Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision | ||
linux_wiki:use_firewalld_and_associated_mechanisms_such_as_rich_rules_zones_and_custom_rules_to_implement_packet_filtering_and_configure_network_address_translation_nat [2018/03/30 00:34] billdozor [Port Forwarding] |
linux_wiki:use_firewalld_and_associated_mechanisms_such_as_rich_rules_zones_and_custom_rules_to_implement_packet_filtering_and_configure_network_address_translation_nat [2018/05/29 22:18] billdozor |
||
---|---|---|---|
Line 88: | Line 88: | ||
# Bring interface up | # Bring interface up | ||
nmcli con up enp0s9</ | nmcli con up enp0s9</ | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ====== Help ====== | ||
+ | |||
+ | Finding help in this section. | ||
+ | * Firewalld Rich Rules< | ||
+ | * Firewall Cmd Man page (forward ports)< | ||
---- | ---- | ||
Line 180: | Line 188: | ||
\\ | \\ | ||
**Note:** As of RHEL 7.4, you **do not** need to execute the removal command/ | **Note:** As of RHEL 7.4, you **do not** need to execute the removal command/ | ||
- | * Removal example< | + | * Removal example< |
* Network script update example< | * Network script update example< | ||
Line 259: | Line 267: | ||
* log level=notice -> Change log level of http access | * log level=notice -> Change log level of http access | ||
* prefix -> Add this text to the front of the log | * prefix -> Add this text to the front of the log | ||
- | * limit value -> Limit the amount of connections | + | * limit value -> Limit the amount of logged connection attempts |
* accept -> Accept the connection | * accept -> Accept the connection | ||
Line 299: | Line 307: | ||
They come in from external on one port, and get forwarded to an internal system on a different port. | They come in from external on one port, and get forwarded to an internal system on a different port. | ||
+ | \\ | ||
Forward a connection from external 172.16.0.254 (ipa/ | Forward a connection from external 172.16.0.254 (ipa/ | ||
<code bash> | <code bash> | ||
Line 304: | Line 313: | ||
firewall-cmd --reload | firewall-cmd --reload | ||
</ | </ | ||
+ | |||
+ | \\ | ||
+ | Test the connection from server2< | ||
+ | |||
+ | The authenticity of host ' | ||
+ | ECDSA key fingerprint is SHA256: | ||
+ | ECDSA key fingerprint is MD5: | ||
+ | Are you sure you want to continue connecting (yes/no)? yes | ||
+ | Warning: Permanently added ' | ||
+ | root@172.16.0.254' | ||
+ | [root@server1 ~]# </ | ||
+ | * server2 connects to port 2222 on the ipa/router VM. | ||
+ | * The firewall port forward rule forwards the connection to port 22 on server1 | ||
---- | ---- | ||