netcat-openbsd - TCP/IP swiss army knife

Property Value
Distribution Debian 10 (Buster)
Repository Debian Main i386
Package filename netcat-openbsd_1.195-2_i386.deb
Package name netcat-openbsd
Package version 1.195
Package release 2
Package architecture i386
Package type deb
Category implemented-in::c interface::commandline net network::client protocol::ip protocol::ipv6 protocol::tcp protocol::udp role::program scope::utility suite::bsd use::transmission works-with::network-traffic
Homepage -
License -
Maintainer Aron Xu <>
Download size 41.10 KB
Installed size 97.00 KB
A simple Unix utility which reads and writes data across network
connections using TCP or UDP protocol.  It is designed to be a reliable
"back-end" tool that can be used directly or easily driven by other
programs and scripts. At the same time it is a feature-rich network
debugging and exploration tool, since it can create almost any kind of
connection you would need and has several interesting built-in
This package contains the OpenBSD rewrite of netcat, including support
for IPv6, proxies, and Unix sockets.


Package Version Architecture Repository
netcat-openbsd_1.195-2_amd64.deb 1.195 amd64 Debian Main
netcat-openbsd - - -


Name Value
libbsd0 >= 0.2.0
libc6 >= 2.28


Name Value
netcat -


Name Value
netcat << 1.10-35


Type URL
Binary Package netcat-openbsd_1.195-2_i386.deb
Source Package netcat-openbsd

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install netcat-openbsd deb package:
    # sudo apt-get install netcat-openbsd




2019-02-12 - Guilhem Moulin <>
netcat-openbsd (1.195-2) unstable; urgency=medium
* Report the listening port correctly in verbose mode. Regression since
1.195-1.  Thanks to Peter Pentchev for the report and patch.
Closes: #920611.
* debian/control: Bump Standards-Version to 4.3.0 (no changes necessary).
2018-10-22 - Guilhem Moulin <>
netcat-openbsd (1.195-1) unstable; urgency=medium
* New upstream release (from OpenBSD 6.4)
* debian/control: Bump Standards-Version to 4.2.1 (no changes necessary).
* debian/patches:
+ Move broadcast support out of misc-failures-and-features.patch into
an individual patch.
+ Fix arbitrary port list support (Closes: #886910, regression since
1.178-1) and move it into an individual patch.  Furthermore, add range
support as well as shuffling in said list, and document these features.
(Closes: #886909).
2018-04-30 - Guilhem Moulin <>
netcat-openbsd (1.190-2) unstable; urgency=low
* d/patches/misc-failures-and-features.patch: Refactor option/argument
verification logic and re-enable usage of '-s' (local source address) and
'-p' (local source port) in client mode (when '-l' is unset).  Regression
introduced in version 1.187-1 of that file.  Closes: #897020, LP: #1767283.
* debian/control: Bump Standards-Version to 4.1.4 (no changes necessary).
2018-04-05 - Guilhem Moulin <>
netcat-openbsd (1.190-1) unstable; urgency=low
* New upstream release (from OpenBSD 6.3)
* debian/control:
+ Bump Standards-Version to 4.1.3 (no changes necessary).
+ Migrate Vcs-Browser and Vcs-Git from Alioth to Salsa.
2017-12-03 - Guilhem Moulin <>
netcat-openbsd (1.187-1) unstable; urgency=low
* New upstream release (from OpenBSD 6.2)
* debian/control: Bump Standards-Version to 4.1.1 (no changes necessary).
* debian/patches/send-crlf.patch: clarify in the manpage that the "-C" flag
(translate LF to CR+LF) only affects input data, and that LF characters
that are already preceded with CR are not translated.  Closes: #861062.
* Allow usage of -s with -l for consistency with netcat-traditional.  `nc -l
-p 12345 -s ::1` now behave as `nc -l -p 12345 ::1` and `nc -l ::1 12345`.
Closes: #879853.
2017-07-31 - Guilhem Moulin <>
netcat-openbsd (1.178-3) unstable; urgency=low
* Fix FTBFS on hurd-i386.
* Fix verbose mode with UDP (-uv).  Thanks to Akos Pasztory for the report
and patch.  Closes: #870240.
2017-06-27 - Guilhem Moulin <>
netcat-openbsd (1.178-2) unstable; urgency=medium
* debian/control: Bump Standards-Version to 4.0.0 (no changes necessary).
* debian/rules: Avoid parsing dpkg-parsechangelog(1) output.
* Fix FTBFS on kFreeBSD.
2017-06-17 - Guilhem Moulin <>
netcat-openbsd (1.178-1) unstable; urgency=medium
* New upstream release (compiled without TLS support).
* debian/copyright: Fix license for atomicio.[ch] and socks.c (2-clause vs
3-clause BSD). Closes: #860459.
* debian/README.source: new file showing how to import new upstream
* set TCP MD5SIG correctly for client connections.  Thanks to Thomas Habets
for the patch.
2017-03-03 - Guilhem Moulin <>
netcat-openbsd (1.130-3) unstable; urgency=medium
* Change defaults from "-q0" to "-q-1" to match upstream defaults since the
introduction of flag "-N" in version 1.110.  Passing a non-negative value
to "-q" now implies "-N"; in particular, "-q0" is now a mere alias for
"-N". (Closes: #854292)
2017-01-26 - Aron Xu <>
netcat-openbsd (1.130-2) unstable; urgency=medium
* Fix handling of delayed exit option (Closes: #849192, LP: #1656785)
Thanks to Stefan Bader!

See Also

Package Description
netcat-traditional_1.10-41.1_i386.deb TCP/IP swiss army knife
netcat_1.10-41.1_all.deb TCP/IP swiss army knife -- transitional package
netcdf-bin_4.6.2-1_i386.deb Programs for reading and writing NetCDF files
netcdf-doc_4.6.2-1_all.deb Documentation for NetCDF
netcf_0.2.8-1+b2_i386.deb programs for the netcf library
netconfd-module-ietf-interfaces_2.11-1_i386.deb SIL module for netconfd implementing ietf-interfaces.yang
netconfd-module-ietf-system_2.11-1_i386.deb SIL module for netconfd implementing ietf-system.yang
netconfd_2.11-1_i386.deb NETCONF (RFC-6241) agent
netconsole_0.2-1_all.deb Dynamically configure Linux netconsole
netdata-core-no-sse_1.12.0-1+deb10u1_i386.deb real-time performance monitoring (core, no-sse build)
netdata-core_1.12.0-1+deb10u1_i386.deb real-time performance monitoring (core)
netdata-plugins-bash_1.12.0-1+deb10u1_all.deb real-time performance monitoring (bash plugins)
netdata-plugins-nodejs_1.12.0-1+deb10u1_all.deb real-time performance monitoring (nodejs plugins)
netdata-plugins-python_1.12.0-1+deb10u1_all.deb real-time performance monitoring (python plugins)
netdata-web_1.12.0-1+deb10u1_all.deb real-time performance monitoring (web)