Whether you like it or not,
".xxx" triple x top level domain has been in services for over 2
years. Of course, it is for pornographic websites only. I like the idea because
only a simple filtering mechanism can be used to ban children from accessing
adult websites.
This is Warren Kwok's Internet note pad, electronic diary, online rubbish journal, whatever you might name it ! It is an archive of my random thoughts in a chronological order. I am not good at reporting boring things and change them to lively. If you find this blog boring, sorry that it is your problem.
2014/04/25
2014/04/22
DNS reply larger than 4096 bytes
I
thought I would never be able to generate a DNS query with reply size larger
than 4096 bytes. I was wrong ! Just look at this.
[warren@dnssec ~]# dig any doc.gov | grep SIZE
;; MSG SIZE rcvd: 9735
Of course, the reply has to fallback to TCP instead of UDP. Thanks to US Department of Commerce for letting me to play around with this.
Hackers, don't use this for amplification attacks. You will fail.
[warren@dnssec ~]# dig any doc.gov | grep SIZE
;; MSG SIZE rcvd: 9735
Of course, the reply has to fallback to TCP instead of UDP. Thanks to US Department of Commerce for letting me to play around with this.
Hackers, don't use this for amplification attacks. You will fail.
2014/04/17
2014/04/13
2014/04/10
heartbleed bug
Announcement : If network administrators have difficulty to check whether their SSL private keys are affected by the heartbleed vulnerability, they can send me an email attaching the keys and let me know the websites. I will check for them, free of charge, of course.
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