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net:net [2024/02/12 11:37] – Bernard Condraunet:net [2026/09/01 12:42] (current) – [SSL & Ports] Bernard Condrau
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   * [[http://whois.domaintools.com/|Whois Lookup]]   * [[http://whois.domaintools.com/|Whois Lookup]]
   * [[https://www.whatismybrowser.com/detect/what-is-my-user-agent|What is my User Agent]]   * [[https://www.whatismybrowser.com/detect/what-is-my-user-agent|What is my User Agent]]
-  * [[https://www.sslshopper.com/ssl-checker.html|SSL checker]] 
   * [[http://amibehindaproxy.com/|Am I Behind A Proxy?]]   * [[http://amibehindaproxy.com/|Am I Behind A Proxy?]]
   * [[http://www.iplocation.net/|IP Location Finder]]   * [[http://www.iplocation.net/|IP Location Finder]]
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 ===== DNS & Mail ===== ===== DNS & Mail =====
 +  * [[https://www.nslookup.io/|NsLookup]]
   * [[net:tvbox|Watch TV which is restricted to domestic IP]]   * [[net:tvbox|Watch TV which is restricted to domestic IP]]
   * [[https://easydmarc.com/tools|SPF, DKIM, DMARC]]   * [[https://easydmarc.com/tools|SPF, DKIM, DMARC]]
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   * [[https://www.grc.com/dns/dns.htm|DNS Nameserver Spoofability Test]]   * [[https://www.grc.com/dns/dns.htm|DNS Nameserver Spoofability Test]]
   * [[https://www.whatsmydns.net/#CNAME/|DNS propagation checker]]   * [[https://www.whatsmydns.net/#CNAME/|DNS propagation checker]]
 +  * [[https://dnspropagation.net/|DNS propagation test]]
   * [[https://dnsleaktest.com/|Check nameservers used]]   * [[https://dnsleaktest.com/|Check nameservers used]]
   * [[http://www.digwebinterface.com/?hostnames=&type=Reverse&ns=resolver&useresolver=8.8.4.4&nameservers=|Dig web interface]]   * [[http://www.digwebinterface.com/?hostnames=&type=Reverse&ns=resolver&useresolver=8.8.4.4&nameservers=|Dig web interface]]
   * [[https://www.youtube.com/watch?v=nlvJ6ZaaWLU|How to run your own DNS Resolving Server]]   * [[https://www.youtube.com/watch?v=nlvJ6ZaaWLU|How to run your own DNS Resolving Server]]
 +  * [[https://now-dns.com/?p=home|Now-DNS: Free DynDNS service and clients]]
   * [[net:dns|DNS Servers]]   * [[net:dns|DNS Servers]]
  
 ===== SSL & Ports ===== ===== SSL & Ports =====
   * [[https://www.sslshopper.com/ssl-checker.html|SSL Checker]]   * [[https://www.sslshopper.com/ssl-checker.html|SSL Checker]]
 +  * [[https://www.ssllabs.com/ssltest/|SSL Server Test]]
 +  * [[https://www.immuniweb.com/ssl/|SSL Security Test]] (can check imap)
 +  * [[https://www.plesk.com/kb/support/how-to-verify-that-ssl-for-imap-pop3-smtp-works-and-a-proper-ssl-certificate-is-in-use/|How to verify that SSL for IMAP/POP3/SMTP works and a proper SSL certificate is in use]]
   * [[http://www.yougetsignal.com/tools/open-ports/|Port Forwarding Tester]]   * [[http://www.yougetsignal.com/tools/open-ports/|Port Forwarding Tester]]
-  * [[http://canyouseeme.org/|Open Port Check Tool]] +  * [[https://portchecker.co/|Port Checker]]
-  * [[https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/3/html/Security_Guide/s1-server-ports.html|Verifying Which Ports Are Listening]]+
  
 ===== Email ===== ===== Email =====
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 ===== Speed ===== ===== Speed =====
 +  * [[https://www.webpagetest.org/|Web Page Test]]
   * [[http://speedtest.3bb.co.th/|3BB Speed Test]]   * [[http://speedtest.3bb.co.th/|3BB Speed Test]]
 +  * [[https://www.jeffgeerling.com/blog/2023/testing-iperf-through-ssh-tunnel|Testing iperf through an SSH tunnel]]
   * [[https://tools.pingdom.com|Pingdom Website Speed Test]]   * [[https://tools.pingdom.com|Pingdom Website Speed Test]]
   * [[http://www.whatsmyua.com/|What is my browser's User Agent]]   * [[http://www.whatsmyua.com/|What is my browser's User Agent]]

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