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There are three tables: nat, filter, and mangle. 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
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 It superseded ipfirewall (managed by ipfwadm command), but was replaced by iptables in the 2.4 series.
Asymmetric. Available for Microsoft Windows, Linux, and macOS. SAN File System (SFS) from DataPlow. Available for Windows, Linux, Solaris, and macOS. Symmetric and Asymmetric. EMC Celerra HighRoad from EMC. Available for Linux, AIX, HP-UX, IRIX, Solaris and Windows. Asymmetric. [citation needed] Files-11 on VMSclusters, released by DEC in 1983 ...
Shows all TCP connections with no DNS resolution (show IP addresses instead). netstat -al: Shows only listening sockets. netstat -aep: Also show PID and to which program each socket belongs, e adds extra info like the user. Run as root to see all PIDs. netstat -s: Shows network statistics. netstat -r: Shows kernel routing information.
nftables is a subsystem of the Linux kernel providing filtering and classification of network packets/datagrams/frames. It has been available since Linux kernel 3.13 released on 19 January 2014. [2] nftables replaces the legacy iptables component of Netfilter. Among the advantages of nftables over iptables is less code duplication and easier ...
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.
Debian GNU/Linux: ext2: 1993: FreeBSD v1-v5.0: UFS1: 1993 Windows NT 3.1: NTFS 1.0 1994: Windows NT 3.5: NTFS 1.1 1995: Windows 95: FAT16B with VFAT: 1996: Windows NT 4.0: NTFS 1.2 1998: Mac OS 8.1 / macOS: HFS Plus (HFS+) 1998: Windows 98: FAT32 with VFAT: 2000 SUSE Linux Enterprise 6.4 ReiserFS [1] [2] 2000: Windows Me: FAT32 with VFAT: 2000 ...
-q: Suppresses all output-v: Verbose; COMMAND: The command to run (add, delete, change, get, monitor, flush)-net: <dest> is a network address-host: <dest> is host name or address (default)-netmask: the mask of the route <dest>: IP address or host name of the destination <gateway>: IP address or host name of the next-hop router