Pam_unix(sudo:auth): auth could not identify password for [amp]

Technical Support
1

OS Name/Version: ubuntu 22.04

Product Name/Version: (Always use the full version number - not ‘Latest’) ampinstmgr 2.3.2.4 built 22/02/2022

Problem Description: I cannot connect to ampinstmgr web interface (not active); ampinstmgr service does not start properly.

sudo systemctl status ampinstmgr
● ampinstmgr.service - AMP Instance Manager
     Loaded: loaded (/etc/systemd/system/ampinstmgr.service; enabled; vendor preset: enabled)
     Active: active (exited) since Sun 2022-03-13 11:33:58 EET; 1min 44s ago
       Docs: https://github.com/CubeCoders/AMP/wiki/AMP-systemd-script-(Linux)
    Process: 206358 ExecStart=/opt/cubecoders/amp/ampinstmgr startboot true (code=exited, status=0/SUCCESS)
   Main PID: 206358 (code=exited, status=0/SUCCESS)
      Tasks: 68 (limit: 76810)
     Memory: 346.1M
        CPU: 14.943s
     CGroup: /system.slice/ampinstmgr.service
             ├─206395 /usr/bin/tmux -f /dev/null new-session -s AMP_ADS01 -d "cd '/home/amp/.ampdata/instances/ADS01'; /home/amp/.ampdata/instances/ADS01/AMP_Linux_x86_64 +Core.Webserver.Port 8080 +Core.Webserver.IPBinding 0.0.0.0 +FileManagerPlugin.SFTP.SFTPPortN>
             ├─206396 /home/amp/.ampdata/instances/ADS01/AMP_Linux_x86_64 +Core.Webserver.Port 8080 +Core.Webserver.IPBinding 0.0.0.0 +FileManagerPlugin.SFTP.SFTPPortNumber 2223 +ADSModule.Network.MetricsServerPort 12820
             ├─206452 /home/amp/.ampdata/instances/MinecraftBedrock/AMP_Linux_x86_64 +Core.Webserver.Port 38082 +Core.Webserver.IPBinding 127.0.0.1 +FileManagerPlugin.SFTP.SFTPPortNumber 2224 +MinecraftModule.Minecraft.PortNumber 19132
             ├─206580 /home/amp/.ampdata/instances/MinecraftJavaSpigotbestseed1181/AMP_Linux_x86_64 +Core.Webserver.Port 38084 +Core.Webserver.IPBinding 127.0.0.1 +FileManagerPlugin.SFTP.SFTPPortNumber 2228 +MinecraftModule.Minecraft.PortNumber 25565
             └─206666 /home/amp/.ampdata/instances/MinecraftBedrock/./Minecraft/bedrock_server

mar 13 11:33:57 frubuntu ampinstmgr[206358]: [Notice] AMP instance ADS01 is now running.
mar 13 11:33:58 frubuntu ampinstmgr[206358]: [Info] Waiting for AMP instance to start...
mar 13 11:33:58 frubuntu ampinstmgr[206358]: [Notice] AMP instance MinecraftBedrock is now running.
mar 13 11:33:58 frubuntu ampinstmgr[206358]: [Info] Waiting for AMP instance to start...
mar 13 11:33:58 frubuntu ampinstmgr[206358]: [Notice] AMP instance MinecraftJavaSpigotbestseed1181 is now running.
mar 13 11:33:58 frubuntu systemd[1]: Finished AMP Instance Manager.
mar 13 11:33:58 frubuntu sudo[206609]: pam_unix(sudo:auth): conversation failed
mar 13 11:33:58 frubuntu sudo[206609]: pam_unix(sudo:auth): auth could not identify password for [amp]
mar 13 11:33:58 frubuntu sudo[206615]: pam_unix(sudo:auth): conversation failed
mar 13 11:33:58 frubuntu sudo[206615]: pam_unix(sudo:auth): auth could not identify password for [amp]


sudo tail -f /var/log/auth.log |grep amp
Mar 13 11:33:46 localhost sudo: fratzicu : TTY=pts/17 ; PWD=/etc/apache2/conf-available ; USER=root ; COMMAND=/usr/bin/systemctl restart ampinstmgr
Mar 13 11:33:57 localhost sudo: pam_unix(sudo:auth): auth could not identify password for [amp]
Mar 13 11:33:58 localhost sudo: pam_unix(sudo:auth): auth could not identify password for [amp]
Mar 13 11:33:58 localhost sudo: pam_unix(sudo:auth): auth could not identify password for [amp]

Steps to reproduce:

  • upgrade ampinstmgr
  • start ampinstmgr
  • try to connect to webinterface

Actions taken to resolve so far:

edited /etc/pam.d/sudo adding

auth       sufficient   pam_permit.so

edited visudo file adding

amp ALL=(ALL) NOPASSWD: /opt/cubecoders/amp/ampinstmgr, /usr/bin/bash

After this insystemctl status ampinstmgr it seems the amp user commands are allowed but service stops without relevant error message.

kind regards

2

AMP won’t try and start if it’s in sudoers. The logs there indicate everything was fine.

3

well, it’s not fine. because it doesn’t start if it is not in sudoers.

4

Try running ‘ampinstmgr fixperms’ as root.

5

hi, I tried

mar 13 22:17:01 frubuntu ampinstmgr[1769724]: [Notice] AMP instance ADS01 is now running.
mar 13 22:17:01 frubuntu ampinstmgr[1769724]: [Info] Waiting for AMP instance to start...
mar 13 22:17:01 frubuntu ampinstmgr[1769724]: [Notice] AMP instance MinecraftBedrock is now running.
mar 13 22:17:01 frubuntu ampinstmgr[1769724]: [Info] Waiting for AMP instance to start...
mar 13 22:17:01 frubuntu ampinstmgr[1769724]: [Notice] AMP instance MinecraftJavaSpigotbestseed1181 is now running.
mar 13 22:17:01 frubuntu systemd[1]: Finished AMP Instance Manager.
mar 13 22:17:01 frubuntu sudo[1769981]: pam_unix(sudo:auth): conversation failed
mar 13 22:17:01 frubuntu sudo[1769981]: pam_unix(sudo:auth): auth could not identify password for [amp]
mar 13 22:17:01 frubuntu sudo[1769987]: pam_unix(sudo:auth): conversation failed
mar 13 22:17:01 frubuntu sudo[1769987]: pam_unix(sudo:auth): auth could not identify password for [amp]

Still no luck.

I’ll wait, maybe it will come some fix; otherwise maybe I should reinstall from scratch. This error appeared after upgrading to xubuntu 22.04 development and this upraded to php 8.1 so maybe this is the cause.

6

Were you able to fix? I am having a similar issue

7

Check the actual AMP log files, what do they say?