Free proxy server tutorial software for linux

Anon Proxy Server is a fast http, https, socks caching proxy server. Easy web based configuration, optional p2p anonymous mode.
Main features:
- Easy Configuration - Web based, no editing text configuration files.
- Memory - No big databases are kept in memory, no matter how large the cache is, memory usage will only increase when more users access it at the same time.
- Speed - To see how much cpu the proxy uses, run top or task manager. Then open multiple windows and hit reload continously, on my computer I usually run out of bandwidth before it goes near 3-5% cpu usage.
- Shared Cache - Can be used as a general cache for all users of a computer/network instead of one cache per profile.
- Automatic config - Auto generates the .pac file for automatic proxy settings, no more updating in the do not use proxy section of individual users browsers.
- Anonymous P2P proxy - Joining the anonymous proxy network will allow you to use other peoples proxys for browsing and allow them to use yours.
- SOCKS - Supports enough of SOCKS to run ftp, most Instant messengers, irc, limewire, etc.
- User authentication - Supports external user authentication.
Enhancements:
- The program now checks for errors in access configuration.
- Variable timeout values were added.
- Log rotation was fixed.
- Occasional crashes on a bad URL were fixed.
- The auto configuration .pac file was fixed, so it should work even if the proxys URL was not set properly.
- Anon proxy defaults to 3 keys now for more reliability.

Firewall and Proxy Server HOWTO project is designed to describe the basics of firewall systems.

And also to give you some detail on setting up both a filtering and proxy firewall on a Linux based system.

Firewalls have gained great popularity as the ultimate in Internet Security.

Today firewalls are a part of almost every networking device. Like most hot subject they are also often misunderstood.

This HOWTO will go over the basics of what a firewall is and how to set one up.

I am using kernel 2.2.14 and RedHat 6.1 to develop this howto so the examples here are based on this distribution.

If you find differences in your distribution, please email me and Ill update this howto.

Apache Directory Server is an embeddable LDAP server implemented in pure Java.
Our primary vision (others also outlined below) is to build an enterprise directory server platform (and its components) where other Internet services snap in to store their data within the directory so they may be managed using LDAP.
From the image above youll see the architecture is designed so services besides LDAP like DNS, DHCP, SLP and Kerberos will snap in. Other services like UDDI can also be implemented and snapped in. These services will use a common networking layer and each can be toggled on and off according to the needs of the environment.
apseda, mina, or sedang are various frameworks used for the common network layer. These services share the common network layer and back their data within the Apache Directory Servers backing stores without any network latency or going through the LDAP line protocol. NTP btw is the only exception and its there to remedy the need for time sync for replication and other time sensitive protocols like kerberos. Its implementation here is intended to prevent any dependency on external infrastructure.
Main features:
- Designed as an LDAP and X.500 experimentation platform. Plugable components and subsystems make ApacheDS extremely modular and ideal for experiments with various aspects of the LDAP protocol.
- The servers frontend is completely separable from its backend and vice-versa making it very flexible for implementing virtual directories, proxy servers and gateways to X.500.
- Several backends can be implemented and plugged into the servers partition nexus. The server supports a BTree based partition out of the box but any backing store can be used to implement a partition so long as it conforms to interfaces.
- The server exposes aspects of administration via a special system backend. LDAP can be used to manage these concerns through the system naming context at ou=system.
- Java based triggers and stored procedures are being implemented.
- Both the backend subsystem and the frontend are separable and independently embeddable.
- The server contains a server side JNDI LDAP provider as the facade for the entire backend subsystem. JNDI operations are directly translated by this provider into operations against the nexus and the target partitions storing server entries.
- The server will use JNDI as the data access API for stored procedures. This will make stored procedures functional within and outside of the server without requiring recompilation.
- The servers networking code, MINA, Multipurpose Infrastructure for Network Applications was designed for pluggable protocol providers, of all sorts and not just LDAP. MINA gives ApacheDS the ability to handle large amounts of concurrency.
- The server uses the Snickers tools and APIs for ASN.1 BER encoding and decoding. These tools are designed for a very small encoding and decoding footprint as well as for use in non-blocking servers. The chunking nature of the BER codec makes the server very efficient while handling encoding and decoding making it more resistant to DoS attacks. This layer is also pluggable with a new experimental Twix provider which is much more efficient. Of course there is the unsupported Snacc4J provider which is no longer maintained.

httptype is a program that returns the http host software of a website. It is written in Perl.
httptype reads a list of http hosts and optionally the port number for each of these. It queries each host, displaying the type of HTTP server running on that host. It reads the http_proxy and no_proxy environment variables to determine whether to use a proxy or not.
httptype reads a list of http servers and, optionally, the port number for each of these. It then queries each of the hosts and displays the HTTP server software of the host.
Input may be read from a host file if specified using the --hosts switch:
httptype --hosts [hostfile]
If hostfile is omitted or `-, httptype reads from standard input. See Format of host file for more info.
A single host may be queried by passing its name on the command line:
httptype host [port]
If port is omitted, 80 is used.
If no host file is specified through the --hosts file and no host is specified on the command line, httptype will read the list from standard input. See Format of host file for more info.
httptype will read the http_proxy environment variable and try to determine if a proxy server is being used. This setting may be overridden using the --proxy switch:
httptype --proxy proxyhost[:proxyport]
If proxyport is omitted, 80 is used.
If the proxy server is `none, no proxy is used. This is typically used to prevent httptype from using the proxy server specified by http_proxy. The --noproxy switch can be used to achieve the same.
Additionally, you may use the no_proxy environment variable to specify a comma delimited list of hosts for which httptype should not use the proxy. If httptype comes across any of these hosts, it will make a direct connection to them.
Enhancements:
- made 1.3.8 stable and renamed to 1.2.3

Zero Touch Linux Server is the easiest way to setup your back office infrastructure. If you need mail server, file server or domain controller - ZTL is perfect for you. ZTL is now a FREE product that brings together the stability of Linux and the security of Trustix or 100% binary compatibility of CentOS with a simple web-based interface.
ZTL allows you to perform administrative tasks without any special knowledge. If you need to setup a server for your office, and do not have prior experience in doing it - ZTL is for you.
Main features:
- remote administration of servers
- three levels of access
- simple and comfortable web-based interface
- one click server upgrade
- based on powerful and secure operating system: Trustix Secure Linux
- based on free and 100% binary compatible operating system: CentOS Enterprise-class Linux Distribution
- ability to install and configure Web, Mail, DNS, Domain Controler, File Server, Printer Server as well as Database, DHCP, Proxy servers, Firewall servers
Three levels of access:
Admin Level:
- manage server configuration
- install/uninstall and automatically configure appliances
- create and manage websites/domains
- use PHP plugins: SquirrelMail, phpMyAdmin
Domain Level:
- create and manage websites/mailboxes/users
- add/manage shared folders
- manage MySQL/PostgreSQL databases
- add/manage users
- manage DNS records, Apache webserver virtual host settings
- use PHP plugins: SquirrelMail, phpMyAdmin
- remove/get system information
End User (Mail / FTP user) Level:
- webmail interface
- manage your mail settings
- use PHP plugins: SquirrelMail, phpMyAdmin
- change password
- upload download files via web

NTLM Authorization Proxy Server is a proxy software that allows you to authenticate via an MS Proxy Server using the proprietary NTLM protocol.
Since version 0.9.5 APS has an ability to behave as a standalone proxy server and authenticate http clients at web servers using NTLM method.
It can change arbitrary values in your clients request header so that those requests will look like they were created by MS IE. It is written in Python v1.5.2 language.
Main features:
- supports NTLM authentication via parent proxy server (Error 407 Proxy Authentication Required);
- supports NTLM authentication at web servers (Error 401 Access Denied/Unauthorized);
- supports translation of NTLM scheme to standard "Basic" authentication scheme;
- supports the HTTPS CONNECT method for transparent tunnelling through parent proxy server;
- has ability to change arbitrary values in clients request headers;
- supports unlimited number of client connections;
- supports connections from external hosts;
- supports HTTP 1.1 persistent connections;
- stores users credentials in config file or requests password from a console during the start time;
- supports intelligent failure detection and failover between multiple upstream proxies;
Enhancements:
- This release fixes a minor bug with Python 1.5.2 compatibility.

SS5 is a socks server that implements the SOCKS v4 and v5 protocol. As a proxy server, SS5 authenticates, profiles and processes network requests for clients.
Socks Server 5 establishes connections to application hosts for client applications. When the client attempts to access the network, the client connects to the SS5 daemon instead of the application host.
Following authentication, clients request that SS5 perform network activities for the client.
The activities might include:
CONNECT
BIND
UDP ASSOCIATE
The SS5 protocol is independent of application protocols, and can assist with different networking services, including telnet, ftp, finger, whois, gopher, and WWW access.
Enhancements:
- Fix code

ProxyView is a simple proxy server which relays TCP/IP[v4] connections from an IP:port defined on the commandline to another address:port. It dumps to the console all the data which arrives on the client and server sockets. It is a proxy for programmers designed to makes debugging TCP/IP software easier.

ProxyView will dump any data going between client and server.

Type these to install:
1) run make to compile program
2) run ./ProxyView -?...