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java.net.UnknownHostException: Invalid hostname for server: local
...es this environment variable ($HOSTNAME) when it connects to the server.
[root@xyz ~]# echo $HOSTNAME
xyz
[root@xyz ~]# ping $HOSTNAME
ping: unknown host xyz
[root@xyz ~]# hostname -f
hostname: Unknown host
There are dozens of things that can cause this. Please comment if you discover a new re...
Spring Boot application as a Service
...ou might want to add ordering statements to the [Unit] section, e.g. After=mysql.service, Before=apache2.service.
– rustyx
Jan 25 at 9:41
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...
Notification click: activity already open
...ome screen, then every time you launch the application will start with the root activity, destroying any activities that were previously displayed on top. This certainly is not an expected behavior for a user putting the app in background while in a different activity and reopening it.
...
How to rsync only a specific list of files?
... command line instead:
# rsync -avP -e ssh `cat deploy/rsync_include.txt` root@0.0.0.0:/var/www/
This is assuming, however, that your list isn't so long that the command line length will be a problem and that the rsync_include.txt file contains just real paths (i.e. no comments, and no regexps).
...
Auto-loading lib files in Rails 4
...problem:
in config/application.rb:
config.autoload_paths << Rails.root.join('lib')
and keep the right naming convention in lib.
in lib/foo.rb:
class Foo
end
in lib/foo/bar.rb:
class Foo::Bar
end
if you really wanna do some monkey patches in file like lib/extensions.rb, you may manua...
How to redirect to previous page in Ruby On Rails?
...structions in Rails Guides, you can use:
redirect_back(fallback_location: root_path)
The 'back' location is pulled from the HTTP_REFERER header which is not guaranteed to be set by the browser. Thats why you should provide a 'fallback_location'.
...
GitHub relative link in Markdown file
...ld handle relative link just fine. Problem occurs when linking from .md in root of repo.
– rynop
Oct 5 '11 at 18:24
...
HorizontalAlignment=Stretch, MaxWidth, and Left aligned at the same time?
...estorType={x:Type ScrollContentPresenter}}}"
Make sure your DataTemplate root has Margin="0" (you can use some panel as the root and set the Margin to the children of that root)
share
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improve th...
iPhone App Minus App Store?
... Email address field.
Click Continue until complete.
You should see "This root certificate is not trusted". This is expected.
Set the iPhone SDK to allow the self-signed certificate to be used:
sudo /usr/bin/sed -i .bak 's/XCiPhoneOSCodeSignContext/XCCodeSignContext/' /Developer/Platforms/iPhon...
Brew update failed: untracked working tree files would be overwritten by merge
... This is how permissions on my brew prefix look like here: drwxrwxr-x 16 root admin 646 Dec 27 20:30 /usr/local/
– favoretti
Jan 1 '13 at 19:37
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