On Wed, 28-Aug-2024 at 13:28:32 IST, Amey via plug-mail wrote:
> Hello,
>
> I want to block ICMP traffic but at same time also want to allow
> http,https & ssh traffic in Alpine Linux 3.12 [non docker/k8s
> env/plain vm]
>
> I tried to create 2 json files and activated the rules.
> ICMP is blocked but then http,https is also blocked.
> If I activate the allow rule first and then activate the deny rule,
> then ICMP is allowed which is strange.
>
> Any Alpine awall experts here who can help?
> My last resort is to touch iptables directly but trying to check if
> awall can help in anyway.
Can you share the config json files along with the errors and commands for
verification?
Sample:
{
"description": "Allow only HTTP and HTTPS traffic",
"filter": [
{
"in": "inet",
"out": "inet",
"action": "accept",
"proto": "tcp",
"dport": "80,443"
},
{
"in": "inet",
"out": "inet",
"action": "accept",
"proto": "udp",
"dport": "443"
}
],
"default": {
"in": "inet",
"out": "inet",
"action": "drop"
}
}
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