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I'm suspicious that the switchport isn't up - what does "show interface fa0/1 switchport" say? With the exception of DTP (dynamic trunking protocol), trunking is unidrectional, which is to say one side of the trunk doesn't necessarily need to agree with the other side. Not that you'll get proper traffic flows if trunks are mismatched, but a non-trunking ...


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Either the other side of that link is not configured for trunking, does not support trunking, or you are not matching your encapsulation methods. Is the other side a Cisco switch, or something else?


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A port must have a VLAN assignment. If you need it to be completely disconnected, set it to a nonexistent VLAN and shut down the port. interface fa0/1 switchport access vlan 901 no switchport access vlan 1 shutdown (I'm not sure if the "no" is required. Don't have a switch at my fingers with an open port to test). That said, shutdown should be sufficient ...


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Problem solved. We had a CentOS Distro where when installing the httpd server it was not automatically adding the rules to the iptables.


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Since the answer body has to be at least 30 symbols, I need to write some stuff here, even the totally dull one, though netstat -aun or even man netstat would be enough.


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I had a feeling this was simple, but perhaps this will help someone. I just needed to add an exception to my security group (ie my firewall) through my AWS console. I have come across this exact scenario several times before, after spending an hour plus checking my server's firewall. So I hope this will be a reminder to myself and others to check other ...


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A virtual host definition by itself doesn't create any HTTP ports. It is only used to specify which applications accept HTTP requests received via which HTTP ports (this includes HTTP ports local to the application server and HTTP ports on a Web server in front of the application server). To actually listen on a given port, you have the following options: ...


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I received the same message when trying to use the ls command to list the files stored on a UNIX FTP host server from my Ubuntu command line. I was able to successfully log in using ftp ftp.example.com and entering my username and password when prompted. However, I would receive the 150 Opening ASCII mode data connection message and nothing ever happened. ...



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