01. SSH  port forwarding 

  % ssh -L 2023:remotehost:23 remotehost

  別コンソールで
  % telnet lcalhost 2023




02. tcpdump with tcpdump-filter.pl 

  # /usr/sbin/tcpdump -l -s 1000 -x -i eth0 dst port telnet|tcpdump-filter.pl


  ---- CUT HERE ----- tcpdump-filter.pl -------
    #!/usr/local/bin/perl
    while(){
      if(m/^[ \t]/){
          $store .= $_
      } else {
          s/^[^ ]* //;
          s/:[^:]*$//;
          print "$_\n";
          $_ = $store;
          s/\s//g;
          s/^.{120}//;
          s/[0-9A-Fa-f][0-9A-Fa-f]/pack("C",hex $&)/eg;
          s/[\x00-\x08\x0a-\x1f\x7f-\xff]/ /g;
          print "$_\n";
          $store = "";
      }
    }
  ------------------------------------------------




03. nmap

  % nmap -v targethost



04. Mod Netscape Communicator

  % find / -name netscape.ad -print

  /usr/lib/netscape/communicator/ja ,if your os is TurbolinuxWS6.0

  % emacs -nw netscape.ad  # *versionLocale: xxxxxxxxxxxxxxxxxxx



05. USE WanderLust


  M-x wl        Start WanderLust

  /             open sld

  RET           Scroll Under
  Space         Scroll Under
  BS            Scroll Uper
  M-RET         Top

  M-t           Online/Offline togleSW

  ＞            To Last Mail
  ＜            To Top Mail

  H             Full Header screen
  @             From:xx --> .addresses

  w             Mod Send
  A             Reply
  C-u A         Reply ML

  W             ReplyPOST NetNews





  C-c C-w       Add Signature

  C-c C-c       Send draft And draft clear
  C-c C-s       Send draft And draft keep

  C-c C-z       Return (draft is save -> E type is conti)

  C-c C-k       Kill Buffer

  C-c C-x C-i   Add Tempu File





06. USE Netscape Config File

  TurbolinuxWS6.0 : /usr/lib/netscape/communicator/Netscape.ad
                                                  /XKeysymDB
                                                  /registry
                    /usr/lib/netscape/communicator/ja/Netscape.ad




07. USE route for change gateway

      # route add default gw (router IP addr) dev eth0
      # route add default gw (router IP addr) netmask 255.255.255.0 dev eth0





08. find setuid 

    find / -user root -perm -4000 -exec ls -la '{}' \;



09. ? な改行コードをすべて CR に変換

         $val =~ s/\r\n/\r/g;
         $val =~ s/\n/\r/g;



10. BIND 
         ##HOW TO KNOWN BIND VERSION
         > set type=txt
         > set class=chaos
         > version.bind

         ##ETC
         > set q=mx

         > set q=ptr


11. sendmail start

         /usr/sbin/sendmail -bd -q30m