@@ -668,7 +668,7 @@ net.set_ntp_servers(ntpservers = ["server1", "server2", ...])

 ~~~~

 **Parameters**

-- ``ntpservers`` - Comma-separated list of NTP servers to remove from the list.

+- ``ntpservers`` - Comma-separated list of NTP servers to set in the list.

 **Returns**

@@ -190,6 +190,8 @@ One notable difference between the two versions of Photon OS pertains to OpenJDK

 	openjre 	x86_64    1.8.0.92-1.ph1    95.09 M

 	openjdk 	x86_64    1.8.0.92-1.ph1    37.63 M

+**NOTE:** openjdk and openjre are available as openjdk8 and openjre8 in Photon OS 2.0

+

 A later section covers tdnf. 

 ### The Root Account and the `sudo` and `su` Commands

@@ -13,7 +13,7 @@ Photon OS 2.0 provides the Photon Management Daemon command line interface (pmd-

 The pmd-cli utility is included with your Photon OS 2.0 distribution. To make sure that you have the latest version, you can run:

 ~~~~

-tndf install pmd-cli

+tdnf install pmd-cli

 ~~~~

 # Syntax

 ~~~~

@@ -105,6 +105,11 @@ pmd-cli firewall rules --chain <chain_name> --delete <rule_specification>

 ~~~~

 **Note:**  To confirm that the firewall rule was removed, run iptables -S. Running pmd-cli firewall rules lists only persistent rules.

+Make firewall rule changes peristent (add --persist flag)

+~~~~

+pmd-cli firewall rules --chain <chain_name> --add <rule_specification> --persist

+~~~~

+

 ## firewall version

 Get the version number of the fwmgmt component on the server.