socks5 eines i apps:

servidors: 

dante:
  * http://www.inet.no/dante/status.html
  * ta guay té coses que no té ss5 però diria que li falten algunes importatns que si q té ss5
  * prendre decisió segons necessitats específiques del projecte
  
ss5:

features:
connect
bind
udp association
identd
dns resolution
authentication
  * basic
    * pass file
    * generic external auth program
    * pam
    * secure user pass auth
  * kerberos
    * GSS API
      * Authentication, Integrity and Encryption message
cache
  * authentication
  * authorization
authorization
  * group on fs
  * directory query (LDAP)
can convert connect operation from sokcs v5 to vr
traffic dump
load balancing
bandwith profiling (limit BW per user o per IP and can limit connections per user)
traffic filtering
  * http/s
  * smtp
  * pop3
  * imap4
internet cache protocol (ICP): to fetch http objects from external http proxy (icache)
  * http://icp.ircache.net/
  * RFC2186 v2 protocol spec
  * RFC2187 v2 apps spec
  * products q ho soporten: squid, ms proxy, cisco cache engine, etc
  * alternatives al ICP: CARP, cache digests
servers stats via web console
central config, can propagate configuration to other remote instanaces using propagate key as security mechanisme
module structure
hashed ACL


clients wrappers/proxifier:

* tocks: wrapper de client amb linux, tsocks:
  * http://tsocks.sourceforge.net/index.php
  * va molt bé fa temps q no s'actualitza

* csock:
  * wrapper de la gent del ss5, csocks té TCP i UDP.
  * http://csocks.altervista.org/

* connect-proxy
[root@mini4 ~]# yum info connect-proxy
Available Packages
Name       : connect-proxy
Arch       : i586
Version    : 1.100
Release    : 3.fc11
Size       : 35 k
Repo       : fedora
Summary    : SSH Proxy command helper
URL        : http://www.taiyo.co.jp/~gotoh/ssh/Description: 
connect-proxy is the simple relaying command to make network connection via: 
SOCKS and https proxy. It is mainly intended to be used as proxy command
of OpenSSH. You can make SSH session beyond the firewall with this command.
           : 
           : Features of connect-proxy are:
           : 
           :     * Supports SOCKS (version 4/4a/5) and https CONNECT method.
           :     * Supports NO-AUTH and USERPASS authentication of SOCKS
           :     * Partially supports telnet proxy (experimental).
           :     * You can input password from tty, ssh-askpass or environment variable.
           :     * Simple and general program independent from OpenSSH.
           :     * You can also relay local socket stream instead of standard I/O.
http://linux.die.net/man/1/connect-proxy

1.local:
connect-proxy -S oriol@91.121.177.102:1080 -d -p 3333 91.121.167.154 2222
nc -vvv 127.0.0.1 3333

2. through proxy:
ss5 w/user-pass auth

3. destí
nc -vvvv -k -l -p 2222


* proxychains:
  * http://proxychains.sourceforge.net/
  * permet saltar de forma anidada entre proxies