 3.0 | PGDG 2.0 | PGDG 2.0 | PGDG 2.0 |
el9.aarch64 | PGDG 3.0 | PGDG 3.0 | PGDG 2.0 | PGDG 2.0 | PGDG 2.0 |
el10.x86_64 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 |
el10.aarch64 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 | PGDG 3.0 |
d12.x86_64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
d12.aarch64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
d13.x86_64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
d13.aarch64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
u22.x86_64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
u22.aarch64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
u24.x86_64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
u24.aarch64 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 | PIGSTY 3.0 |
Source
pig build pkg pg_auth_mon; # build debInstall
Make sure PGDG and PIGSTY repo available:
pig repo add pgsql -u # add both repo and update cacheInstall this extension with pig:
pig install pg_auth_mon; # install via package name, for the active PG version
pig install pg_auth_mon -v 18; # install for PG 18
pig install pg_auth_mon -v 17; # install for PG 17
pig install pg_auth_mon -v 16; # install for PG 16
pig install pg_auth_mon -v 15; # install for PG 15
pig install pg_auth_mon -v 14; # install for PG 14Config this extension to shared_preload_libraries:
shared_preload_libraries = 'pg_auth_mon';Create this extension with:
CREATE EXTENSION pg_auth_mon;Usage
pg_auth_mon stores authentication attempt statistics per user, tracking successful and failed logins with timestamps.
CREATE EXTENSION pg_auth_mon;Configuration
Add to postgresql.conf:
shared_preload_libraries = 'pg_auth_mon'Optional GUC:
| Parameter | Default | Description |
|---|---|---|
pg_auth_mon.log_period | 0 | Dump stats to Postgres log every N minutes (0=off) |
Querying Authentication Stats
SELECT * FROM pg_auth_mon;The pg_auth_mon view provides per-user information:
| Column | Description |
|---|---|
uid | User OID (0 for invalid/non-existing usernames) |
successful_auth_count | Total number of successful logins |
last_successful_auth | Timestamp of last successful login |
failed_auth_count | Total number of failed authentications |
last_failed_auth | Timestamp of last failed login |
hba_conflicts_count | Count of HBA file conflicts |
All login attempts with invalid usernames are aggregated into a single row with OID 0.
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