Oidentd
Encyclopedia
oidentd is an RFC 1413 compliant ident
daemon
which runs on Linux
, FreeBSD
, NetBSD
, Darwin
, OpenBSD
, and Solaris. It can handle IP masqueraded/NAT
connections and it has a flexible mechanism for specifying ident responses. Users can be granted permission to specify their own ident responses. Responses can be specified according to host and port pairs. One of the most notable capabilities is spoofed ident responses or ident spoofing.
The oidentd.conf configuration file can be used to specify the amount of control users have over the responses oidentd returns upon successful lookups for connections owned by them. While the $HOME/.oidentd.conf file allows a user to specify what ident response will be returned for specific connections.
Ident
The Ident Protocol, specified in RFC 1413, is an Internet protocol that helps identify the user of a particular TCP connection. One popular daemon program for providing the ident service is identd.-How ident works:...
daemon
Daemon (computing)
In Unix and other multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user...
which runs on Linux
Linux
Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...
, FreeBSD
FreeBSD
FreeBSD is a free Unix-like operating system descended from AT&T UNIX via BSD UNIX. Although for legal reasons FreeBSD cannot be called “UNIX”, as the direct descendant of BSD UNIX , FreeBSD’s internals and system APIs are UNIX-compliant...
, NetBSD
NetBSD
NetBSD is a freely available open source version of the Berkeley Software Distribution Unix operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. The NetBSD project is primarily focused on high quality design,...
, Darwin
Darwin (operating system)
Darwin is an open source POSIX-compliant computer operating system released by Apple Inc. in 2000. It is composed of code developed by Apple, as well as code derived from NeXTSTEP, BSD, and other free software projects....
, OpenBSD
OpenBSD
OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution , a Unix derivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995...
, and Solaris. It can handle IP masqueraded/NAT
Nat
Nat or NAT may refer to:* Nat., an abbreviation for Natural* Nat , a Burmese spirit worshipped in Myanmar in conjunction with Buddhism...
connections and it has a flexible mechanism for specifying ident responses. Users can be granted permission to specify their own ident responses. Responses can be specified according to host and port pairs. One of the most notable capabilities is spoofed ident responses or ident spoofing.
The oidentd.conf configuration file can be used to specify the amount of control users have over the responses oidentd returns upon successful lookups for connections owned by them. While the $HOME/.oidentd.conf file allows a user to specify what ident response will be returned for specific connections.