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| author | Viacheslav Hletenko <v.gletenko@vyos.io> | 2022-05-10 15:14:19 +0000 |
|---|---|---|
| committer | Viacheslav Hletenko <v.gletenko@vyos.io> | 2022-05-12 17:27:38 +0000 |
| commit | 2e81f9e057f598a9a9e5c2d617e3d0818005d850 (patch) | |
| tree | 71081daf520515702ec608a66cd8831cd6cf88fb /interface-definitions | |
| parent | 432fd1b5e7b5a1e5b8503bf0dcd106369e323dc7 (diff) | |
| download | vyos-1x-2e81f9e057f598a9a9e5c2d617e3d0818005d850.tar.gz vyos-1x-2e81f9e057f598a9a9e5c2d617e3d0818005d850.zip | |
sshguard: T4408: Add service ssh dynamic-protection
Sshguard protects hosts from brute-force attacks
Can inspect logs and block "bad" addresses by threshold
Auto-generate rules for nftables
When service stopped all generated rules are deleted
nft "type filter hook input priority filter - 10"
set service ssh dynamic-protection
set service ssh dynamic-protection block-time 120
set service ssh dynamic-protection detect-time 1800
set service ssh dynamic-protection threshold 30
set service ssh dynamic-protection whitelist-address 192.0.2.1
Diffstat (limited to 'interface-definitions')
| -rw-r--r-- | interface-definitions/ssh.xml.in | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/interface-definitions/ssh.xml.in b/interface-definitions/ssh.xml.in index 8edbad110..7e2512f54 100644 --- a/interface-definitions/ssh.xml.in +++ b/interface-definitions/ssh.xml.in @@ -61,6 +61,78 @@ <valueless/> </properties> </leafNode> + <node name="dynamic-protection"> + <properties> + <help>Allow dynamic protection</help> + </properties> + <children> + <leafNode name="block-time"> + <properties> + <help>Block source IP in seconds. Subsequent blocks increase by a factor of 1.5</help> + <valueHelp> + <format>u32:1-65535</format> + <description>Time interval in seconds for blocking</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-65535"/> + </constraint> + </properties> + <defaultValue>120</defaultValue> + </leafNode> + <leafNode name="detect-time"> + <properties> + <help>Remember source IP in seconds before reset their score</help> + <valueHelp> + <format>u32:1-65535</format> + <description>Time interval in seconds</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-65535"/> + </constraint> + </properties> + <defaultValue>1800</defaultValue> + </leafNode> + <leafNode name="threshold"> + <properties> + <help>Block source IP when their cumulative attack score exceeds threshold</help> + <valueHelp> + <format>u32:1-65535</format> + <description>Threshold score</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-65535"/> + </constraint> + </properties> + <defaultValue>30</defaultValue> + </leafNode> + <leafNode name="whitelist-address"> + <properties> + <help>Source address or prefix</help> + <valueHelp> + <format>ipv4</format> + <description>Address to match against</description> + </valueHelp> + <valueHelp> + <format>ipv4net</format> + <description>IPv4 address and prefix length</description> + </valueHelp> + <valueHelp> + <format>ipv6</format> + <description>IPv6 address to match against</description> + </valueHelp> + <valueHelp> + <format>ipv6net</format> + <description>IPv6 address and prefix length</description> + </valueHelp> + <constraint> + <validator name="ip-address"/> + <validator name="ip-prefix"/> + </constraint> + <multi/> + </properties> + </leafNode> + </children> + </node> <leafNode name="key-exchange"> <properties> <help>Allowed key exchange (KEX) algorithms</help> |