Server Name Indication
Server Name Indication (SNI) is a feature that extends the SSL and TLS protocols to indicate what hostname the client is attempting to connect to at the start of the handshaking process. By doing so it allows a server to present multiple certificates on the same IP address and port number and hence allows multiple secure (HTTPS) websites to be served off the same IP address without requiring all those sites to use the same certificate.
Unfortunately to make use of SNI practical it is necessary that the vast majority of users are using web browsers that support it. Users whose browsers do not support SNI will be presented with a default certificate and hence are likely to receive certificate warnings. As of 2011 there are still many users of browsers that do not support SNI.
Prepare for a PXE installation
The following steps must be performed to prepare for a PXE installation:
Configure the network (NFS, FTP, HTTP) server to export the installation tree.
Configure the files on the tftp server necessary for PXE booting.
Configure which hosts are allowed to boot from the PXE configuration.
Start the tftp service.
Configure DHCP.
Boot the client, and start the installation.
Installing or Updating PostgreSQL on Your cPanel & WHM Server
cPanel & WHM works with PostgreSQL 7.3.x or later.
Using the command line interface, log into your server as root.
If you have PostgreSQL 7.2.x installed, back up your databases using pg_dumpall or some other method. If you have databases you wish to keep, move your existing PostgreSQL data directory somewhere else by, for example, typing the following command.
mv /var/lib/pgsql /var/lib/pgsql.old
To begin the installation process:
On a CentOS or RedHat system, use the following script:
This script executes yum install postgresql (and related RPMs).
The NLnet Labs Name Server Daemon (NSD) is an authoritative RFC compliant DNS nameserver. It was ?rst conceived to allow for more genetic diversity for DNS server implementations used by the root-server system and it has been developed for operations in environments where speed, reliability, stability, and security are of high importance. NSD is currently used on root servers such as k.root-servers.net and is also in use by several top-level domain registries.
nsd - Package Open-source nameserver daemon.
Update script affected by the setting
/usr/local/cpanel/scripts/nsdup
NSD is an authoritative only, high performance, simple and open source name server. The latest current stable release is NSD 3.2.8.
Cpanel Update Server Software feature
The Update Server Software feature manages software dependencies (provided by the operating system) that cPanel requires.
Here’s where you can find and use this feature:
WHM (in browser) Main >> Software >> Update Server Software
And from the command Line
