19 lines
536 B
Markdown
19 lines
536 B
Markdown
---
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title: "Clean conntrack states"
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date: 2018-03-02
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description: How to clean conntrack states
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tags:
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- linux
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---
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## A not so simple command
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Firewalling on linux is messy, here is an example of how to clean conntrack states that match a specific query on a linux firewall :
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```sh
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conntrack -L conntrack -p tcp –orig-dport 65372 | \
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while read _ _ _ _ src dst sport dport _; do
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conntrack -D conntrack –proto tcp –orig-src ${src#*=} –orig-dst ${dst#*=} \
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–sport ${sport#*=} –dport ${dport#*=}
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done
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```
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