RE: UDP port 500 traffic from two clients

From: Fernando Cardoso (fernando.cardosoat_private)
Date: Tue Jan 29 2002 - 01:48:56 PST

  • Next message: Greg A. Woods: "RE: UDP port 500 traffic from two clients"

    [...]
    >
    > For example when doing remote administration of servers on some remote
    > network you should always use SSH, even if you also have a VPN to
    > connect your local workstation (and/or local network) to the remote
    > network.  You should not trust everyone and everything on the remote
    > network between its gateway and the remote server(s) you're
    > administering.  If you don't always use SSH any passwords you type to
    > them may be seen by a sniffer on the remote network.  The same risks
    > apply to using any remote application where you don't want sensitive
    > data to be seen or interfered with as it traverses the remote network.
    
    Just a small note on this: you can use IPSec for remote administration of
    servers with the same degree of confidence you'd use SSH. I do understand
    and agree with Greg's concerns about trusting everything on the remote
    network, but you're thinking of IPSec only in terms of tunelling, where you
    have a couple of gateways (peers) doing encryption and decryption on behalf
    of other hosts. If you use IPSec in transport mode, you'll have end-to-end
    encryption between two hosts, which is equivalent to what you'd achieve with
    SSH.
    
    Cheers
    
    Fernando
    
    --
    Fernando Cardoso - Security Consultant       WhatEverNet Computing, S.A.
    Phone : +351 21 7994200                      Praca de Alvalade, 6 - Piso 6
    Fax   : +351 21 7994242                      1700-036 Lisboa - Portugal
    email : fernando.cardosoat_private     http://www.whatevernet.com/
    
    
    
    _____________________________________________________________________
                          INTERNET MAIL FOOTER 
    A presente mensagem pode conter informação considerada confidencial.
    Se o receptor desta mensagem não for o destinatário indicado, fica
    expressamente proibido de copiar ou endereçar a mensagem a terceiros.
    Em tal situação, o receptor deverá destruir a presente mensagem e por
    gentileza informar o emissor de tal facto.
    ---------------------------------------------------------------------
    Privileged or confidential information may be contained in this
    message. If you are not the addressee indicated in this message, you
    may not copy or deliver this message to anyone. In such case, you
    should destroy this message and kindly notify the sender by reply
    email.
    ---------------------------------------------------------------------
    
    
    ----------------------------------------------------------------------------
    This list is provided by the SecurityFocus ARIS analyzer service.
    For more information on this free incident handling, management 
    and tracking system please see: http://aris.securityfocus.com
    



    This archive was generated by hypermail 2b30 : Tue Jan 29 2002 - 08:20:35 PST