I am using Ubuntu 13.10 and come from Ubuntu 13.04.   First check locahost, It's work fine. PhpMyAdmin is also work fine. I look some related problem . But some similarities with this answer and still I have problem when I write for-example http://localhost/PHP_Work/ in a browser.  Problem  Forbidden You don't have permission to access /PHP_Work/ on this server.   Path of PHP_Work folder is : /var/www/PHP_Work  Following results of line write by using terminal:  conf.d files  zeb@zeb-Lenovo-B570:/etc/apache2/conf.d$ ls  Result:  empty folder  zeb@zeb-Lenovo-B570:/etc/apache2/conf-available$ ls  Result:   charset.conf            localized-error-pages.conf    security.conf javascript-common.conf  other-vhosts-access-log.conf  serve-cgi-bin.conf   Site File  zeb@zeb-Lenovo-B570:/etc/apache2/sites-available$ ls  Result: 000-default.conf  default-ssl.conf  Don't know how and what changes make in virtual host directives. Or what should I do to sort it out , any help would be appreciated.
After upgrading from Ubuntu 13.04 server, the www pages won't display themselves.     Error 403 Forbidden You don't have permission to access / on this server.   I've changed access control saves from apache2.2 to apache2.4, but that didn't work. What else could I do?
Did any Quidditch games ever end by agreement of the Captains? The game can only end when the Snitch has been caught, or by mutual agreement of the two teams' Captains; the latter is very rare, however, as one team would have to lose. (source: HP Wikia on Golden Snitch)   Is there an example from canon of this resolution to the game ever happening? Progressive Draw 2 and Draw 4 Uno When playing with progressive Draw 2 and Draw 4 and (say that there are 2 players playing) and    Player 1 goes out with a Draw 2  Player 2 puts down a Draw 2    Does player 1 have to pick up 4 cards? What does linear time series refer to? In some papers or documents, "linear times series" seems to refer to a time series that can be modeled as a linear AR (auto-regressive) model.   In other places, "linear time series" seems to refer to a time series with a linear trend.   When someone just drops "linear time series" out of the blue without any context, what do they mean usually? Before:  After:   The pros:  Speeds up the tag synonym voting process. Easier to locate (as opposed to navigating to each individual tag wiki page). Encourages users to vote on more than one at a time.  The cons:  Serial up/downvoting. But this really isn't even an issue because, (1) only experienced users can vote on tag synonyms, and (2) more than one vote is required to approve a tag synonym, so the occasional serial up/downvoter won't significantly impact the overall process. centered logo ok? I'm designing a website for a rather unknown software company. The company likes the design but cannnot get along with our desicion to center their logo on the top of their page, although all the other elements are centered. Therefore a left aligned logo wouldn't look good. I know, it seems all UX studies prove them right, but positioning the logo in the center isn't a unpopular practice anymore.   Furthermore I think the way we read a website has adapted the last 10 years. Are there any studies about this topic that could help prove my point?  Thanks I remember reading a sci-fi story where astronauts visit a planet, which is covered in stationary aliens with mile long necks that filter feed from the atmosphere.  It was published between 1960 and 2000.    It was in English and involved a pair of astronauts that went from planet to planet on a tour or something, though I don't know details of any other planets they visited. This code is part of a larger code that generates an Arithmetic Quiz, although the code I have show below just saves the score that the user got on the test and their name. When saving the code it checks if the user has taken the quiz before. If the user has taken the quiz before it saves it as 'Older Score' or 'Oldest Score', however if the user has not taken the quiz before it generates a new row for them. Additionally it works out the average score and highest score for all users it has the data for. For my task I'm supposed to make the code as short as possible.  name = ""+first_name+" "+last_name rows_data = [] class_file_names = ['Class 1.csv', 'Class 2.csv', 'Class 3.csv'] scan = open(class_file_names[int(math_class)-1], 'r+') rows = csv.reader(scan) for row in rows:     rows_data.append(row) scan.close() class_file_names=['Class 1.csv', 'Class 2.csv', 'Class 3.csv'] csvfile=open(class_file_names[int(math_class)-1], 'w', newline="") fieldnames = ['Student Name', 'Oldest Score', 'Older Score', 'Latest Score', 'Average', 'Highest'] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() nameFound=False for x in rows_data[1:]:     if x[0] == name:         x[3]=x[2]         x[2]=x[1]         x[1]=str(score)         x[4]=(int(x[1])+int(x[2])+int(x[3]))/3         x[5]=max(x[1],x[2],x[3])         nameFound=True     writer.writerow({'Student Name': x[0], 'Oldest Score': x[3], 'Older Score': x[2], 'Latest Score': x[1], 'Average': x[4], 'Highest' : x[5]})  if nameFound==False:     writer.writerow({'Student Name': name, 'Latest Score': score, 'Older Score': '0', 'Oldest Score': '0', 'Average': score, 'Highest': score}) csvfile.close() input("Test complete! Press anything to close.") How to include graphics with spaces in their path? I want to import graphics into my main input file using the macro \includegraphics. It does not work if the filename contains spaces.   also discusses this subject, but there is no solution there.  My compilation routine is latex->dvips->ps2pdf (because of PSTricks). Cannot get grub menu to timeout (or go away) I am running Ubuntu 12.04.  I cannot for the life of me get the grub menu (with options) to go away.  I would like it to auto-boot into the first option. I've edited /etc/default/grub so that it looks like the following:  GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2&gt; /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX=""   After this, I ran sudo update-grub. Then I realized that I had grub 2, so I ran sudo update-grub2 (both make it look like they create the grub.cfg file successfully.  I restart my computer and it goes back to the grub menu and just sits there until I make a choice. This is not desirable if the power goes out... :-)  I also tried reinstalling grub using sudo grub-install /dev/sda - also unsuccessful Assume you are given two objects whose exact locations are unknown, but are distributed according to normal distributions with known parameters (e.g. $a \sim N(m, s)$ and $b \sim N(v, t))$. We can assume these are both bivariate normals, such that the positions are described by a distribution over $(x,y)$ coordinates (i.e. $m$ and $v$ are vectors containing the expected $(x,y)$ coordinates for $a$ and $b$ respectively). We will also assume the objects are independent.  Does anyone know if the distribution of the squared Euclidean distance between these two objects is a known parametric distribution? Or how to derive the PDF / CDF for this function analytically? How can I keep multiple live/bootable ISO images on a single USB drive? I am looking to create a USB flash drive that I can put multiple  ISO images on and select which boots from startup. The ideal candidate supports Linux and Windows-based ISO images, and is relatively simple. It also must have some reasonable process for adding and removing an ISO image from the drive/list.    Things that I'm not looking for in this specific question:    or other swiss-army knife live CDs. The point is to boot any one of multiple CDs, not to boot a (certainly useful) utility CD. Installing a single live CD to a USB drive. I'd like to have multiple ISO images, selectable at startup.   I don't have a specific purpose in mind, possibilties include a single drive with a  variant, Ubuntu desktop, UBCD4Win for DOS, the Offline NT Password Cracker, etc.  Flexible and easy to use are the name of the game! How can you accelerate without moving? How to make partitions mount at startup? How do you make HDDs and partitions mount at startup on Ubuntu?  I always keep my media and data files on separate partitions - one 2tb HDD and a 400 odd gig partition.  I have been trying to swap the default folder location for the home directory to my other drives.  It works when I change the /home/user_name/.config/user-dirs.dirs file to the directories I want, but only until I reboot the system. I am only assuming that the drives not mounting is the problem with it, but it would be helpful either way.  If any one knows another reason for why the directories change back to default each time that would be good also. I run windows 7. I run a Minecraft server, but I can only host around 9 players before lag appears.   I heard that Ubuntu can run a server with much better performance than Windows 7. I kind of like the whole idea of Ubuntu, but I don't want to change my OS to Unix or anything else.  Basically, my question is, does running a server (specifically and Minecraft server) run easier and faster on a Ubuntu server? On top of that, how would one set that up? What is the number of automorphisms (including identity) for permutation group $S_3$ on 3 letters? What is the number of automorphisms (including identity) for permutation group $S_3$ on 3 letters?  I believe the answer for this is 6. As we can write the group elements as below   (a)(b)(C) (ab)(c) (ac)(b) (bc)(a) (abc) (bac)   Can we generalize that for any $S_n$ onto $n$ the number of automorphisms will be $n!$ Also I cannot find this anywhere in my text, can we have a permutation $S_n$ onto $m$ where $n\neq m$? (for eg: is it possible to have a permutation group say $S_5$ on say 2 elements?) I am not asking for a solution to speed it up, i simply want to know how long it should take!  I would also like a way to speed it up but not something technical, im new to Blender! Find $x$ in   $$ \Large 2 = x^{x^{x^{\:\cdot^{\:\cdot^{\:\cdot}}}}}$$   A trick to solve this is to see that $$\large 2 = x^{x^{x^{\:\cdot^{\:\cdot^{\:\cdot}}}}} \quad\implies\quad 2 = x^{\Big(x^{x^{x^{\:\cdot^{\:\cdot^{\:\cdot}}}}}\Big)} = x^2 \quad\implies\quad x = \pm \sqrt{2} $$  Are these solutions correct? If not, why? If yes, are there other solutions?    PS: An extension of this discussion can be found in Cell copy results in jaggy, aliased output Adding a citation after paper is accepted I am a junior researcher in mathematics. I worked simultaneously on proving Theorem A and Theorem B. They both generalize Theorem X in two different directions. Theorem X was proved several years ago (not by me). The proofs of Theorem A and Theorem B use very different techniques, and so I decided ahead of time to write one paper for each.  I finished proving Theorem A before I finished proving Theorem B. Then, I submitted Paper A to a journal (and the arXiv) proving Theorem A. Paper A includes a survey of related problems in the introduction. After a short while, I managed to prove Theorem B, and two months after the submission of Paper A, I submitted Paper B (to a different journal, and also to the arXiv). Now, six months after the submission of Paper A, it is accepted with requests for minor corrections. There is no response yet regarding Paper B.     In this situation, is it a reasonable/common to add one/two sentences to the survey in introduction of Paper A, explaining and citing the arXiv prepreint of Paper B, in addition to the minor corrections the referees asked for? (and letting the editor and referees know that I did that in my answer to their reports which comes along with the corrected manuscript).   Note that I am not asking if it is ok to cite a preprint. This is something I do, and so do other people, at least in math. My question is about making a change, after acceptance, which was not asked by the referees and the editor. Snap entire selection to the 3d cursor in edit mode Is there any way to snap an entire selection to the 3d cursor in edit mode?  Shift+S > Selection to Cursor snaps each individual vertex to the cursor, so the shape is lost: