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jcbermu
  • Member for 10 years, 3 months
  • Last seen this week
  • Madrid, Spain
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About

I have been in networking for more than 20 years, during that time I've expanded my knowledge to Linux, python , javascript and VBA for Excel.

Recently my interest has been in VoIP and mainly Asterisk.

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Top posts
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89
Why was port 80 chosen as the default HTTP port and 443 as the default HTTPS port?
Nov 6, 2015
83
Did Windows ever support any hardware architectures other than x86?
Apr 7, 2016
77
Why can't I use the first or last address in a subnet?
Aug 9, 2016
67
What happens to TCP connections when I remove the ethernet cable?
May 7, 2015
60
Confusion with storage capacity (powers of 10 and 2)
May 25, 2016
56
Do most music CDs contain the needed info about their tracks?
Jan 12, 2016
45
Pinging different IP address than what I entered
Mar 26, 2015
43
AND function gives TRUE result for empty, BLANK cell - why?
Aug 31, 2016
39
What can I do to protect my data on laptop if it were stolen?
Dec 4, 2017
36
How do I save a link to a webpage as a shortcut in the Windows file manager?
Nov 5, 2015
Top network posts
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50
Setting multiple groups as directory owners
47
Difference between owner/root and RUID/EUID
31
What is $PWD? (vs current working directory)
22
How does a packet get corrupted in a network?
21
What's the difference between "errors:" "dropped:" "overruns:" and "frame:" fields in ifconfig RX packets output?