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What causes a TCP/IP reset (RST) flag to be sent?
...every possible perversion has been visited on TCP since its inception, and all sorts of people might be inserting RSTs in an attempt to block traffic. (Some 'national firewalls' work like this, for example.)
share
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Cannot set property 'innerHTML' of null
...tag are trying to access an element having id hello even before it has actually been rendered in the DOM. So obviously, JavaScript failed to see the element and hence you end up seeing the null reference error.
How can you make it work as before?
You want to show the "hi" message on the page a...
Check status of one port on remote host [closed]
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This is the easiest method if telnet is installed on the Windows device
– shonky linux user
Apr 29 '13 at 1:12
30
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Why is Linux called a monolithic kernel?
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A monolithic kernel is a kernel where all services (file system, VFS, device drivers, etc) as well as core functionality (scheduling, memory allocation, etc.) are a tight knit group sharing the same space. This directly opposes a microkernel.
A microkernel prefe...
Why are only final variables accessible in anonymous class?
...used in an anonymous inner class or lambda expression though.
It's basically due to the way Java manages closures.
When you create an instance of an anonymous inner class, any variables which are used within that class have their values copied in via the autogenerated constructor. This avoids th...
How can I check if a command exists in a shell script? [duplicate]
... script I would like to check if a certain command exists, and if not, install the executable. How would I check if this command exists?
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Excluding directories in os.walk
...ld a comprehension only for its side effects...
– 301_Moved_Permanently
Nov 5 '16 at 9:33
3
This ...
Git remote branch deleted, but still it appears in 'branch -a'
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git remote prune origin, as suggested in the other answer, will remove all such stale branches. That's probably what you'd want in most cases, but if you want to just remove that particular remote-tracking branch, you should do:
git branch -d -r origin/coolbranch
(The -r is easy to forget...)...
Storing money in a decimal column - what precision and scale?
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If you are looking for a one-size-fits-all, I'd suggest DECIMAL(19, 4) is a popular choice (a quick Google bears this out). I think this originates from the old VBA/Access/Jet Currency data type, being the first fixed point decimal type in the language; Decimal on...
Can I split an already split hunk with git?
... discovered git's patch option to the add command, and I must say it really is a fantastic feature.
I also discovered that a large hunk could be split into smaller hunks by hitting the s key, which adds to the precision of the commit.
But what if I want even more precision, if the split hunk i...