Fast init for Linux systems

Finit is a simple alternative to SysV init and systemd, reverse engineered from the EeePC fastinit ten years ago by Claudio Matsuoka — “gaps filled with frog DNA …” Finit supports runlevels, process monitoring, and starting services on demand using the built-in inetd, or by triggering a condition. E.g., “don’t start this service until basic networking is available”, or “wait until syslogd has started”. For more details, see the online documentation. [Read More]

Minix Editline

This is a line editing library for UNIX. It can be linked into almost any program to provide command line editing and history. It is call compatible with the FSF readline library, but is a fraction of the size (and offers fewer features). The small size (<30k), lack of dependencies (no ncurses needed!) and the free license should make this library interesting to many embedded developers seeking a replacement for the GNU readline library. [Read More]

Small and Simple DDNS Client

Inadyn is a small and simple Dynamic DNS, DDNS, client with HTTPS support. It is commonly available in many GNU/Linux distributions, used in off-the-shelf routers and Internet gateways to automate the task of keeping your DNS record up to date with any IP address changes from your ISP. It can also be used in installations with redundant (backup) connections to the Internet. Supported Providers The following is a curated list of some of the natively supported DDNS providers. [Read More]

The original PIM-SM daemon

pimd is a lightweight standalone PIM-SM/SSM v2 multicast routing daemon. It is the original USC (netweb/ implementation of the protocol, RFC 2362. Today pimd strives for full RFC compliance, including RFC 4601, RFC 5059, and RFC 5796, with the v2.3.0 release supporting both PIM-SSM and IGMPv3. In 2003 the OpenBSD project managed to convince Stanford in to change the license of mrouted. This in turn also freed pimd, since it is built with DNA strands from mrouted. [Read More]

Mini SNMP daemon

This is an SNMP server for small and embedded systems, currently Linux and FreeBSD are supported. It is easily portable to other UNIX systems since it’s written in C. The daemon is very small (~40 kiB) and does not have nowhere near the feature set of Net-SNMP, therefore it has a very low impact on system resources. Features: Supports SNMP version 1 and 2c Supports SNMP get, getnext and getbulk Supports both IPv4 and IPv6 Supports communication over UDP and TCP sockets Supports the most important performance data (uptime, CPU load, memory usage) Supports the most important network data (bytes/packets in/out, error counts) Supports the most important disk data (disk space/inodes available/used/free) Tested with net-snmp, cacti, and MRTG [Read More]

Static Multicast Routing Daemon

SMCRoute is a daemon and command line tool to manipulate the multicast routing table in the UNIX kernel. Both FreeBSD and Linux kernels are supported, but it may work on other systems as well. SMCRoute can be used as an alternative to dynamic multicast routing daemons like mrouted or pimd when (only) static multicast routes should be maintained and/or no proper IGMP signalling exists. Features Configuration file support, /etc/smcroute. [Read More]

System & Process Supervisor for Linux

watchdogd(8) is an advanced system and process supervisor daemon. It can monitor critical system resources, supervise the heartbeat of processes, record deadline transgressions, and reset the system on software lockups. When a system comes back up after a reset, watchdogd determines the reset cause and records it in a logfile for later analysis by an operator or network management system (NMS). This information can be used to put the system in an operational safe state, or non-operational safe state. [Read More]

No nonsense FTP/TFTP server

Tired of confusing configuration files and security features you don’t need? Try uftpd(8)! Supports both FTP and TFTP Has no confusing configuration file Listens to port ftp/tcp and tftp/udp found in /etc/services, or custom port(s) Serves files from the ftp user’s $HOME, as specified in /etc/passwd, or custom path Can run from inetd(8) or as a standalone daemon Can be built and installed as a .deb file, with debconf support Can run as root, with chroot and privsep, or as a regular user Supports TFTP blocksize negotiation, RFC 2348 Basically, it just works! [Read More]

Micro Tetris™

Micro Tetris — one of the smallest Tetris implementations in the world! Utilizing only ANSI escape sequences to draw the board, no external library dependencys other than a standard C-library, like uClibc or musl libc. Hence, it is very suitable for small embedded devices in need of an easter egg ;-) The game is based on a 1989 International Obfuscated C Code Contest (IOCCC) entry made by John Tromp. [Read More]