Ive been constantly getting the same error,like
"HTTP 403.9 - Access Forbidden: Too many users are connected Internet Information Services Technical Information".
I went through this site and found this command ->
"C:\Inetpub\AdminScripts\adsutil set w3svc/MaxConnections 40" to set maximum connections.Even after running this command I still have the same error.
Im using IIS V.5.1,Oracle 10g,IE 9.0.
Is there a better way to fix???
Use a bigger number.
If you've got enough money to pay for licencing MS IIS and Oracle then you should be able to afford hardware to support more than 40 concurrent requests (not got your setup / code here to test - I'd expect that the cheapest PC I could buy today would support over 500 concurrent connections running Linux,Apache and MySQL/Postgress).
Related
What I would like
visting efkhunt.com or www.efkhunt.com to be forwarded to my heroku blog at https://efkhunt.herokuapp.com/
I currently have the free version, but happy to upgrade to hobby if it helps avoid SSL errors etc.
What I've experienced
Currently : efkhunt.com redirs to http://classical-orangutan-xxxxxxxxxxxxxx.herokudns.com/
www.efkhunt.com gives :
This site can’t provide a secure connection www.efkhunt.com sent an invalid response.
Try running Windows Network Diagnostics.
ERR_SSL_PROTOCOL_ERROR
What I've tried
I've tried a number of different tutorials, some of which seem contradictory, or perhaps more likely I've not understood them properly. The GD settings I have currently are :
Type Name Value TTL
A # 184.168.131.xxx 600 seconds
CNAME www thermal-centipede-xxxxx.herokudns.com 1 Hour
CNAME _domainconnect _domainconnect.gd.domaincontrol.com 1 Hour
NS # ns47.domaincontrol.com 1
NS # ns48.domaincontrol.com 1
SOA # Primary nameserver: ns47.domaincontrol.com. 1
I've been doing this over a number of days so I don't think I should have to wait for any further propagation.
Cheers!
For anyone struggling - I think the browser cache was misleading, there was actually an SSL error which was resolved by turning on automated certificate management, which required to upgrade to a hobby dyno.
https://devcenter.heroku.com/articles/automated-certificate-management
I am running a performance test on a site using Jmeter. Using a load of up to 100 simultaneous users(Threads) the tests pass perfectly, trying to raise this load to 300 users (Threads) I get the following error:
Non HTTP response code: java.net.SocketException / Non HTTP response message: Connection reset
The error occurs in only 0.68% of requests (out of 2412 requests made by 300 users(Threads) only 2 requests generated this error)
I thought it was the maximum number of connections allowed on my server, I went to my application's webconfig and entered the following information: "Min Pool Size = 5; Max Pool Size = 500;". but still not solve the problem.
Does anyone know what I can do to not generate these errors?
Most probably it indicates a problem with your application, try checking:
application logs
application/web server logs and configuration
underlying operating system logs and networking configuration. also pay attention to number of open ports/sockets/handles (can be checked using either built-in OS monitoring tools or JMeter PerfMon Plugin)
If you're absolutely sure that there is nothing wrong with your test script and application and JMeter is configured to behave exactly like a real browser you can follow instructions from JMeterSocketClosed wiki page
More information: The Mysteries of Connection Close
I have a high performance softlayer server. I am only running a (php-based. It's not an IRC server) chat room on this server. It works all fine. On average server response (for chat room) is 100MS with 100+ concurrent users. Some days ago a user threat to ddos our server. Now the server is so slow. On average ping time is 1500-2000MS with just 50-60 users. There is no high resource usage or bandwidth usage. I did following things to protect my server:
1 - DDOS protection (softlayer providers it)
2 - Install mod qos and evassive for appache
3 - Disabled ping of death and Syn packets
I performed following analysis:
1 - Analyzed apache logs. There isn't any frequent request from same IP or CLRF packets.
2 - Not many UDP packets
3 - Checked connections per IP and they are all normal.
However, nothing is working. That user threats and kills our time whenever he says/wants. Is there any other thing I should look into to protect my server? What kind of attack he could make to do this?
My guess is going to be they are exhausting your apache workers (usually a default of 150), you might want to check to see how many apache threads are currently running, and if its ~150 that might be why you have slow response times.
Some good reading on apache performance tuning.
http://httpd.apache.org/docs/2.2/misc/perf-tuning.html
http://www.monitis.com/blog/2011/07/05/25-apache-performance-tuning-tips/
https://www.devside.net/articles/apache-performance-tuning
The output from the following commands might also be useful in figuring out whats going on.
See whats running
ps auxf
See what apache is doing by turning on server-status (http://httpd.apache.org/docs/2.2/mod/mod_status.html)
apachectl fullstatus
See whats going on with network connections
netstat -npl
Anyway, I hope that helps point you in the right direction.
I am debugging a very odd problem I noticed when testing in my own network. (It doesn't appear to happen on other servers outside my network) where random http requests fail.
I have tried it on two apache servers on my network, and it happens about 1 out of every 100 requests with 2 different apache servers.
I thought it was front-end related, but it appears something to do with my internal network OR configuration. I installed Charles proxy on my machine and used my phone to make the requests in the appellation. (Ajax)
The ajax/http request is being made but it is never making it into my access logs and I am getting the error "Remote Server closed the connection before sending the response header"
How can I debug this further?
NOTE: Also worth noting I can only reproduce problem on mobile iPhone + iPad devices when connecting to the server on the machine. (EVEN when using http proxy...which is very odd)
EDIT:
I did a wireshark capture for port 80 from the server computer and accessing it from iPhone. I am having a hard time interpreting it.
Here is the link to the capture files:
CAPTURE 1 (iOS 8 iPhone):
https://www.dropbox.com/s/1ipruv3wlmgng5o/http%20capture%20bad.pcapng?dl=0
NOTE: The error happens after the LAST post to sales/add_payment
CAPTURE 2 (iOS 8 iPhone):
https://www.dropbox.com/s/4zu3654uh9l6230/http%20capture%20bad%202.pcapng?dl=0
NOTE: The error happens after the LAST post to sales/complete
CAPTURE 3 (Android 4.4):
https://www.dropbox.com/s/8xtwkbewce02psw/http%20capture%20android%201.pcapng?dl=0
FOLLOW UP:
If it is indeed faulty network equipment, how do I determine what is bad? (device, router, modem?)
stupid problem. I get those from a client connecting to a server. Sadly, the setup is complicated making debugging complex - and we run out of options.
The environment:
*Client/Server system, both running on the same machine. The client is actually a service doing some database manipulation at specific times.
* The cnonection comes from C# going through OleDb to an EasySoft JDBC driver to a custom written JDBC server that then hosts logic in C++. Yeah, compelx - but the third party supplier decided to expose the extension mechanisms for their server through a JDBC interface. Not a lot can be done here ;)
The Symptom:
At (ir)regular intervals we get a "Address already in use: connect" told from the JDBC driver. They seem to come from one particular service we run.
Now, I did read all the stuff about port exhaustion. This is why we have a little tool running now that counts ports and their states every minute. Last time this happened, we had an astonishing 370 ports in use, with the count rising to about 900 AFTER the error. We aleady patched the registry (it is a windows machine) to allow more than the 5000 client ports standard, but even then, we are far far from that limit to start with.
Which is why I am asking here. Ayneone an ide what ELSE could cause this?
It is a Windows 2003 Server machine, 64 bit. The only other thing I can see that may cause it (but this functionality is supposedly disabled) is Symantec Endpoint Protection that is installed on the server - and being capable of actinc as a firewall, it could possibly intercept network traffic. I dont want to open a can of worms by pointing to Symantec prematurely (if pointing to Symantec can ever be seen as such). So, anyone an idea what else may be the cause?
Thanks
"Address already in use", aka WSAEADDRINUSE (10048), means that when the client socket prepared to connect to the server socket, it first tried to bind itself to a specific local IP/Port pair that was already in use by another socket, either an active one or one that has been closed but is still in the FD_WAIT state. This has nothing to do with the number of ports that are available.
I'm having the same issue on a Windows 2000 Server with a .Net application connecting to a SQL Server 7.0. There's like 10 servers with the same configuration and only one is showing this error several times a day. With a small test program I'm able to reproduce the error by just establishing a TCP connection on the SQL Server listening port. Running CurrPorts (http://www.nirsoft.net/utils/cports.html) shows there's still plenty of available ports in range 1024-5000.
I'm out of ideas and would like to know if you've found a solution since you've posted your question.
Edit : I finally found the solution : a worm was present on the server (WORM_DOWNAD.A) and exhausted local ports without being noticed.