[Solved] Zimbra – Unable to start TLS: SSL connect attempt failed error

Error while restarting zimbra/zmcontrol service   Starting ldap…Done. Unable to start TLS: SSL connect attempt failed error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed when connecting to ldap master. Solution su – zimbra zmlocalconfig -e ldap_starttls_required=true zmlocalconfig -e ldap_starttls_supported=1 zmcontrol restart    

How to Install Let’s Encrypt on CentOS 6/7 with Nginx webserver

[[email protected] ~]# yum -y install git python-tools python-pip Loaded plugins: fastestmirror Setting up Install Process Loading mirror speeds from cached hostfile * base: centos.mirror.net.in * epel: repos.del.extreme-ix.org * extras: centos.excellmedia.net * remi: mirror.xeonbd.com * remi-php56: mirror.xeonbd.com * remi-safe: mirror.xeonbd.com * rpmforge: kartolo.sby.datautama.net.id * updates: centos.excellmedia.net Resolving Dependencies –> Running transaction check —> Package git.x86_64 0:1.7.1-4.el6_7.1 will be updated –> Processing Dependency: git = 1.7.1-4.el6_7.1 for package: perl-Git-1.7.1-4.el6_7.1.noarch —> Package git.x86_64…