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Fix issue with firewall ordering

Merged Fix issue with firewall ordering
bugfix/ussuri/firewall-ordering into arcus/ussuri-staging
Merged Will Szumski requested to merge bugfix/ussuri/firewall-ordering into arcus/ussuri-staging
  1. Dec 08, 2022
    • Will Szumski's avatar
      Fix issue with firewall ordering · 10a23935
      Will Szumski authored 
      The issue was that the firewall rules were being inserted below a rule
that dropped all traffic. Here is a snippet from iptables-save.

```
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A INPUT -j firewallgen_input
```

By always inserting this beginning of the chain, we ensure that the
rules in this chain always take precedence.
      10a23935