title: PostgreSQL only clear user password
body: <p>I am having a big problem, quite difficult to find/search.
  I have a server in Ubuntu, where inside that server I have installed:</p>
  
  <ul>
  <li>GITLAB (have all proyect)</li>
  <li>POSTGRESSQL (Independent gitlab database is used for a personal project)</li>
  <li>TOMCAT with APP WEB (Springboot, this use postgres)</li>
  </ul>
  
  <p>This server is still for testing, it is used for specific specific things (I mean, its use and access is limited and controlled)</p>
  
  <p>I am having various problems:</p>
  
  <ol>
  <li>This server is still for testing, it is used for specific specific things (I mean, its use and access is limited and controlled)</li>
  <li>Very frequently, almost every day, the user postgres from the postgresql server "erases" the password. Without anyone doing it manually, "it happens exponentially". I notice why the application stops responding, and then I access postgresql and note that the postgres user has no password.</li>
  </ol>
  
  <p>I looked for many places, and I can't find anything. I really don't know where else to look. If someone passed it to you or has information about it, I would be grateful if you could provide it to me.</p>
  
  <p>------More information added----------</p>
  
  <p>I was looking at the postgres logs, before I have no authentication and I see this.</p>
  
  <p><a href="https://i.stack.imgur.com/JpdKX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JpdKX.png" alt="Logpostgres"></a></p>
  
  <p>There are times when no one could have been using the springboot server,
  --2020-01-17 00:30:21.286
  And also the two log that show before that moment. Could it be something that is deleting my password?</p>
  
  <p>Thank you.</p>