Can I run a port scan to a "target" machine from the internet?
I was wondering if I could run a port scan on my home network from a remote network. I was wondering if I could use a site like GRC shields up to scan my home network? If not, might I be able to use a dedicated port scanning application to do this. Any suggestions on either a web based tool or a good windows port scanner app? TBH NuxHeadz
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Warining: It may be illegal to scan someones n/w without his/her permission. regards |
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i'm not much aware of ssh. But if in your laptop just a brower is open then it doesn't require port no. 80 to be open. "http" servers are required to be listening on port no. 80 to fetch services to clients. Browser is just a client of that and it will surely be using some port no. more than 1023 (0-1023 are reserved) on your machine. run nmap with the "-A" <without ""> option to see which services and which version of there are running on your machine. #nmap --v -A <your IP address> regards regards |
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root@laptop:/mnt/hda5/vids# nmap -A 67.190.X.X Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2006-05-18 01:18 EDT Interesting ports on c-67-X-X.hsd1.co.comcast.net (67.190.X.X): (The 1662 ports scanned but not shown below are in state: closed) PORT STATE SERVICE VERSION 80/tcp open http? 1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at http://www.insecure.org/cgi-bin/servicefp-submit.cgi : SF-Port80-TCP:V=3.81%D=5/18%Time=446C0398%P=i686-pc-linux-gnu%r(GetRequest SF:,1430,"HTTP/1\.0\x20200\x20Ok\r\nServer:\x20micro_httpd\r\nDate:\x20Wed SF:,\x2025\x20Mar\x201970\x2009:07:16\x20GMT\r\nCache-Control:\x20no-cache SF:\r\nPragma:\x20no-cache\r\nExpires:\x200\r\nContent-Type:\x20text/html\ SF:r\nConnection:\x20close\r\n\r\n<html>\r\n<head>\r\n<meta\x20http-equiv= SF:\"Content-Type\"\x20content=\"text/html;\x20charset=iso-8859-1\">\r\n<l SF:ink\x20rel=\"stylesheet\"\x20href=\"styles\.css\"\x20type=\"text/css\"> SF:\r\n<script\x20language=\"Javascript\"\x20src=\"language\.js\"></script SF:>\r\n<script>assign_var\(\);</script>\r\n<script\x20language=\"JavaScri SF:pt\"\x20src=\"showMenu\.js\"></script>\r\n<script>\r\nstrHtml='<title>' SF:\+i1\+'</title>';\r\ndw\(strHtml\);\r\n<!--\r\nvar\x20wanStatus\t='Up'\ SF:x20\?\x20'Up'\x20:\x20'Not';\r\nvar\x20helpItem\x20\t='';\r\nvar\x20men SF:uSection\t='';\r\nvar\x20menuItem\t='';\r\nvar\x20isRouter\t='1'\x20\?\ SF:x20'1'\x20:\x20'0';\r\nvar\tisPS\t\t=''\x20\?\x20''\x20:\x20'0';\r\nvar SF:\x20isAPmode\r\nif\('vlan1'\x20==''\x20\|\|\x20'1'=='0'\)\r\n\tisAPmode SF:='1';\r\nelse\tisAPmode='0';\r\nvar\x20bssid\x20=\x20'00:11:50:5e:fc:1f SF:';\r\nif\(isPS=='1'\){\r\nvar\x20prStatus='';\r\nvar\x20t0=prStatus\.in SF:dexOf\('<delimit>'\);\r\nvar\x20t1=prStatus\.i")%r(HTTPOptions,111,"HTT SF:P/1\.0\x20501\x20Not\x20Implemented\r\nServer:\x20micro_httpd\r\nDate:\ SF:x20Wed,\x2025\x20Mar\x201970\x2009:07:16\x20GMT\r\nContent-Type:\x20tex SF:t/html\r\nConnection:\x20close\r\n\r\n<HTML><HEAD><TITLE>501\x20Not\x20 SF:Implemented</TITLE></HEAD>\n<BODY\x20BGCOLOR=\"#cc9999\"><H4>501\x20Not SF:\x20Implemented</H4>\nThat\x20method\x20is\x20not\x20implemented\.\n")% SF:r(RTSPRequest,111,"HTTP/1\.0\x20501\x20Not\x20Implemented\r\nServer:\x2 SF:0micro_httpd\r\nDate:\x20Wed,\x2025\x20Mar\x201970\x2009:07:16\x20GMT\r SF:\nContent-Type:\x20text/html\r\nConnection:\x20close\r\n\r\n<HTML><HEAD SF:><TITLE>501\x20Not\x20Implemented</TITLE></HEAD>\n<BODY\x20BGCOLOR=\"#c SF:c9999\"><H4>501\x20Not\x20Implemented</H4>\nThat\x20method\x20is\x20not SF:\x20implemented\.\n")%r(Help,FA,"HTTP/1\.0\x20400\x20Bad\x20Request\r\n SF:Server:\x20micro_httpd\r\nDate:\x20Wed,\x2025\x20Mar\x201970\x2009:07:3 SF:1\x20GMT\r\nContent-Type:\x20text/html\r\nConnection:\x20close\r\n\r\n< SF:HTML><HEAD><TITLE>400\x20Bad\x20Request</TITLE></HEAD>\n<BODY\x20BGCOLO SF:R=\"#cc9999\"><H4>400\x20Bad\x20Request</H4>\nCan't\x20parse\x20request SF:\.\n"); Device type: general purpose Running: Linux 2.4.X|2.5.X OS details: Linux 2.4.0 - 2.5.20 Uptime 83.381 days (since Thu Feb 23 15:10:57 2006) Nmap finished: 1 IP address (1 host up) scanned in 70.014 seconds Is this something to be concerned about? I don't recall nmap showing port 80 as open before? Edit: I'm showing service thttpd running and I don't run any sort of websever. I'm thinking this is the service that has opened port 80. I killed that process and now port 80 is closed.. What the heck could have caused that service to start? Time for more research. Thanks |
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regards |
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root@laptop:/etc# nmap 67.190.X.x Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2006-05-18 04:06 EDT Interesting ports on c-67-190-X-X.hsd1.co.comcast.net (67.190.1X.X): (The 1662 ports scanned but not shown below are in state: closed) PORT STATE SERVICE 80/tcp open http Nmap finished: 1 IP address (1 host up) scanned in 1.441 seconds Time to run some more scans at home to see what the hell has opened my port 80!!! Grrrrr angry user. |
Execute
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/sbin/chkconfig --list |
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OK. Try looking into directories like
/etc/init.d, /etc/rc.d, etc. |
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