109 reputation
19
bio website oneiros.de
location Duisburg, Germany
age 49
visits member for 3 years
seen Jul 17 at 18:30

TeX user since 1989, mostly LaTeX. For some time maintainer of pdfTeX, since then a close friend of the LuaTeX team.


Apr
23
comment NTP DDoS Attack on Home Servers
Get professional help. In the meantime, this page lists recommended ntpd configuration. And please read catb.org/~esr/faqs/smart-questions.html
Apr
4
comment How does a country block its citizens from accessing a site?
@SteveJessop: I'm talking about technical problems. Can you set the DNS server on your non-rooted IPhone?
Apr
4
revised Deanonymizing users by introducing structured delays to the network?
retag (since the retag priviledge is gone I have to go through suggested edits)
Apr
3
suggested suggested edit on Deanonymizing users by introducing structured delays to the network?
Apr
3
comment How does a country block its citizens from accessing a site?
Cicurmventing even the simplest blocking methods with mobile devices is difficult if not quite impossible: How do you get your non-rooted IPhone to use a different DNS server over 3G?
Feb
5
comment ECDSA vs ECDH vs Ed25519 vs Curve25519
The "sales pitch" for 25519 is more: It's not NIST, so it's not NSA. Not speed.
Dec
24
awarded  Commentator
Oct
17
comment How do I prevent copying of my PDF files?
The JavaScript-foo will prevent printing the PDF with commercial printers as no high-end RIP will be able to handle it (as they are PDF/PS-RIPs, not Browsers).
Aug
31
awarded  Civic Duty
Jul
12
comment How to remove ssh rootkits?
See How do you explain the necessity of "nuke it from orbit" to management and users?
May
2
comment What is the actual value of disabling remote root login using ssh?
Don't use su, use sudo - no need for a root password.
Feb
28
awarded  Organizer
Feb
28
revised What security risks does Firefox 19's built-in PDF reader (pdf.js) bring?
add tag (Comment must be at least 10 chars long)
Feb
28
suggested suggested edit on What security risks does Firefox 19's built-in PDF reader (pdf.js) bring?
Feb
11
revised Our logs showing a lot of SSH brute force attacks originating on Port 11
rm thanks (edit summary must be at least 10 long)
Feb
11
suggested suggested edit on Our logs showing a lot of SSH brute force attacks originating on Port 11
Feb
7
reviewed Needs Improvement Are man-in-the-middle attacks against p2p systems realistic?
Feb
7
reviewed Satisfactory Is it preferable to perform encryption using database functions or code?
Feb
7
reviewed Needs Improvement Do any DNS registrars support multi factor authentication?
Feb
7
reviewed Excellent Security tradeoffs of pathname-based MAC (e.g., TOMOYO, grsecurity, AppArmor, …)