48 lines
1.1 KiB
Bash
48 lines
1.1 KiB
Bash
# -*- shell-script -*-
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@def $DEV_VPN= wg0;
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table filter {
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chain INPUT {
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policy DROP;
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# connection tracking
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mod state state INVALID DROP;
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mod state state (ESTABLISHED RELATED) ACCEPT;
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# allow local connections
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interface lo ACCEPT;
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interface $DEV_VPN{
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# respond to ping
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proto icmp icmp-type echo-request ACCEPT;
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# disallow ssh
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saddr proto tcp dport ssh DROP;
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}
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}#FIN INPUT
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# outgoing connections are not limited
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chain OUTPUT {
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policy ACCEPT;
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interface $DEV_VPN{
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# allow ssh
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daddr proto tcp dport ssh ACCEPT;
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# respond to ping
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proto icmp icmp-type echo-request ACCEPT;
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}
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}#FIN OUTPUT
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chain FORWARD {
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policy ACCEPT;
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# connection tracking
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mod state state INVALID DROP;
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mod state state (ESTABLISHED RELATED) ACCEPT;
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# connections from the internal net to the internet or to other
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# internal nets are allowed
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interface $DEV_VPN ACCEPT;
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# the rest is dropped by the above policy
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}#FIN FO
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}
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