Free https proxy software for linux

Bypass Proxy Client is the complete network privacy tool. It ensures absolute privacy wherever you maybe, preventing would-be snoopers from monitoring your surfing, email, or chatting activity. You can bypass blocking filters, firewalls, and proxies. Surf, chat, read news boards, and get all your email at work, on campus (or in regions/areas that may block controversial websites).
Main features:
- Surf the internet using your own virtual network across the web.
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- Anonymously surf news groups, chat rooms, and web sites!
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- Protect your Kazaa Identity; Guard against IP tracing -- the no. 1 method
- used by the RIAA to spy on users of file shares (Kazaa, BearShare, etc.)
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- Prevent corporate networks from eavesdropping and viewing your personal information!
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- Keep your email and other personal documents private.
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- Regain access to sites that were previously blocked or filtered. Chat with friends online without concerns about eavesdropping.

The MM3-WebAssistant - Proxy Offline Browser archives all web pages you have visited online. Offline too each page is available with its URL. There is no difference between browsing the internet and browsing the archive.
You can even use your bookmarks and favorites list offline without any changes. When online the proxy updates your cached web pages and adds new pages automatically. This feature distinguishes the utility from most other offline browsers.
Reduces the cost of web time, the work and pressure of knowing what to save, and the necessity for repeating browsing sessions looking for something that was missed. You can access the information needed whether or not the server or dial-up is available.
The reliability is increased with that. Mobile users have the flexibility of accessing information from the web without having to worry about expensive access points. With the MM3-WebAssistantWebAssistant - Proxy Offline Browser you get a more easy and effective use of the internet.
Main features:
- All web pages visited are archived.
- There is no difference between on- and offline mode for the user.
- Links to resources of cache archives are marked for quick navigation.
- Highlighting the changes between HTML pages in internet and archive.
- Quick search in the archives and marking the search words in the hitlist and in every hit.
- Hierarchical archive structure represents a mirror of every web site.
- Interactive navigation and display of the hierarchical archive structure.
- Topic-specific archiving of web pages.
- Exchange of the archives also between different operating systems possible.
- Filtration of unwanted contents.
- Supports the protocols HTTP, HTTPS and FTP.
- Caches the domain and IP address (DNS)
- Available on many operating systems by use of Java[TM] technology.
- Operating Systems: Windows 9x/ME/NT/2000/XP, Linux, Unix, Solaris, OS/2, Mac OS X.
- Supplied with a detailed manual, a simple and completely comprehensive installation and deinstallation.
- MM3-WebAssistantWebAssistant - Proxy Offline Browser - Private is available as freeware for private use.
- MM3-WebAssistantWebAssistant - Proxy Offline Browser - Professional is an extended, faster and qualitatively better edition (differences: between editions).

WebCleaner is a filtering HTTP proxy. It can be customized to your needs.
Main features:
- remove unwanted HTML (adverts, flash, etc.)
- popup blocker
- disable animated GIFs
- filter images by size, remove banner adverts
- compress documents on-the-fly (with gzip)
- reduce images to low-bandwidth JPEGs
- remove/add/modify arbitrary HTTP headers
- configurable over web interface
- usage of SquidGuard blacklists
- antivirus filter module
- detection and correction of known HTML security flaws
- Basic, Digest and (untested) NTLM proxy authentication support
- per-host access control
- HTTP/1.1 support (persistent connections, pipelining)
- HTTPS proxy CONNECT and optional SSL gateway support
Enhancements:
- Compatibility problems with Internet Explorer and the Compress
- filter have been fixed.
- The Blocker filter now allows absolute block URLs.
- The sets of blacklisted domains and advertisement servers have been updated.

u2nl provides a universal transparent HTTPS proxy tunnel.
u2nl (u-tunnel, universal tunnel) is a small application that listens on a TCP port and tunnels all connections transparently via an HTTPS proxy (using the CONNECT command) to the Internet.
Another host on the Internet is not needed. This only works if the HTTPS proxy allows these CONNECT connections.
It can be used to provide a Linux host with full connectivity when everything except the http proxy is blocked by a firewall.
Usage
I assume now, you have found out the ip address and port of the https proxy we use for tunneling. You have to make sure, that your Linux host forwards all connections to a port, u2nl is listening on. Do something like the following (replace OUTPUT by PREROUTING if the Linux computer is only a gateway):
# iptables -t nat -A OUTPUT -p tcp -d ! -j REDIRECT --to-port
Where is the ip address/hostname of the proxy host and is the port (you choose, something above 1024) u2nl will be listening on. Now start u2nl:
# u2nl
Where is the port of the https proxy (normally 8080 or 80) and is the (same as above) port u2nl will be listening on. The tunnel should work now.
Enhancements:
- The Makefile has been improved.

YACY is a distributed Web crawler and also a caching HTTP/HTTPS proxy. Pages that pass through the proxy are indexed and can be searched using a built-in HTTP server.
YACY peers connect each other and form a P2P-based index exchange network based on distributed hash tables. Explicit web crawls can be done locally or collaboratively, forming a global search and distributed indexing engine for the Web.
YACY also provides URL filtering with blacklist sharing among other proxy peers, individual Web and servlet page hosting, a file sharing zone, and a database engine.
Main features:
- Search your own or the global index
- Crawl your own pages or start distributed crawling
- Run your peer to support other YaCy crawlers
- Provide Information on your peer using the built-in http-server, file-sharing zone and wiki
- Built-in caching http proxy
- Indexing benefits from the proxy cache; private information is not stored or indexed
- Usage of the proxy is not a requisite for web indexing, but it enables you to access the new top-level-domains .yacy
- Filter unwanted content like ad- or spyware; share your web-blacklist with other peers
- Easy installation! No additional database required!
- No central server!
- GPLed, freeware
Enhancements:
- An auto-updater and support for multiple search networks have been added, and the option to index intranet sites in separated networks has been enabled.
- Some interface functions have also been enhanced.

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.

Antispyd is a HTTP/HTTPS proxy server designed to be fast, efficient, modular and secure. Its written in pure C and uses a simple and customizable configuration file. Its POSIX compliant and has been developed under Gentoo/Linux.
The server is designed with a modular software architecture, the following filters can be used and configured independently :
Url Filtering
Mime-type Filtering
Web-Identity Masking
Shellcode and Zero-day threat Filtering
Cookie Removal
Simple Signature based Filtering
Inappropriate content Blocking
Pop-up Deleting
So, Antispyd can be used to satisfy some current companys security needs like :
Web Usage Policy establishment
Instant Messaging control
Peer-to-Peer Filtering
Malware Protection
Enhancements:
- This release provides a major improvement of the signature based filtering engine (the BLOCK_SIGN filter) in terms of both performance and functionality.
- The signatures are now stored in a 3-Tree to enhance the matching of each HTTP message.
- This filtering can be performed on each HTTP messages content.
- A signature can use the hexadecimal array of a byte to specify a fields value