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Using openssl to get the certificate from a server

...osts on a single IP address) you will need to send the correct hostname in order to get the right certificate. openssl s_client -showcerts -servername www.example.com -connect www.example.com:443 </dev/null Without SNI If the remote server is not using SNI, then you can skip -servername param...
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What is your preferred style for naming variables in R? [closed]

...e full paper is here: http://journal.r-project.org/archive/2012-2/RJournal_2012-2_Baaaath.pdf share | improve this answer | follow | ...
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Best way to merge two maps and sum the values of same key?

...leads to arguably the shortest/cleanest solution: scala> import scalaz._ import scalaz._ scala> import Scalaz._ import Scalaz._ scala> val map1 = Map(1 -> 9 , 2 -> 20) map1: scala.collection.immutable.Map[Int,Int] = Map(1 -> 9, 2 -> 20) scala> val map2 = Map(1 -> 100, ...
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Set value to NULL in MySQL

... can be inserted/updated without quotes: INSERT INTO user (name, something_optional) VALUES ("Joe", NULL); UPDATE user SET something_optional = NULL; share | improve this answer | ...
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Enter triggers button click

...is a <input type="submit"> . The buttons appear on the page in that order. If I'm in a text field anywhere in the form and press <Enter> , the button element's click event is triggered. I assume that's because the button element sits first. ...
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NSUserDefaults not cleared after app uninstall on simulator

...apabilities), then you will have to remove all the apps from the device in order for the user defaults to be cleared. Since the user defaults are shared, even if one of the app is on the device then it will not be deleted, as that app will be using the userdefaults. – Ankit Sr...
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Clear back stack using fragments

I ported my Android app to honeycomb and I did a big refactor in order to use fragments. In my previous version, when I pressed the Home button I used to do a ACTIVITY_CLEAR_TOP in order to reset the back stack. ...
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How do you send a HEAD HTTP request in Python 2?

...rt urllib2 >>> class HeadRequest(urllib2.Request): ... def get_method(self): ... return "HEAD" ... >>> response = urllib2.urlopen(HeadRequest("http://google.com/index.html")) Headers are available via response.info() as before. Interestingly, you can find the URL th...
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SQL- Ignore case while searching for a string

... Use something like this - SELECT DISTINCT COL_NAME FROM myTable WHERE UPPER(COL_NAME) LIKE UPPER('%PriceOrder%') or SELECT DISTINCT COL_NAME FROM myTable WHERE LOWER(COL_NAME) LIKE LOWER('%PriceOrder%') ...
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Connecting overloaded signals and slots in Qt 5

... "above" what? Don't assume that answers are presented to everyone in the order you're currently seeing them! – Toby Speight Sep 19 '17 at 16:09 1 ...