Linux is a clone of the Unix kernel, written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX and Single UNIX Specification compliance. It has all the features you would expect in a modern fully-fledged Unix kernel, including true multitasking, virtual memory, shared libraries, demand loading, shared copy-on-write executables, proper memory management, and TCP/IP networking.
Kernel Mode Linux is a technology which enables the execution of user programs in a kernel mode. In Kernel Mode Linux, user programs can access kernel address space directly. Unlike kernel modules, user programs are executed as ordinary processes (except for their privilege level), so scheduling and paging are performed as usual. Although it seems dangerous, the safety of the kernel can be ensured through such methods as static type checking, software fault isolation, and so forth.
Keepalived for LVS aims to add a strong and robust keepalive facility to the Linux Virtual Server project. This project is written in C with multilayer TCP/IP stack checks. It implements a framework based on three family checks: Layer3, Layer4, and Layer5. This framework gives the daemon the ability of checking a LVS server pool states.When one of the servers in the LVS server pool is down, keepalived informs the Linux kernel via a setsockopt call to remove this server entry from the LVS topology. In addition, it implements a VRRPv2 stack to handle director failover.
Astaro Portscan Detection is a netfilter target which will attempt to detect TCP and UDP port scans and log them to syslog. This target is based upon Solar Designer's scanlogd. It suppports mutliple levels of logging, custom prefixes for entries, weighted total port scan detection, and port scan temporal spread detection.
T/TCP For Linux is an implementation and integration of T/TCP (Transaction TCP) into Linux kernels. T/TCP is an extension for standard TCP which uses a monotonically increasing variable, CC (Connection Counts), to bypass the 3-way handshake and reduce TIME_WAIT perild. T/TCP greatly decreases the overhead that standard TCP introduces when dealing with transaction-oriented connections. T/TCP for Linux also focuses on the promotion of wide adoption of T/TCP, since it has indisputable performance advantages over standard TCP.
Sirid is a Web-based tool for managing software projects. The main features of Sirid are assigning tasks between the personnel, reporting bugs, managing specifications, and recording feature requests. The program also sends notifications of new bugs and tasks to people who have been set responsible for them, and notifies the responsible people when the deadline of some bug or task is approaching. It features graphical presentations for tracking the progress of your project. Sirid keeps you informed of the status of each of your projects, and allows you to take action if difficulties arise.