iptables
Sign in to saveiptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. The filters are organized in a set of tables, which contain chains of rules for how to treat network traffic packets. Different kernel modules and programs are currently used for different protocols; iptables applies to IPv4, ip6tables to IPv6, arptables to ARP, and '''' to Ethernet frames.
Key facts
- Software.name
- iptables
- Software.screenshot
- Iptablesfb.png
- Software.screenshot alt
- Screenshot of "iptables -vnL" in framebuffer
- Software.caption
- Screenshot of "iptables -vnL" in framebuffer
- Software.author
- Rusty Russell
- Software.developer
- Netfilter Core Team
- Software.released
- 2001
- Software.programming language
- C
- Software.genre
- Packet filtering
- Software.license
- GPL
- Software.operating_system
- Linux
- Software.platform
- Netfilter
via Wikipedia infobox
Article
8 sectionsContents
- Overview
- Userspace utilities
- Front-ends
- Other notable tools
- See also
- References
- Literature
- External links
iptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. The filters are organized in a set of tables, which contain chains of rules for how to treat network traffic packets. Different kernel modules and programs are currently used for different protocols; iptables applies to IPv4, ip6tables to IPv6, arptables to ARP, and '' to Ethernet frames.
iptables requires elevated privileges to operate and must be executed by user root, otherwise it fails to function. On most Linux systems, iptables is installed as and documented in its man pages, which can be opened using man iptables when installed. It may also be found in /sbin/iptables, but since iptables is more like a service rather than an "essential binary", the preferred location remains .