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When Nmap shows a port as "filtered," what it means is that it received no response to any probe sent to that port. The usual cause for this is a firewall that is dropping packets destined for those ports, but it can also be the case when there is packet loss between Nmap and the target. Nmap usually does a good job of monitoring the network quality during a ...


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there are different ways that connections can be filters- one would be to simply drop the packets, the other to send a rejection message. I suspect these ports are sending a rejection message rather then just not responding. (In the Linux world you can see this by using DROP vs REJECT - the former just drops the packet, the latter will send back a ...


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It's both. They are running an SSL web site on port 3500. That's why both protocol (https) and port (3500) have to be specified. http is the wrong protocol; and 443 (the default port) is the wrong port.


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The standard HTTP is 80. However, you could always bring up a server and configure it to serve any port with any protocol, including HTTP. Since 80 is the standard, it can be omitted from URLs. If you indeed want to communicate over a different point (e.g., 3500, like you stated in the question), you'd have to explicitly specify it.


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Quite simply because you're explicitly telling your browser to use a specific port. In your specific case your URL says "connect to http://example.com over port 3500" When its not mentioned, its assumed its port 80 for HTTP (with 8080 as an alternate) and 443 as an alternate. The http / https is cause your web browser can handle multiple protocols so you ...


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Near dupes of What is effect of CTRL + Z on a unix\Linux application and http://unix.stackexchange.com/questions/135077/ctrl-c-vs-ctrl-z-with-foreground-job Unless you've fiddled your stty settings, in which case you would know better than to ask this question: Ctrl+Z "stops" a process in common Unix terminology, but "stop" does NOT mean "end". A process ...


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This seems exactly what you need: show controllers utilization Use the show controllers utilization command in EXEC mode to display bandwidth utilization on the switch or specific ports. show controllers [interface-id] utilization (Taken from Catalyst 2960 reference quide)


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If netcat is installet on the client : nc -zw3 <IP> <PORT> && echo "Socket UP & running" || echo >&2 "Socket unreachable"


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Not sure why you'd want two ports but an easier (imo) way to achieve this (assuming you don't need port 10000 from inside the LAN) is just to forward port 10000 on your router to port 22 on the Syn in addition to forwarding 22 to 22. Thus you get both ports to access port 22 from the WAN and need no config changes on the Syn server (changes that will always ...



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