Install Guide

Table Of Contents

4–Security Considerations

Managing Security

Doc. No. TD-000966 Rev. 1

4. If any agent was previously running, restart it.

Figure 4-2 shows how the default Windows firewall settings prevent the QCC GUI

from connecting to remote hosts, and Figure 4-3 shows how modifying the

settings lets the QCC GUIconnect to remote hosts.

Figure 4-2. Default Windows Firewall Settings—QCC Blocked from Remote Hosts

Figure 4-3. Modified Firewall Settings—QCC Able to Connect to Remote Hosts

Linux Firewall Configuration

If the Linux firewall (iptable rules) is enabled with default settings, connections

between the QCC GUI and remote hosts are not allowed. To use Linux firewall but

allow connections between the QCC GUI and remote hosts, set up the rules for

your Linux distribution as described in the following sections.

Red Hat Enterprise Linux (RHEL) 7.x+ and SLES 15.x+

To configure the firewall:

1. Determine the FirewallD status (enabled or disabled):

# systemctl status firewalld

2. If FirewallD is enabled:

a. Identify the current active zone and related interface:

# firewall-cmd --get-active-zones

public interfaces: em1