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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...tup:
Ubuntu 14.04 LTS
MySQL v5.5.37
Solution
Open up the file under 'etc/mysql/my.cnf'
Check for:
port (by default this is 'port = 3306')
bind-address (by default this is 'bind-address = 127.0.0.1'; if you want to open to all then just comment out this line. For my example, I'll say the act...
Vagrant error: NFS is reporting that your exports file is invalid
... Downgrading is not required. You just need to run sudo touch /etc/exports. See colinhoernig's answer. Also, I just updated my vagrant install to v1.4.3 and VirtualBox to v4.3.8 and that seemed to solve my problem.
– donut
Mar 2 '14 at 18:02
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How do you write a migration to rename an ActiveRecord model and its table in Rails?
... add_index :old_table_name, :column_name
end
end
And rename your files etc, manually as other answers here describe.
See: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
Make sure you can rollback and roll forward after you write this migration. It can get tricky if you get some...
What is the difference between HAVING and WHERE in SQL?
... a minority queries would need to be rewritten using a derived table, CTE, etc but they would arguably be easier to understand and maintain as a result. Maybe vendors' optimizer code would need to be rewritten to account for this, again an opportunity for improvement within the industry.
Now consid...
More elegant “ps aux | grep -v grep”
...command, e.g.
ps u -C gnome-terminal
(or search through /proc with find etc.)
share
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How to exclude property from Json Serialization
...s to the class, or if you want to decide what to serialize during runtime, etc. etc. here's how you do it in Newtonsoft.Json
//short helper class to ignore some properties from serialization
public class IgnorePropertiesResolver : DefaultContractResolver
{
private readonly HashSet<string> ...
Equivalent of *Nix 'which' command in PowerShell?
....ps1. Using this answer, however, gives me the whole path (C:\Users\blah\etc\scripts\okta.ps1). So +1 from me.
– s-k-y-e---c-a-p-t-a-i-n
May 30 '19 at 18:40
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IPC performance: Named Pipe vs Socket
...(processAin, processAout, processBin, processBout, processCin, processCout etc)
Or you can go hybrid as always :)
Named pipes are quite easy to implement.
E.g. I implemented a project in C with named pipes, thanks to standart file input-output based communication (fopen, fprintf, fscanf ...) it ...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
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or just add it to your /etc/paths file architectryan.com/2012/10/02/…
– Phill Pafford
Jan 14 '14 at 13:16
add a comment
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Find and restore a deleted file in a Git repository
...he specified commit, so ~1 is the commit before, ~2 is two commits before, etc
– Nils Luxton
Sep 10 '12 at 15:07
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