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Is it possible to remove all rules in nftables?
According to nftables wiki it should be possible to remove all rules from the specified chain. However the following command returns error: What is the proper command to remove all rules from mychain without iterating over rule handles? There are still some errors lurking in the nftables wiki. The actual syntax is quite logical:
Why does NFT flush table IP Filter not flush?
Note: nft flush table ip filter will not flush Sets defined within that table, and will cause an error if the table to be flushed does not exist and you’re using Linux <4.9.0, which you can overcome by flushing the ruleset. More valuable information:
Are there any errors in the nftables wiki?
There are still some errors lurking in the nftables wiki. The actual syntax is quite logical: to empty a table (with ip as family by default if not specified). Eg for my table to delete a table (which also empties it first). Eg for mytable
How to configure a table in nftables Linux?
Each table belongs to exactly one family. So your ruleset requires at least one table for each family you want to filter. Following are some basic operations and commands for configuring tables: Troubleshooting: Since Linux kernel 3.18, you can delete a table and its contents with this command.
What is the maximum length of a table in nftables?
Within the configuration of nftables, a table is at the top of the ruleset. It consists of chains, which are containers for rules. Overview: Tables –> Chains –> Rules. The maximum length of a table name is 27 characters. At this moment you can create a table (add), delete it (delete), display it (list) or empty it (flush).
What is the name of the namespace in nftables?
At this moment you can create a table (add), delete it (delete), display it (list) or empty it (flush). All objects within nftables have a so called namespace, which includes the address family. This address family specifies what kind of hooks will be applied for further analysis of the information stream.