nmap | Clipmarks


	nmap

prostoalex

1-5-2008 8:50 PM

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tags:

linux, unix, networking

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/d274fe5f-b992-4370-89ae-53e743054c93/19BA75A3-0967-4EFA-8DC0-E7A8806841AE/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://blog.fourthirty.org/?p=55" href="http://blog.fourthirty.org/?p=55" style="font-size: 11px;">blog.fourthirty.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://blog.fourthirty.org/?p=55"><P align="justify">Nmap is a very powerful tool with LOTS of options and features to visualize your network. Check which services are running on various hosts and find suspicious malicious programs running in your network. Even though Nmap is the swiss-army knife for network scanning, most of its benefits can be gained by the average Network Administrator without diving deep in to its complications. Chances are, most of the time you will find yourself using common switches even if you know all of them.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://blog.fourthirty.org/?p=55"><P><STRONG>The basic syntax for Nmap is ; nmap &lt;IP ADD&gt; , for eg:</STRONG>
<CODE>
nmap 202.21.192.1</CODE></P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://blog.fourthirty.org/?p=55"><P align="justify">the above command scans the given host with defaults - standard TCP connect method (-sT option) and known ports (those specified in the /etc/services file. You may need to scan a whole subnet, in which case you can use:</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://blog.fourthirty.org/?p=55"><P><CODE> nmap 202.21.192.1/24
nmap 202.21.192.*</CODE></P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://blog.fourthirty.org/?p=55"><P>both the command would do the same here.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/19BA75A3-0967-4EFA-8DC0-E7A8806841AE/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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