Stack Exchange

Teun Vink

Netherlands

http://teun.tv

NOC engineer/architect and security engineer for a Dutch ISP.

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145
Logged out of Facebook on all devices on a sudden. Should I be worried about being hacked?
security.stackexchange.com

99
How can ISPs handle DDoS attacks?
security.stackexchange.com

87
How to find live hosts on my network?
security.stackexchange.com

87
Is "IPv10" a joke or a serious RFC draft?
networkengineering.stackexchange.com

71
What is the equivalent of the Linux command "sudo fdisk -l" in MacOS?
superuser.com

64
Why isn't a client-side password complexity check considered secure?
security.stackexchange.com

42
Unknown suspects hijacking our WiFi. Caught their MAC addresses
security.stackexchange.com

41
Why does ipv6 specify 128 bit address, when there are only 48 bits in MAC addresses?
networkengineering.stackexchange.com

39
Is it illegal to DDoS a phishing page?
security.stackexchange.com

38
Reason for both a MAC and an IP address
networkengineering.stackexchange.com

33
What stops someone from configuring their network with IP addresses they do not own?
networkengineering.stackexchange.com

26
Is it common for ISPs to connect to each other directly?
networkengineering.stackexchange.com

25
Webserver DDOS protection without giving away private keys (https, tls, ssl)
security.stackexchange.com

23
Why isn't multicasting more popular?
networkengineering.stackexchange.com

22
How can ISPs on one continent connect to ISPs on another continent?
networkengineering.stackexchange.com

21
Why does HSTS not automatically apply to subdomains to enhance security? For what reason would someone not want HSTS on every subdomain?
security.stackexchange.com

20
Why are rings not a favorite option in IT networks?
networkengineering.stackexchange.com

19
Is PoE compatible with Gigabit Ethernet?
networkengineering.stackexchange.com

18
Can I announce prefix 161.117.25.0/24 even though I don't have all of /24 IPs?
networkengineering.stackexchange.com

17
Can my MAC address be identified by a web site?
networkengineering.stackexchange.com

17
Should I use HTTPS on a domain that will only be used for redirection?
security.stackexchange.com

17
Is it a bad idea to bypass login wall for a specified IP address?
security.stackexchange.com

17
Is an SSL Cert needed for redirects?
serverfault.com

17
How does IP address spoofing on the Internet work? Who can do it?
security.stackexchange.com

16
Subnetting a IPv4 /24 into 7 equally large subnets
networkengineering.stackexchange.com

15
DDOS using ntp server
serverfault.com

14
netstat -nr returning "0/1" -- what does that mean?
networkengineering.stackexchange.com

14
What happens in the real world Internet - BGP and OSPF?
serverfault.com

14
IPv6 link-local vs unique local
networkengineering.stackexchange.com

14
Understanding ARP and Routers
networkengineering.stackexchange.com

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