Network Security

Ronald Maggio r.v.maggio at worldnet.att.net
Wed Dec 19 23:59:07 EST 2001


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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV 
  style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> 
  <A title=hubbardr at adelphia.net href="mailto:hubbardr at adelphia.net">Richard 
  Hubbard</A> </DIV>
  <DIV style="FONT: 10pt arial"><B>To:</B> <A title=nflug at nflug.org 
  href="mailto:nflug at nflug.org">nflug at nflug.org</A> </DIV>
  <DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, December 19, 2001 10:09 
  PM</DIV>
  <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Network Security</DIV>
  <DIV><BR></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff size=2>I'll 
  pipe in to help out...</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial><FONT color=#0000ff 
  size=2>Another book (aside from Hacking Exposed)&nbsp; is "Securing and 
  Optimizing Linux Red Hat Edition - A Hands on Guide" available at <A 
  href="http://www.linuxdoc.org">http://www.linuxdoc.org</A>.&nbsp; It's free, 
  and it is a step by step to build a secure server.&nbsp; It is a little dated, 
  giving examples using rh 6.2.&nbsp; The one chapter that has been definitely 
  superceded is the chapter on ipchains, which has been replaced by 
  iptables.&nbsp; However, this still should get you pretty close to what you 
  need.&nbsp; </FONT></FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff size=2>If 
  you're not using RedHat, then the general security measures are still a good 
  guide, you'll just need to go to your distro do get the 
  details.</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff size=2>I'm 
  dual booting with redhat 7.2 on this machine, and have dual booted with 
  Mandrake.&nbsp; (I know someone will take umbrage, but) I think they are both 
  pretty good.&nbsp; </FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff size=2>The 
  ram and hard drive space should be plenty.</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2>Rich</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2>&lt;--------------------------------------------------------------snip--------------------------------------------------------------------------------&gt;</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial color=#0000ff 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial size=2>Thanks for your 
  input Rich it is appreciated. I'll look into what you've suggested and see how 
  to make my systems more secure.</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial size=2>I installed 
  Norton's Internet Security on my Windows Systems, but unfortunately as I was 
  installing it on more than&nbsp;one system&nbsp;I was learning more about it 
  and did not get back in time to reset the settings to make it more secure. So 
  what ended up was some ports where left open and someone attacked the port 
  over and over again untill they got entrance. I really am not sure&nbsp;which 
  port but my suspicion is SMTP cause every time I opened the email client the 
  HDD would go nutts and the mouse would jump all over the screen, also the 
  windows would jump from one to another. </FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial size=2>I would say that 
  that sounds like a virus that got past my anitvirus software some how. Most 
  likely in a stealthly manner. Where as the anitvirus software could not catch 
  it getting on the system. Thats the problem when you have to get on line I 
  guess. </FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial size=2>So 
  </FONT></SPAN><SPAN class=700320303-20122001><FONT face=Arial size=2>I 
  will&nbsp;be taking the&nbsp;</FONT></SPAN><SPAN 
  class=700320303-20122001><FONT face=Arial size=2>Network + exam in a few 
  weeks. So<SPAN class=700320303-20122001><FONT face=Arial size=2> wish me luck 
  fellas. </FONT></SPAN>
  <DIV></FONT></SPAN><SPAN class=700320303-20122001><FONT face=Arial size=2>I'm 
  also going for my Server + and MCSE. The only problem is that locally I don't 
  know of any school that teaches RHCE or LPI corsework.&nbsp;Does anyone have 
  info on this matter?</FONT></SPAN></DIV></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2>&lt;-----------------------------------------snip-------------------------------------------------------------------&gt;</FONT></SPAN></DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2></FONT></SPAN><SPAN class=700320303-20122001><FONT face=Arial 
  size=2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=700320303-20122001><FONT face=Arial 
  size=2><STRONG>O</STRONG></FONT></SPAN><FONT face=Tahoma size=2>iginal 
  Message-----<BR><B>From:</B> owner-nflug at nflug.org 
  [mailto:owner-nflug at nflug.org]<B>On Behalf Of </B>Ronald 
  Maggio<BR><B>Sent:</B> Wednesday, December 19, 2001 9:07 PM<BR><B>To:</B> 
  nflug at nflug.org<BR><B>Subject:</B> RE: Network Security<BR><BR></DIV></FONT>
  <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
    <DIV><FONT face=Arial size=2>HI John</FONT></DIV>
    <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
    <DIV><FONT face=Arial size=2>You where talking&nbsp;&nbsp;about this subject 
    in an email or two ago.&nbsp;</FONT><FONT face=Arial 
    size=2>It&nbsp;was&nbsp;on Network Security I think a boof you have read or 
    are reading.</FONT></DIV>
    <DIV><FONT face=Arial size=2>Was it on Network Security </FONT><FONT 
    face=Arial size=2>in general ie: Linux/Unix and Windows. If so could you 
    please mention the title of this book again. I've been reading Hacking 
    Exposed second edition. (Mc Graw Hill press) ,and Hack Proofing your Network 
    Internet Tradecraft. (Syngress press) also do you know of any books on 
    Linux/Unix Security.</FONT><FONT face=Arial size=2>I've been getting 
    NetBio's hits and SMTP hits which brought down my Celeron Box, but 
    everything was backed-up anyways and my other boxes are up and running. 
    Right this vary minute I'm low level formatting the HDD's on the Celeron to 
    reinstall Win 98 SE Second Version.</FONT></DIV>
    <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
    <DIV><FONT face=Arial size=2>I'd like an option on the subject of 
    dual-booting a version of Linux on this 
    celeron&nbsp;box&nbsp;I&nbsp;was&nbsp;thinking&nbsp;of RedHat</FONT><FONT 
    face=Arial size=2>&nbsp;7.2 for Intel. Do you have any suggestions 
    that&nbsp;</FONT><FONT face=Arial size=2>is of </FONT><FONT face=Arial 
    size=2>another choice than RedHat&nbsp;7.2.?&nbsp;&nbsp;There are 2. 13gig 
    HDD's on the box in question,&nbsp;768mb of ram,</FONT></DIV>
    <DIV><FONT face=Arial size=2>ISA 56K modem, and all standard subsystem 
    parts\boards running on this 
box.</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
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