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Unless preceded by the option -t, an iptables command concerns the filter table by default. For example, the command iptables -L -v -n, which shows some chains and their rules, is equivalent to iptables -t filter -L -v -n. To show chains of table nat, use the command iptables -t nat -L -v -n
tc relates to the Linux kernel packet scheduler as iptables to netfilter. Both are user-space CLI programs that are used to configure their respective Linux kernel subsystem. tc (traffic control) is the user-space system administration utility program used to configure the Linux kernel packet scheduler.
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
Netfilter is a framework provided by the Linux kernel that allows various networking-related operations to be implemented in the form of customized handlers.Netfilter offers various functions and operations for packet filtering, network address translation, and port translation, which provide the functionality required for directing packets through a network and prohibiting packets from ...
Display server Software license Language Libraries Operating systems Type Remarks Protocol Other Linux BSDs Other COSMIC Shell: GPLv3: Rust: Smithay: Iced: Yes: No: No: Modern-style window compositing: Designed for Pop!_OS: Enlightenment: BSD license: C: libwayland-server (MIT License) EFL: Yes: Yes: POSIX: Modern-style window compositing ...
It uses a command-line interface consisting of a small number of simple commands, and uses iptables for configuration. UFW is available by default in all Ubuntu installations since 8.04 LTS. [ 1 ] UFW has been available by default in all Debian installations since 10.
Linux IP Firewalling Chains, normally called ipchains, is free software to control the packet filter or firewall capabilities in the 2.2 series of Linux kernels. It superseded ipfirewall (managed by ipfwadm command), but was replaced by iptables in the 2.4 series. Unlike iptables, ipchains is stateless.
TCP Wrappers (also known as tcp_wrappers) is a host-based networking ACL system, used to filter network access to Internet Protocol servers on operating systems such as Linux or BSD. It allows host or subnetwork IP addresses , names and/or ident query replies, to be used as tokens on which to filter for access control purposes.