# NAME Linux::NFTables - Perl interface to [libnftables](https://netfilter.org/projects/nftables/) # SYNOPSIS my $nft = Linux::NFTables->new()->set_output_options('json'); my $json = $nft->run_cmd("list tables"); # DESCRIPTION This module provides a Perl interface to [nftables](https://netfilter.org/projects/nftables/). # CHARACTER\_ENCODING Strings into & out of this module are byte strings. # METHODS ## $obj = _CLASS_->new() Instantiates _CLASS_. ## $yn = _OBJ_->get\_dry\_run() Returns a boolean that indicates whether _OBJ_ is set to dry-run mode. ## $obj = _OBJ_->set\_dry\_run( \[$yn\] ) Sets or unsets dry-run mode in _OBJ_. If the parameter is not given, this defaults to **ON**. ## $output = _OBJ_->run\_cmd( $CMD ) Passes an arbitrary command string to nftables and returns its output. ## @opts = _OBJ_->get\_output\_options() Returns a list of names, e.g., `json` or `guid`. Must be called in list context. Possible values are libnftables’s various `NFT_CTX_OUTPUT_*` constants (minus that prefix). ## $obj = _OBJ_->set\_output\_options( @NAMES ) A setter complement to `get_output_options()`. ## @opts = _OBJ_->get\_debug\_options() Like `get_output_options()` but for debug options. Possible values are libnftables’s various `NFT_DEBUG_*` constants (minux that prefix). ## $obj = _OBJ_->set\_debug\_options( @NAMES ) A setter complement to `get_debug_options()`.