What are popular / good NoSQL databases?
What are the popular / good NoSQL databases nowadays? MongoDB, CouchDB Find more at https://en.wikipedia.org/wiki/NoSQL and http://nosql-database.org/ Answered by omshivaprakash.
Tutorial
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How to restart Gnome 3 without closing the programs running?
What I want is to just restart Gnome 3 only and not to close and reopen the programs running. Thanks a lot! Just run r in Gnome 3’s “Run command” Box: Alt + F2, then enter r and hit Enter. Gnome 3 will restarts itself only.
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Chrome’s KDE proxy integration broken on KDE / Fedora
Chrome reads the proxy settings from Gnome correctly. However, when I run Chrome under KDE, the proxy integration is broken: In the settings of Chrome, clicking the “Change proxy settings” opens the KDE proxy setting dialog correctly (the command kcmshell4 proxy actually is executed). However, after the proxy settings are made, Chrome does not read…
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How to install .deb packages on Fedora?
I come across some closed source software that only provides .deb packages. Fedora manages packages with rpm/yum. How to install the .deb packages on Fedora? Alien is a tool to convert .deb package to .rpm package: http://joeyh.name/code/alien/ In latest Fedora, the tool alien is in Fedora’s repository. You can use dnf to install the package….
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How to turn my iPhone to a mouse?
iPhone has the touch screen. Is is possible to turn my iPhone to a wireless mouse on Linux? Use the WiFi Mouse app/server: http://wifimouse.necta.us/ First, install the WiFi Mouse app on you iPhone: https://itunes.apple.com/app/id591076411?mt=8 Second, install the WiFi Mouse server downloaded from http://wifimouse.necta.us/ If you are using Fedora Linux, you need to convert the .deb…
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SQL layers on NoSQL databases
What are the SQL layer solution over NoSQL databases such as key/value stores? Phoenix: A SQL layer on HBase: https://github.com/forcedotcom/phoenix They also show some performance results: https://github.com/forcedotcom/phoenix/wiki/Performance F1 – The Fault-Tolerant Distributed RDBMS Supporting Google’s Ad Business: http://research.google.com/pubs/pub38125.html With F1, we have built a novel hybrid system that combines the scalability, fault tolerance, transparent sharding,…
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How To Find Out When Photos in The iPhone Were Taken
How To Find Out When Photos in The iPhone Were Taken? The default viewer in iPhone seems do not show these information. The iPhone has no native mechanism to see the photo taken date information. However there is the information. You need a 3’rd party application to view the EXIF data (time taken, GPS coordinates,…
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How to add an existing user to an existing group?
How to add an existing user to an existing group in Linux? We can use usermod to change/add user group for users. # usermod -a -G group_name user_name -a, –append Add the user to the supplementary group(s). Use only with the -G option. -G, –groups GROUP1[,GROUP2,…[,GROUPN]]] A list of supplementary groups which the user is…
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Statically linking C and C++ programs
How to statically compile C and C++ projects? The compiled executable should lead no dynamical library during execution. I use gcc/g++ to compile the projects. Check this post: Statically Linking C and C++ Programs on Linux with gcc.
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New Mingle Forum Class
Hi , Thank you for your recommendation for removing the canonical link for the forum page only. However, I am am not able to find the following code in the wpf.class.php and was hoping you let us know where we can find this class so that we can modify it accordingly. (Does -1260 refer to…
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How to add social icons to Q2A?
How to add the social share icons to q2a as shown in this site? This site uses the Question2Answer Share plugin: https://github.com/NoahY/q2a-share After installing the plugin by downloading and copying the directory for the plugin to the qa-plugin directory, you can select the networks to share to in ‘Admin -> Plugins’. I see. Thanks!
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Q2A: making the main content div appear before the side panel
After checking the Question2Answer pages’ HTML code, I find that the main div comes after the side panel. How to revert the position of the main div and side panel div? Makes the main content come first in the HTML. You can change the displaying order by overwriting the body_content() function in the theme (that…
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Q2A: How to enable Sina Weibo and Tencent QQ account log in?
In Question2Answer, how to enable Sina Weibo and Tencent QQ account log in? Use the Social Plugin for Sina Weibo and Tencent QQ (in Chinese): http://q2achina.sinaapp.com/blog/archives/22/ The websites to apply for the app: Weibo: http://open.weibo.com/ QQ: http://connect.qq.com/
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WordPress: How to use Markdown for writing posts
I like the Markdown editor whick is widely used (e.g. This site) and very convenient to use. How to add a Markdown editor for WordPress? I tried some plugins and find they have their strengthens and disadvantages. Here are my requirements: Compatible with my existing posts. They should still display well. I can accept minimum…
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Single sign-in for social accounts for question2answer?
How to enable single sign-in for social accounts for question2answer? These servers are required: Google, Facebook, Twitter, OpenID. This site moved from Loginza to Question2Answer Open Login which works like a charm. I use the Loginza and it works very well. For Q2A, SLonoed wrote a nice plugin for loginza. How to use it: Download…
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How to activate or deactivate a Linux host with Gnome remotely?
I have a Fedora Linux server with Gnome 3. I want to lock / unlock the remote Gnome desktop remotely. How to activate or deactivate it remotely through SSH? Use gnome-screensaver-command. It is not specific to Gnome 3. Turn the screensaver on (blank the screen): $ gnome-screensaver-command -a If the screensaver is active then deactivate…
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How to change the audio track for .mkv files in mplayer?
How to change the audio track for .mkv files in mplayer? Key shortcut: # (dvd, mpeg, matroska, avi and libavformat only) cycle through the available audio tracks. tab (mpeg-ts and libavformat only) More: https://www.systutorials.com/b/linux/663/mostly-used-mplayer-keyboard-control/
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Chrome reports “Adobe Flash Player was blocked because it is out of date.”
On Linux (Fedora 17 x86-64), Chrome keeps reporting “Adobe Flash Player was blocked because it is out of date.” every time I browse a page that contains Flash. How to fix this? I did this and it turned to be working for me: Disable the libpepflashplayer in Chrome by run chrome://plugins/ in the URL bar….
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How to merge a commit from another branch to my current branch in git?
I have 2 branches: dev and master. I have commits in dev like this: c0–>c1–>c2–>c3–>c4 Commits in master like this: c0–>c5–>c6 c2 and c3 fix a bug. Now, I want to merge commit c2 and c3 that fix the bug to the master branch, but I do not want to merge all the commits (e.g….
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How to set up proxy over SSH on Windows?
This tutorial teaches how to set up SSH proxy on Linux. How to set up one proxy over SSH on Windows? A tutorial of using SSH tunnel as the proxy on Windows is introduced here: https://www.systutorials.com/tutorial/4696/software/proxy-using-ssh-tunnel-on-windows/