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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>The first thing to do is look at:<o:p></o:p></p><p class=MsoNormal><a href="https://wiki.squid-cache.org/KnowledgeBase/HostHeaderForgery">https://wiki.squid-cache.org/KnowledgeBase/HostHeaderForgery</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It should clear couple doubts for you.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Eliezer<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>----<o:p></o:p></p><p class=MsoNormal>Eliezer Croitoru<o:p></o:p></p><p class=MsoNormal>Tech Support<o:p></o:p></p><p class=MsoNormal>Mobile: +972-5-28704261<o:p></o:p></p><p class=MsoNormal>Email: ngtech1ltd@gmail.com<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From: </b><a href="mailto:Ankit.Dixit@eurostar.com">DIXIT Ankit</a><br><b>Sent: </b>Tuesday, June 30, 2020 10:46 AM<br><b>To: </b><a href="mailto:ngtech1ltd@gmail.com">Eliezer Croitoru</a>; <a href="mailto:rousskov@measurement-factory.com">Alex Rousskov</a>; <a href="mailto:squid-users@lists.squid-cache.org">squid-users@lists.squid-cache.org</a><br><b>Subject: </b>RE: [squid-users] Squid memory consumption problem<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Elizer,<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>We installed Squid 4.12 on production server, amazon Linux 2, successfully but I could see below messages in the logs for SECURITY ALERT: Host header forgery detected. These are getting generated very frequently.<o:p></o:p></p><p class=MsoNormal>Can we ignore this Or is it advised to suppress these alerts?<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><span style='background:yellow;mso-highlight:yellow'>kid2| SECURITY ALERT: on URL: 5-25-3-app.agent.datadoghq.com:443</span><o:p></o:p></p><p class=MsoNormal><span style='background:yellow;mso-highlight:yellow'>2020/06/30 07:41:29 kid1| SECURITY ALERT: Host header forgery detected on local=IP remote=IP FD 97 flags=33 (local IP does not match any domain IP)</span><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><div><p class=MsoNormal style='text-autospace:none'><b><span style='color:#1F497D'>Regards,</span></b><o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><b><span style='color:#1F497D'>Ankit Dixit|IS Cloud Team</span></b><o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-family:"Candara",sans-serif;color:#7F7F7F'>Eurostar International Ltd</span></b><o:p></o:p></p><p class=MsoNormal><b><span style='font-family:"Candara",sans-serif;color:#7F7F7F'>Times House | Bravingtons Walk | </span></b><b><span style='color:#7F7F7F'>London N1 9AW</span></b><o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><b><span lang=FR style='color:#7F7F7F'>Office: +44 (0)207 84 35550 (Extension– 35530)</span></b><o:p></o:p></p></div></div></body></html>