From the course: Red Hat Enterprise Linux 8 Essential Training
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Use firewalld zones
From the course: Red Hat Enterprise Linux 8 Essential Training
Use firewalld zones
- [Instructor] I've mentioned zones a few times. If you want to learn more about them, check out the man page named firewalld.zones. A zone defines the level of trust for network connections. A connection can only be part of one zone. A zone however can be used for many different network connections, for example, you can have a zone for your internal network which allows DHCP connections and another for your external network that does not allow any new incoming traffic. If an incoming packet mentions the source address for the zone, then the zone's rules are applied. Included zones are drop where incoming packets are dropped with no response, block where incoming packets are blocked with an ICMP-host-prohibited response, external for use on external network connections with masquerading enabled, you do not trust the other computers on the network, DMZ for computers in the DMZ that are publicly accessible with limited access to internal computers, public, work, home and internal for…
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Contents
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Network services introduction44s
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Consistent network device naming4m 31s
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Gather network information5m 37s
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Configure IP and subnet mask3m 46s
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Configure interface bonding using nmcli4m 14s
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Configure interface teaming using nmcli6m 5s
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Configure IPv6 and perform basic troubleshooting1m 30s
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Use firewalld for packet filtering3m 16s
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Use firewalld zones3m 42s
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Use firewalld for NAT3m 32s
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Use firewalld rich rules3m
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Route IP traffic and create static routes2m 6s
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Challenge: Network services1m 13s
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Solution: Network services6m 45s
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