I am using Centos 6.5, Apache 2.2.15 with SSL. Due to heartbleed I have updated openssl to release 16.el6_5.7 and I have restarted the httpd service. I am using default Apache certificate and key:  */etc/pki/tls/certs/localhost.crt  /etc/pki/tls/private/localhost.key*   So my question is: after updating openssl should I create new pair of certificate and key or is it safe to use default?  Thank you.
This is a  about understanding and remediating the Heartbleed security issue.   What exactly is CVE-2014-0160 AKA "Heartbleed"? What is the cause, what OSs and versions of OpenSSL are vulnerable, what are the symptoms, are there any methods to detect a successful exploit?   How can I check to see if my system is affected? How can this vulnerability be mitigated? Should I be concerned that my keys or other private data have been compromised? What other side effects should I be concerned about?
I was reading Brian Greene's "Hidden Reality" and came to the part about Hawking Radiation. Quantum jitters that occur near the event horizon of a black hole, which create both positive-energy particles and negative-energy particles, produce the so-called Hawking radiation. However, I do not understand why only the negative-energy particles are being absorbed into the black hole, while the positive-energy particles shoot outward. Shouldn't there be 50/50 chance that each type of particle is being absorbed by the black hole? Also, the book mentions that a negative-energy particle would appear to an observer inside the black hole as positive. Why? How to shop for mortgage rates ? I have already been prequalified with 3.8% (but I am sure I can do better :)). Now, I am about to make an offer on a house. So, once the seller accepts my offer, how do I rate shop ?    Do I need to do the rate shopping before making an offer, or after the seller accepts my offer ?  When the seller accepts my offer, then I will go to a banker and submit a full application, so will it be legally binding for me to go with the approved mortgage application ?  Or, once the seller accepts my offer, may I simultaneously apply for a mortgage with 3-4 bankers, and then choose the lowest rate ?     I asked my realtor, but she recommends to go with just one banker (her friend), and not to do any rate shopping. Is it the right way ?   (I live in a state of Arkansas, so I am thinking of going with the local bankers) How to deal with cross-thread access exceptions? Word for obscuring bad or immoral acts with verbiage I have been in many scenarios where people try to obscure/reduce the intensity of a seemingly bad or immoral act using grammar. E.g. Assuming Thomas killed a dog, you could hear something like:     There's essentially nothing wrong about palliating the miserable life   of a despondent being. If there was any issue here, I'd say it's not   consulting a veterinary doctor first but I've come to understand that some people are just straightforward.   How does one react to the above mumbo jumbo? I think there are similar situations also found in law courts. What can this be referred to as? Grammatification, obscure tactics? Mathematically-oriented Treatment of General Relativity Prove that if $\gcd(ab,c)=1$, then $\gcd(a,c)=1$. Do known-plaintext attacks exist for public key encryption? regular expressions / pattern matching on ubuntu command line How do I get started with RAW photography? Having read about the benefits of shooting in RAW as opposed to JPEG (for example ), I'd like to have a go with it myself. However, I'm not really sure how to go about it.  I can turn RAW mode on in my camera (that's easy!), but what do I do with the files when I get them on to my computer? I presume I need to process them to get the RAW data into something that I can work with, but do I need a specific tool for my camera (a Finepix S5100), or will something like the GIMP do what I want? I'm also a little confused about how I then take advantage of the abilities that RAW gives me when I'm processing it on the computer — do RAW processing tools have more processing options than standard tools? What are the basics needed to learn quantum computing? Problem with IMPORTRANGE function in Google Sheets I’m trying to get IMPORTRANGE to work for me with no success. I made two simple spreadsheets:  and . In the destination sheet I’m using the import range function:  =importrange(“1-5F1_zz0ZpGj7SfeQhewsCe0CsrA0eyPbjfmUrLBsyk”,”Sheet1!a1:a1”)   I tried already:   Replacing the , with ; Referencing just the key as well as the full URL in the first argument Switching from “ to ‘ With the sheet name and without it   Not sure what else to do.  Any ideas? What does the "yield" keyword do? What rules say that summoning undead is evil, and what rules say why? $ac\equiv bc \pmod{\!m}\!\!\iff\!\! a\equiv b \pmod{\!\!\frac{m}{(c,m)}}$ [Euclid's Lemma, congruence form] I came across this theorem:   For all integers a,b,c and m&gt;0, if d = GCD(c,m) then a*c ≡ b*c (mod m) iff a ≡ b (mod m/d).  The =&gt;proof states this:  a*c ≡ b*c (mod m) =&gt; m|(a-b)*c                    =&gt; m/d | (a-b)*c/d                   =&gt; m/d | (a-b)                   =&gt; a ≡ b (mod m/d)   I don't understand how to go from step 2 to step 3. The proof states that this is possible because m/d and c/d are coprime. To me this means GCD(m/d, c/d) = 1 but how does this cancel out the whole term? My father in law is travelling to France, for 4 days, (01/07-04/07). Is there a minimum duration for which the travel insurance needed to apply for a Schengen visa must be valid? In other words, can his travel insurance cover just the duration of the trip, or should it last longer? How can I add a "C" wire to my thermostat? Simulate Multiple Monitors I'm trying to find out if there is a product out there to simulate Multiple Monitors on one large monitor/tv?  So take a screen and turn it into something like below...  -------------------------------- |               |              | |               |              | |               |              | |               |              | -------------------------------- |               |              | |               |              | |               |              | |               |              | --------------------------------   Something like this...even though in reality it's a single screen.  A software solution is perfectly fine as long as it functions like the built in Windows 8 functionality (Start screen only consumes the screen it was started on/etc).  If anyone is curious as to the reason.  I'm looking to get a treadmill desk since I'm a developer and don't like being sedentary all day.  So the two options that I see are having 4 monitors and mirroring them (I don't want to have to worry about forgetting to move the window that I need) or getting a large monitor/tv and putting it on an arm that I can simply swivel into place.  There are dual-monitor swivel mounts, but they are EXTREMELY pricey and the ones I've found don't appear to have the range of motion that I'm anticipating needing.  EDIT:  I found ... but I can't find the answer to the start menu question (I've sent the company a message on facebook).  Hoping I hear good news as this appears to offer many of the features I'm wanting.  So Fingers crossed there. Handle .bib in subfiles I have a problem very similar to the question being asked in  . My .bib is references in main.tex. When compiling main, everything works like a charm. Working on the subfiles, I have two issues though (which are most likely related):   I can't access the bib with auto-completion When compiling the subfile, it doesn't insert the citations.   I tried including  \bibliographystyle{plainnat} \bibliography{mybib}   in the subfiles, which also worked smoothly. Obviously, the bibs are included in every chapter of the document when compiling main.tex, then. I tried setting a global boolean in main.tex:  \newboolean{printBibInSubfiles} \setboolean{printBibInSubfiles}{false}    and in the subfiles:  \ifthenelse{\boolean{printBibInSubfiles}}    {}    {\bibliographystyle{plainnat}     \bibliography{../betterbib.bib}}    For some reason, then setting the boolean to false, the "bibliography"-header was printed in the subfiles as well as for the main file, but there was no output of citations under any of the "bibliography"-headers. Furthermore, compiling only the subfiles didn't work correctly.  My document structure is the following:  main.tex:  \begin[document] ... \subfile{sub/dataprocessing} ... \bibliographystyle{plainnat} \bibliography{mybib} \end{document}   the subfiles:  \documentclass[../main.tex]{subfiles} \begin{document} ... \cite{Random2014} ... \end{document}   After all this explanation: the only thing I want is to access the .bib from the subfiles without having to manually uncommenting something when compiling the main file. Any takers?  PS: Obviously, I also tried the solution provided in "" but couldn't get it to work. I don't know whether that would solve my problem anyway, since I don't have the \printbibliography-issue of the thread opener. Is there an uncountable family of infinite parts of $\mathbb N$ with two to two intersection finite? How to calculate $\lim \limits_{n \to \infty}(1 +\frac{a}{n})^n$? I know what solution is $e^a$ but I don't know how to calculate this limit:  $$\lim \limits_{n \to \infty}\left(1 + \frac{a}{n}\right)^n=e^a$$  Can someone explain the steps to me?