NVME Storage vs SSD Storage
NVMe (Non-Volatile Memory Express) storage offers several advantages over traditional SSDs (Solid State Drives), including:
Speed: NVMe SSDs leverage the ...
ZIMBRA: Enable plain text authentication
This post explains how to enable plain text authentication in Zimbra mail server, it also explains the necessary changes ...
Zimbra: Configure Sender Address Verification
In Zimbra mail initially mail lands in the proxy SMTP port and then is sent to the actual SMTP ...
Enabling Brutforce Notifications on Zimbra Mail Server
Like any other mail server's Zimbra too is prone to SMTP brutforce attacks. Hackers around the world try to ...
Installing Zimbra 8.6 on CentOS 7
1. Setup hostname
2. Add entry in hosts file
3. Install dependencies
yum install nmap-ncat perl perl-core sysstat
4. Download Zimbra installation file ...
Zimbra: Assign a dedicated Outgoing SMTP IP for a domain
Zimbra Outgoing SMTP IP per Domain
1. Add the following line in “/opt/zimbra/postfix/conf/main.cf”
sender_dependent_default_transport_maps = regexp:/opt/zimbra/postfix/conf/sdd_transport_maps.regexp
2. Create the file “/opt/zimbra/postfix/conf/sdd_transport_maps.regexp” and ...
Disable IPV6 on CentOS 6.x servers
1. Edit /etc/sysctl.conf and add the following line
net.ipv6.conf.all.disable_ipv6 = 1
2. Edit /etc/sysconfig/network and add the following line
NETWORKING_IPV6=no
3. Edit /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Run Zimbra on Both HTTP and HTTPS
1. Disable ProxySSLUpstream
zmprov ms `zmhostname` zimbraReverseProxySSLToUpstreamEnabled FALSE
2. Reconfigure Nginx
/opt/zimbra/libexec/zmproxyconfig -e -w -o -a 8080:80:8443:443 -x both -H `zmhostname`
3. Configure ...