Firewall command ufw
ufw --help
Example Output:
Usage: ufw COMMAND
Commands:
enable enables the firewall
disable disables the firewall
default ARG set default policy
logging LEVEL set logging to LEVEL
allow ARGS add allow rule
deny ARGS add deny rule
reject ARGS add reject rule
limit ARGS add limit rule
delete RULE|NUM delete RULE
insert NUM RULE insert RULE at NUM
prepend RULE prepend RULE
route RULE add route RULE
route delete RULE|NUM delete route RULE
route insert NUM RULE insert route RULE at NUM
reload reload firewall
reset reset firewall
status show firewall status
status numbered show firewall status as numbered list of RULES
status verbose show verbose firewall status
show ARG show firewall report
version display version information
Application profile commands:
app list list application profiles
app info PROFILE show information on PROFILE
app update PROFILE update PROFILE
app default ARG set default application policysudo ufw status
Shows the rules in a simple format, listing the allowed or denied ports, protocols, source/destination, displays the current status of the ufw firewall, including whether it is active or inactive and a list of enabled firewall rules.
Example Output:
Status: active
To Action From
-- ------ ----
22 ALLOW Anywhere
443 ALLOW Anywheresudo ufw status numbered
Similar to ufw status, but each rule is prefixed with a number, making it easier to reference specific rules when modifying or deleting them (e.g., with ufw delete <number>).
Example Output:
Status: active
To Action From
-- ------ ----
[ 1] 22 ALLOW IN Anywhere
[ 2] 443 ALLOW IN Anywhereufw status verbose
Provides a more detailed output, including the firewall's status, logging settings, default policies (e.g., default behavior for incoming/outgoing connections), and the rules.
Example Output:
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip
To Action From
-- ------ ----
22 ALLOW IN Anywhere
443 ALLOW IN Anywhere