The goal of the Linux WLAN project is to develop a complete, standards based, wireless LAN system using the GNU/Linux operating system. What differentiates this project from the Linux wireless extensions and other Linux wireless projects is that it is basing everything on the IEEE 802.11 standard.
Mars is a simple, extensible, services-oriented network status monitor written in Java. It monitors a network by simulating client connections to Internet services and reporting when those services are not responding as expected. It is quick and easy to install and configure, which distinguishes it from more complex network monitoring tools. Mars monitors HTTP, HTTPS, SMTP, IMAP, POP3, FTP, SSH, and JDBC, and notifies via SMTP and XMPP "out of the box". Support for new protocols, notifications, and reporting mechanisms is easy to add via Java or XML.
Ypldapd is a Network Information Service (NIS) server which uses LDAP as its information source. Using ypldapd, existing NIS clients can transparently use LDAP to resolve user, group and host information. Enterprises can thus realize the benefits of LDAP, such as its distribution and scalability, without ugprading clients. Used in conjunction with LDAP server technologies such as Netscape's Directory Server, ypldapd can provide single sign on to both NT and UNIX clients.
nss_ldap is an RFC 2307-compliant set of C library extensions which allows X.500 and LDAP directory servers to be used as a primary source of aliases, ethers, groups, hosts, networks, protocol, users, RPCs, services and shadow passwords (instead of or in addition to using flat files or NIS).
Mason is a tool that interactively builds a firewall using Linux' ipfwadm or ipchains firewalling. You leave mason running on the firewall machine while you are making all the kinds of connections that you want the firewall to support (and want it to block). Mason gives you a list of firewall rules that exactly allow and block those connections. It can either build a firewall from scratch for you or supplement an existing firewall.
Isinglass is a firewall setup script designed to protect dial-up users. It protects a user's system against security holes in programs user may not even know are running. Most users can run it "out of the box" without any configuration required. It will automatically detect network interfaces and IP addresses. isinglass-hzd is an unofficial bugfix/2.2 support release.
vpnd is a daemon which connects two networks on network level either via TCP/IP or a (virtual) leased line attached to a serial interface. All data transfered between the two networks are encrypted using the unpatented free Blowfish encryption algorithm with a key length of up to 576 bits (may be downgraded to a minimum of 0 bits to suit any legal restrictions).
UserIPacct introduces a new policy mechanism that provides per-user IP statistics (measuring the user's IP usage). This package adds per user IP accounting to the Linux kernel, and contains programs to control and use this accounting data. Patches are available for the 2.0.39, 2.2.19, and 2.4.5 kernels.