Jail jail is a simple, but often useful network security tool which displays ICMP packets and attempted TCP connections.
Download

Jail Ranking & Summary

Jail Tags

network security network security ICMP packets attempted TCP connections jail

Jail Description

jail is a simple, but often useful network security tool which displays ICMP packets and attempted TCP connections. jail (Just Another IP Logger) is a simple, but often useful network security tool which displays ICMP packets and attempted TCP connections from remote hosts.The application features better configuration and logging options than the iplogger package it was written to replace.icmplog and tcplog can either ignore any packet, or log it at any of thesyslog levels (as defined in < syslog.h >). The log level is configurabledepending on the ICMP type (icmplog) or the port on which a connection isrequested (tcplog). The default facility (LOG_DAEMON) for logging messagescan also be changed in the configurations files.The level at which a given type of packet is logged is specified in theconfiguration files (/etc/icmplog.conf and /etc/tcplog.conf by default,which can be overriden with the --file option). You can also specifya default level, which matches packets that have an unknown or unconfiguredtype. See the example configurations included and the icmplog(8) andtcplog(8) manual pages for more information.Log entries contain the source and type (icmplog) or destination port(tcplog) of the received packet. If a packet is of an unknown type, itsnumeric value is logged instead of its name. The source is loggedeither as a hostname or as an IP address (see the -n option). Typicalentries look like:Jun 16 17:47:30 lustre icmplog: startedJun 16 17:47:31 lustre tcplog: startedJun 16 18:54:14 lustre icmplog: time exceeded from sunsite.unc.eduJun 16 18:56:14 lustre tcplog: port 1039 request from ftp.cs.umn.eduJun 16 19:47:24 lustre icmplog: destination unreachable from 209.39.121.4The INSTALL file contains detailed installation instructions. Read theicmplog(8), icmplog.conf(5), tcplog(8) and tcplog.conf(5) manual pages, andthe example configuration files (icmplog.conf and tcplog.conf) formore information on setting up and using jail.jail was originally based on the iplogger package, but offers greaterconfigurability and better options. It bears very little resemblance tothe original program now.jail is distributed under the Artistic License (a copy of which is includedin the distribution) and comes with no warranty, express or implied. If itbreaks...well, keep the pieces.

Jail Related Software