DNS issue with Azure - gives error when using DNS - url

I am facing a strange issue with azure -
After uploading a new version of my app about an hour back, the public facing url is throwing a runtime error. However the app works fine when I access it through the azure internal domain -- app.cloudapp.net.
Before upgrading it was working fine.
I have rechecked the cname records with my hosting provider (bluehost) but I cannot find any problem. Even otherwise, the problem seems like an ASP.net issue (due to the typical error page rendered) but something that just does not make sense.
Anyone has any ideas as to what I can do?
EDIT: This started working just as mysteriously as it had stopped - I have no clue whether it is due to DNS propagation delay (although in that case it should not have thrown an error page like described above). However if someone knows why this might happen, I will still appreciate it.

There is a DNS service available for Windows Azure called "DNS Azure" that changes your cloudapp's IP address automatically. See dnsazure.com
This solutions helps to avoid the CNAME record because the A record is kept up-to-date.

Related

404 anomaly on one computer only

This is weird. On my personal computer at home when I type in my website, I get a 404 error.
No other computer gets the 404 error that I can see from several work computers to relatives, wife's laptop and even my phone using the same WIFI connection.
This only happened after switching my preferred domain under preferred hosting settings from www.xxx.com to xxx.com - perhaps coincidence, perhaps not.
I did this as links in Twitter and Facebook where directing to xxx.com and were giving me 404 errors. Note that the day I made the change the 404 errors went away and I was linking to my website. Then a day later, not working to access my website.
I would suspect nameservers etc but my computer is the only one seemingly exhibiting the problem.
I cleared the browser cache for Chrome and Edge still nothing. I downloaded FireFox and installed fresh and get the same 404 error.
I flushed the dns with ipconfig in administrator mode and it has been over 24 hours since the problem first occurred.
I can get to my website using the IP address fine. I can't using the URL, only on this computer. I even called GoDaddy to make sure it was only my machine and they say they see no problem.
The HOSTS file is virtually empty. and I can use the website with Visual Studio no problem.
Any thoughts? I am stumped on this anomaly.
Thanks again everyone! Your feedback helped me solve the problem. This project was originally started in PHP and moved to from Apache server to ASP.NET. My hosts file still had remnants to xxx.com being local, and not searching outside to the world. Removing 127.0.0.1 xxx.com solved the problem.
THANK YOU!

SonarQube Service Starts, Runs and then Stops?

I have a Windows 2012 R2 server and I managed to install the SonarQube 5.4 server as a Windows Service. I also set up a user so the service can actually start without the infamous "It started then stopped" error a lot of people seem to get. Before installing the server as a windows service, I checked that it worked using StartSonar.bat and it did work just fine, so I was confident when I made it into a service.
But when I try to access http://localhost:9000 there is nothing there, and it appears that shortly after starting the service it stops without any message at all. I can't tell if this is because I try to access the site (which gives me ERR_EMPTY_RESPONSEin Google Chrome) or if it just closes down after a short while.
Anyone got any insight?
I'm a beginner. I came across the same issue and fixed it.
Ensure that the database is running.
My log file (located at sonarqube_home_dir/logs/sonar.log) included the following statement.
Caused by: org.h2.jdbc.JdbcSQLException: Wrong user name or password [28000-176]
Since I'm using the default database, I commented below lines
#sonar.jdbc.username=***
#sonar.jdbc.password=***
at sonarqube_home_dir/conf/sonar.properties.
This must happen due to many reasons like connection problems, permission problems so First, you have to see the logs. /sonarqube-7.6/logs$ tailf sonar.log. then you can find the reason. Once I had the same problem so I did like that. my error is something Directory does not exist: lib/jdbc/mysql
org.sonar.process.MessageException: Directory does not exist: lib/jdbc/mysql reason is I uninstall MySQL and remove all folders name contains "MySQL".
just check whether port 9001 already in used, stop it if already in used.

404 error when accessing Struts2 Web application

I had created a web application and committed the code in CVS. The web application is working good in my machine. When i tried to import the same code in another machine i am getting 404 error. I tried importing the code via ftp from my machine to another machine and also checking out the code from CVS. But still i get 404 error.
I also noticed that there is no error that had been captured in the console or in the application's log. Could someone help me in how to proceed further in identifying the issue. Please let me know if i need to post any further details regarding the issue.
I notice this issue to be in the Websphere server. I tried hosting the application in different machine and found that in few machine the same code is working good and some it is not. Is there any way to compare the server configuration?
In the WAS server 6.1 i added the below value in the web container and the application worked fine.
Steps:
In the server admin console, click on Application Server--> --> Web container--> custom properties.
Add the name as com.ibm.ws.webcontainer.invokefilterscompatibility and value as true.
Thank you all for the response.

Grails withForm and AWS interactions

The following issue is using the following:
AWS
PostgreSQL
Grails 2.3.3
Redis
On our account creation page, we are having some REALLY obscure functionality with the Grails withForm{}.invalidToken{} closure.
Upon hitting the page for the first time, everything works fine. You can post back to the server fine as long as you do not leave this page.
Upon leaving this page, either through navigation links or logging off, returning to the page (Again through navigation links or logging on and heading there), we can no longer submit, it hits the invalidToken closure every time.
I know AWS is involved as we took the project and deployed it to local machines both with IntelliJ and Tomcat by itself and both work fine. This issue only occurs upon deploying the WAR to AWS. (This occurs both with local builds and automated builds. They work locally but not on AWS)
We have spent almost a week on this issue trying to figure out why this is occuring, and all we have to show for it is we know AWS is somehow involved, but that's as far as we have gotten.
Does anyone have any insight into what would be causing our session to act like this?
After a LOT of searching about this issue, me and my team finally figured it out. Taken directly from our JIRA:
"This issue is caused by the implementation of tomcat-redis-session-manager used on AWS. As per their documentation (https://github.com/jcoleman/tomcat-redis-session-manager#session-change-tracking), there are "unintended consequence of hiding writes if you implicitly change a key in the session or if the object's equality does not change even though the key is updated." Specifically, the "useToken" implementation is Grails 2.3.8 is: "String generateToken(String url) { final UUID uuid = UUID.randomUUID() getTokens(url).add(uuid) return uuid }" The combination of these native implementations are there for incompatible.
The tomcat-redis-session-manager does support a manual dirty tracking mode by setting: RedisSession.setManualDirtyTrackingSupportEnabled(true); but this would require a forked build of SynchronizerTokensHolder in grails-core."

Pow doesn't work - unable to find [myapp].dev

Pow used to work for me a few months ago, but now it's not working for my new app, or for the ones that worked before.
I went into ~/.pow and created a symlink, but when I type MYAPPNAME.dev/ in my browser, it redirects to a cox(my internet provider) page saying "Sorry, the website subscriptions.dev cannot be found"
I read through all the docs in the pow page, and tried installing powify as well, but nothings working.
Is there something I may have done in my console (such as changing PATH or things) that may cause this to not work?
I tried restarting my computer as well, but still nothing..
=============================================================
Edit: Actually I just came to my office and it started working. Is it possible that my internet provider at home could be blocking/interfering with pow? I would assume that it's irrelevant since I thought pow was essentially a local host.
DNS hijacking from your ISP. Try setting your DNS server to 8.8.8.8 (google's DNS) and see if the problem persists.

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