title: Zabbix dependcies unmet
body: <p>I want to upgrade a Zabbix 2.2.7 to a 3.4 but there is a problem when I want to install zabbix-server:</p>
  
  <pre><code>The following packages have unmet dependencies:
   zabbix-server-mysql : 
  Depends: libmariadbclient18 (&gt;= 5.5.36) but it is not installable
  
  Depends: libsnmp30 (&gt;= 5.7.3+dfsg-1.7~dfsg) but 5.7.2.1+dfsg-1 is to be installed
  
  Depends: libssl1.1 (&gt;= 1.1.0) but it is not installable
  E: Unable to correct problems, you have held broken packages.
  </code></pre>
  
  <p>libbssl1.1 and libmariadbclients are not avaialable, however I updated my repositories with apt-get update and apt-get upgrade.</p>
  
  <p>And I don't know for libsnmp how to remove it and then install the new one.</p>
  
  <p>Regards</p>