@related : [[Modem]] [[Hardware]] , [[Linux]] , [[Windows]], [[EMail]] , [[Security]] [[P2P]] [[Download]] [[FileTransfer]] [[FileSystem]] [[Ethernet]] [[SSH]] [[Privacy]] [[Communication]] [[Gateway]] [[Port]]


A Network is a set of connected [[Computer]] (or item if talking [[Math]]),
[[Internet]] is the interconnextion of networks


==== [[Networks]] ====

list open ports :
http://check.sdv.fr

  * http , http://localhost:80/ # http apache  http://www.faqs.org/rfcs/rfc2616.html

  * mldonkey.org http://localhost:4080/ # mlnet

  nntp://localhost:433/ 

  * http://www.seifried.org/security/ports/0/433.html


==== [[Proxy]] ====

http://www.privoxy.org/

http://anon.inf.tu-dresden.de/fragen/index_en.html

  apt-cache search proxy chain
  anon-proxy - Proxy to surf the web anonymously
  proxychains - Proxy Chains - redirect connections through proxy servers

  http_proxy="http://127.0.0.1:4001"
  HTTP_PROXY=$http_proxy
  export http_proxy HTTP_PROXY


SOCKS5 (RFC 1928)

http://mirrors.ccs.neu.edu/cgi-bin/unixhelp/man-cgi?ssh-socks5-proxy-connect+1

http://freshmeat.net/projects/socks5/


==== BYPASS HTTP RESTRICTION ====

http://install.xav.com/?p=cgiproxy

http://www.jmarshall.com/tools/cgiproxy/releases/cgiproxy.2.0.1.tar.gz

SSH tunneling on proxy w/out ntlm
http://davenport.sourceforge.net/ntlm.html

http://linuxfr.org/tips/130.html


http://www.math.jussieu.fr/informatique/tunnel_ssh.html


$REMOTE Must be a proxy listening on 80 port

  ssh -p 443 -L80:localhost:80 $REMOTE



==== CONFIGURATION ====

  # apt-get install shaper shaperd

http://www.knowplace.org/shaper/


http://tcng.sourceforge.net/

http://sp9wun.republika.pl/linux/shaperd_cbq_en_old.html


==== NETWORK / LINK / SPEED [[BitRate]] ====

Here's a quick list of the maximum transfer rates for various connections in megabits (Mb) and megabytes (MB) per second:

  * serial port: 115kbits/s


=== Trafic Shaper===

  sudo apt-get install wondershaper
  zless /usr/share/doc/wondershaper/README.Debian.gz
  RTNETLINK answers: Invalid argument


=== ETH HUB===

http://support.dlink.com/Products/view.asp?productid=DE-809TC


=== BUGS & TROUBLES===

  root@ttyp4[[rzr]]# /etc/init.d/dovecot stop ; /etc/init.d/dovecot start
  Stopping mail server: dovecot .
  Starting mail server: dovecotFatal: listen(993) failed: Address already in use

  netstat -anp

http://www.iana.org/assignments/port-numbers



=== NETWORK===

  route del default

  /etc/ssh/sshd_config  # export display w/ ssh
  X11Forwarding yes

  ssh -L 1234:localhost:22 remotehost -s sftp
  to tunnel all request on port 1234 to secure port 22 and allow a SFTP.



  # Here's the fun part: we open up a port for forwarding, put ssh in
  # the background as soon as it's authenticated, and sleep to give
  # rlpr a chance to connect
  ssh -fL ${LOCAL_PORT}:${PRINTER}:515 $HOST sleep $SLEEP && /usr/bin/rlpr --send-data-first --printhost localhost --port $LOCAL_PORT
$*


===FILESYSTEM===

Network files could be reach transparently through [[FileSystem]] w/ Samba, NFS etc


===TIME :===

Compile kernel to non GMT clock (like Win etc)
  date --set "02/02/2003 22:23"
  hwclock  --systohc --localtime
  # sync your time agains a server?
  #for one-shot  :
  ntpdate  ntp.nerim.net
  #(or ntpd, rdate);
  #france:  ntp.nerim.net, univ-lyon1.fr

=== MISC ===

Exporting display
  * from X11 to X11 : rdp (export DISPLAY)
  * from MacosX to * (tightvnc + OSXvn )

Database :
http://www.mysql.com/doc/en/Repair.html


Share Internet link (setting a router up)
  iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE # @S
  echo "1" > /proc/sys/net/ipv4/ip_forward # @S


Xchat in French With accents
LC_CTYPE=french xchat

  root@debian# dpkg-reconfigure locales
  Generating locales...
  en_IN.UTF-8... done
  en_US.ISO-8859-1... done
  en_US.ISO-8859-15... done
  en_US.UTF-8... done
  fr_FR.ISO-8859-15@euro... done
  fr_FR.ISO-8859-1... done
  fr_FR.UTF-8@euro... done
  fr_FR.UTF-8... done


===== MISC =====

  /etc/dhcpd.conf
  send hostname '_hostname_'


===== LINKS =====

  * http://www.iana.org/assignments/port-numbers
  * http://www.peercast.org/# ARTS INTERNET MEDIA
  * https://www.stellar.org/papers/stellar-consensus-protocol.pdf

==== MORE ====

@TaG: NetWork RouteR DlinK NeT

http://mrdiv.tumblr.com/

{{http://24.media.tumblr.com/tumblr_m46uw7Z5x61qzw1qyo1_500.gif}}