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I have received many http header request with random parameter in my web server like : HEAD /?723 HTTP/1.1 \host: sample \accept-encoding: gzip, deflate \content-length: 0 \Connection: close

Does any one know if they are valid or not? i want to know if my server is the target of attack!

Sepideh_j
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  • What is the user-agent? – Vasan Nov 18 '17 at 10:25
  • this is the full request I have received, there is no user-agent in it! how may I find it? – Sepideh_j Nov 18 '17 at 10:29
  • If it appears, it will be one of the HTTP headers, but I guess you did not get it. Are you able to identify the IP address from which request came? You might get some clue by doing a whois search of the requestor's IP address. HEAD requests are usually used for checking broken links. – Vasan Nov 18 '17 at 10:50

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