Apache failed at step NAMESPACE

Question

Error occurs after the package updates

apache2.service: Failed at step NAMESPACE spawning /usr/sbin/apachectl: Permission denied

Answer 1

1. Connect to the server via SSH.

2. For the service unit set PrivateTmp to false.

   For Debian 8: Edit /lib/systemd/system/apache.service  and add

   [Service] 
   PrivateTmp=false
   

3. Start apache service