tcpd

Wietse Venema's TCP wrapper utilities

Command lineInternet

Not tested on a device yet. What that means

Commands in the package

tcpd
safe_finger
tcpdchk
tcpdmatch
try-from

About tcpd

From Debian's package description

Wietse Venema's network logger, also known as TCPD or LOG_TCP.
These programs log the client host name of incoming telnet, ftp, rsh, rlogin, finger etc. requests.
Security options are:
access control per host, domain and/or service;
detection of host name spoofing or host address spoofing;
booby traps to implement an early-warning system.

From Debian's description of the tcpd package, under that package's license.

Dependencies

Depends on

libc6
libwrap0

Related apps

postfixHigh-performance mail transport agentCommand line
fingeruser information lookup programCommand line
netcat-traditionalTCP/IP swiss army knifeCommand line
netcat (OpenBSD)TCP/IP swiss army knifeCommand line
toranonymizing overlay network for TCPCommand line
PacketSenderNetwork utility for sending and receiving TCP, UDP, SSL packets

All Linux internet apps

Sources and licenses

Name: the Debian package name.
Summary: Debian's short description of the tcpd package, under that package's license.
Description: Debian's description of the tcpd package, under that package's license.
Versions and sizes: Debian's archive for ARM64, as on packages.debian.org.
Popularity: Debian Popularity Contest counts.