Upgrade your key server
To upgrade your key server:
- Back up the contents of 
/etc/keyless. - Update your OS’ package listings, for example, 
apt-get updateoryum update. - Upgrade the gokeyless server:
 - Debian/Ubuntu: 
apt-get upgrade gokeyless - RHEL/CentOS: 
yum install gokeyless - Restart the keyless instance:
 - systemd: 
service gokeyless restart - upstart/sysvinit: 
/etc/init.d/gokeyless restart - Confirm that HTTPS connections are working as expected.