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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
... IN A
The RFC makes perfect sense as the nameserver wouldn't know whether it needs to follow the CNAME or answer with the actual record the CNAME overlaps with. bar.com is a zone therefore it implicitly has an SOA record for the bar.com name. You can't have both a SOA record and a CNAME...
Jenkins / Hudson environment variables
...
I kept running into this problem, but now I just add:
source /etc/profile
As the first step in my build process. Now all my subsequent rules are loaded for Jenkins to operate smoothly.
...
How to round a number to significant figures in Python
...
I have created a package that does this now and is probably easier and more robust than this one. Post Link, Repo Link. Hope this helps!
– William Rusnack
May 23 '17 at 12:09
...
Understanding dict.copy() - shallow or deep?
...mple:
original = dict(a=1, b=2, c=dict(d=4, e=5))
new = original.copy()
Now let's change a value in the 'shallow' (first) level:
new['a'] = 10
# new = {'a': 10, 'b': 2, 'c': {'d': 4, 'e': 5}}
# original = {'a': 1, 'b': 2, 'c': {'d': 4, 'e': 5}}
# no change in original, since ['a'] is an immutabl...
Casting vs using the 'as' keyword in the CLR
...d pattern matching, which has largely replaced the as operator, as you can now write:
if (randomObject is TargetType tt)
{
// Use tt here
}
Note that tt is still in scope after this, but not definitely assigned. (It is definitely assigned within the if body.) That's slightly annoying in some ...
Objective-C Static Class Level variables
...the app is running, but you will save memory if you release it, so if you know you don't need it anymore, then you should release it.
– ma11hew28
Jun 12 '11 at 14:01
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Set Page title using UI-Router
...nother way of doing this by combining most of the answers here already. I know this is already answered but I wanted to show the way I dynamically change page titles with ui-router.
If you take a look at ui-router sample app, they use the angular .run block to add the $state variable to $rootScope....
In c# what does 'where T : class' mean?
...s literally means that T has to be a class. It can be any reference type. Now whenever any code calls your DoThis<T>() method it must provide a class to replace T. For example if I were to call your DoThis<T>() method then I will have to call it like following:
DoThis<MyClass>();...
How do you Encrypt and Decrypt a PHP String?
... library written by and reviewed by cryptography experts.
Update: PHP 7.2 now provides libsodium! For best security, update your systems to use PHP 7.2 or higher and only follow the libsodium advice in this answer.
Use libsodium if you have PECL access (or sodium_compat if you want libsodium witho...
How to hide element using Twitter Bootstrap and show it using jQuery?
...d like so :
<div id="header-mask" class="hideMe"></div>
and now jQuery hiding works
$('#header-mask').show();
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