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NetVault 12.2 - Administration Guide

Introduction Getting started Configuring clients Managing catalog search Configuring storage devices Backing up data Managing policies Restoring data Managing NetVault Backup dashboard Managing jobs Monitoring logs Managing storage devices
Monitoring device activity Managing disk-based storage devices in list view Managing disk-based storage devices in tree view Managing the Snapshot Array Manager Managing tape libraries in list view Managing tape libraries in tree view Managing tape drives in list view Managing tape drives in tree view Adding shared devices
Managing storage media Managing user and group accounts Monitoring events and configuring notifications Reporting in NetVault Backup Working with client clusters Configuring default settings for NetVault Backup
About configuring default settings Configuring encryption settings Configuring plug-in options Configuring default settings for post-scripts Configuring default settings for Verify Plug-in Configuring Deployment Manager Settings Configuring Job Manager settings Configuring Logging Daemon settings Configuring Media Manager settings Configuring Network Manager settings Configuring Process Manager settings Configuring RAS device settings Configuring Schedule Manager settings Configuring Web Service settings Configuring Auditor Daemon settings Configuring firewall settings Configuring general settings Configuring security settings Synchronizing NetVault Time Configuring default settings for global notification methods Configuring the reporting utility Configuring NetVault Backup WebUI default settings Configuring NetVault Backup to use a specific VSS provider Configuring default settings using Txtconfig
Diagnostic tracing Managing diagnostic data Using the deviceconfig utility NetVault Backup processes Environment variables Network ports used by NetVault Backup Troubleshooting

Firewall filtering rules

When creating firewall rules on the server and client machines, make sure that you open the following ports to send and receive traffic from NetVault Backup.

 
Table 18. Firewall filtering rules
From
To
TCP/UDP
Source port
Destination port

Server

Client

TCP

Connect ports for inter-machine connection setup specified on the NetVault Backup Server

20031

Client

Server

TCP

Connect ports for inter-machine connection setup specified on the NetVault Backup Clients

20031

Server

Client

TCP

Connect ports for message channels specified on NetVault Backup Server

Listen Ports for Message Channels specified on the NetVault Backup Clients

Client

Server

TCP

Listen ports for message channels specified on the NetVault Backup Clients

Connect Ports for Message Channels specified on the NetVault Backup Server

Server

Client

UDP

20031

20031

Client

Server

UDP

20031

20031

Server

Client

TCP

Listen ports for devices specified on the NetVault Backup Server and Clients

Connect ports for devices specified on the NetVault Backup Clients

Client

Server

TCP

Connect ports for devices specified on NetVault Backup Clients

Listen ports for devices specified on NetVault Backup Server and Clients

Firewall configuration example

This example illustrates the network port requirements for a NetVault Backup system with the following configuration:

•
Number of drives: 6
•
Number of clients with one plug-in: 10
•
Number of clients with two plug-ins: 2
 
Table 19. Example: Port requirement calculation
NetVault Backup machine
Port type
Requirement
Total ports
Example port range

Server (with locally attached storage device)

Connect ports for inter‑machine connection setup

Minimum two ports per client

24

50300-50323

Connect ports for NetVault Backup message channels

Minimum three ports per client

40

50200-50239

Listen ports for devices

Minimum two ports per drive

12

50100-50111

Client

Connect ports for inter‑machine connection setup

Minimum two ports per client

(These ports can be the same as the ports specified on the server side.)

24

50300-50323

Listen ports for NetVault Backup message channels

Minimum three ports per client

40

50500-50539

Connect ports for devices

Minimum two ports per drive

12

50400-50411

The following table illustrates the firewall filtering rules for this system.

 
Table 20. Example: Firewall filtering rules
From
To
TCP/UDP
Source port
Destination port

Server

Client

TCP

50300-50323

20031

Client

Server

TCP

50300-50323

20031

Server

Client

TCP

50200-50237

50500-50537

Client

Server

TCP

50500-50537

50200-50237

Server

Client

UDP

20031

20031

Client

Server

UDP

20031

20031

Server

Client

TCP

50100-50111

50400-50411

Client

Server

TCP

50400-50411

50100-50111

Locating a client

The clients that reside in a different subnet are not included in the list of available clients. You can use the Find Machine option to locate and add such clients.

To locate and add a client that is not discovered automatically:
1
Start the client addition wizard, and then click Find Machine.
2
On the Find Client page, type the Fully Qualified Domain Name (FQDN) or IP address of the client, and click Find.
3
After the machine is located, complete Step 3 through Step 6 in the section Adding a client to the NetVault Backup Server.
 
* 
NOTE: NetVault Backup reports an error if it fails to locate the specified client on the network. An error can occur for reasons such as the following:
•
The NetVault Backup software is not installed on the machine.
•
The NetVault Backup Service is not running on the machine.
•
The DNS lookup table or the machine’s host table cannot be contacted.

Checking communication through a firewall

When adding a client that resides outside the firewall, you can perform a firewall test to check if the server and client can communicate through the firewall. You can also perform this test to check connectivity for existing clients.

To check if the server and client can communicate through a firewall:
1
To check connectivity for new clients, start the client addition wizard, and then click Firewall Test.
— or —
To check connectivity for existing clients, open the Manage Clients page. Select the client, and then click Firewall Test.
2
In the Check Connection dialog box, provide the following details.
 
Table 21. Check connection
Option
Description

NetVault Client Name

For new clients, type the NetVault Backup name of the machine.

For existing clients, the name is displayed as a read-only property.

NetVault Client Address

For new clients, type the IP address of the machine.

For existing clients, the IP address is displayed as a read-only property.

UDP Port

The default UDP port for NetVault Backup. It is set to 20031. If you have configured NetVault Backup to use a different port, change this value.

TCP Port

The default UDP port for NetVault Backup. It is set to 20031. If you have configured NetVault Backup to use a different port, change this value.

Timeout

The timeout interval is set to 15 seconds by default.

3
Click Test. This command checks if TCP, UDP, and messaging connectivity is available between the server and client, and displays the result in the dialog box.
 
* 
IMPORTANT: The firewall test option checks the connectivity to the Stats Manager process on the specified server or client machine. If this process is not running on the client, the test fails. However, the client may still be accessible for backup. In any case, it is an abnormal situation and should be corrected.
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