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17b69f04ff
* replace heartbeat with health-check
* instead of steady stream of newlines every 5s, now awaits input
and responds with `vmstat` output
* more reliably use host/config/vm-exec.json to get libvirt domain name
for snapshot-revert, server address, serial ports, vagrant setting, etc
* use iptables/nftables to disable networking
* added guest/bin/disable-network-[iptables,nftables]
* added guest/bin/enable-network-[iptables,nftables]
* replace ugly ___OUTPUT___ texts in sh, bash, ksh, zsh languages
* documentation updates and tweaks
9 lines
502 B
Bash
Executable File
9 lines
502 B
Bash
Executable File
#!/bin/sh
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# disables all incoming, outgoing and forwarded traffic except incoming/established SSH
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nft add table ip filter
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nft add chain ip filter INPUT '{ type filter hook input priority 0; policy drop; }'
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nft add chain ip filter OUTPUT '{ type filter hook output priority 0; policy drop; }'
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nft 'add rule ip filter INPUT ct state related,established counter accept'
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nft 'add rule ip filter INPUT tcp dport 22 counter accept'
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nft 'add rule ip filter OUTPUT ct state related,established counter accept'
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