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I have a Linux box I use for a firewall with iptables, and I need to put my mail server on the right ip address for proper reverse DNS Lookup.
So I can take inbound packets and NAT them to the mail server, but I need to take outbound packets from the mail server, and send them on a different IP address. The IPTables sends everything out on the same IP, which is 1, but I need 5.
I thinking maybe I could add another gateway, using route, below is my main route, I'd like to add 192.168.3.5 to use a gateway of 69.199.126.198,
Am I on the right track here?, I could use some help on this
/sbin/route add default gw 69.199.126.193 dev eth0
/sbin/route add -net 192.168.3.0 netmask 255.255.255.0 gw 192.168.3.1 dev eth1
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I had 2 addresses bound to the mail server adapter, and was only SNAT 1 of them, so I added a SNAT to the other address, and now the mail server responds on the correct ip address for reverse dns and resolves correctly.
So I didn't need a 2nd gateway address, or need to add any additional routing, turned out to be pretty easy. Only took me years to figure out.
modified 9-Oct-12 23:36pm.
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try to copy the first ip to your pc and try again should be solved
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I want to take all new smtp packets generated inside the network, and send them out on a different ip address, and not the gateway address, so the ipaddress reverses back to the correct ptr record, indicating it's a mail a server that belongs to my domain.
Right now, the packets go out on the gateway, with a different reverse ptr record.
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Hi,
I am facing a strange issue in a website, where the website goes down every day and when i recycle the website it comes back working and goes down the next day.
the website says connecting to the page and never connects when its down.
i have tried creating a separate Application pool and tried as well bit nothing seems to be working.
Its hosted in a NLBS mode where the a memory threshold algorithm used.
I have tried all the steps possible but nothings working,please help.
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I am running Nginx with MySQL. The php5-fpm log reports the error fork() failed, how can I fix this?
If some one can help in understanding the configuration directives of Nginx, php5-fpm and MySQL, it would be great?
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Hi I have a problem in subnetting, if anyone has an idea could help, the problem is: If I have 6 hosts and in a class A address, how do I get the number of subnets and the custom subnet mask if an given a network number 126.0.0.0, thank you.
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I used the Microsoft Web Platform Installer to install mojoPortal into a website I created in IIS8 on Windows Server 2012, and whenever I try to go to one of the pages in the site, I get a 404 Not Found error. IIS has done this for several testing sites I have created, and it is getting annoying. Any suggestions on what could be going awry?
EDIT: I was able to get an error stating something about wildcard script maps. I will use that to look into other possibilities.
EDIT2: IIS seems to think that the .aspx file extension has no associated handler, but a handler for it exists in the list. I will look into this further. It might be a missing role/feature.
EDIT3: It turns out IIS wasn't redirecting correctly. I still need to figure out what went wrong there.
I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
Stephen Hawking
modified 25-Sep-12 13:00pm.
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I have a windows server 2008 with IIS7 and hosted a website. When 100 user hitting the website simultaneously it throws 500 error...
There is no problem when less than 50 users hitting the webpage...
What type of configuration I must do to resolve this problem...?
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There is probably a log file somewhere. You should find it and see what the real error is.
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I WANT TO BUILD A WORKING,SECURE,RELIABLE,AND EFFICIENT WIRELESS SYSTEMS FOR SENSOR NETWORKS AND I WOULD LIKE TO KNOW THE HARDWARE AND SOFTWARE COMPONENTS THAT IM GONA USE TO DO IT.PLEASE HELP ME I AM WAITING FOR ANY GOOD REPLY THAT WILL HELP ME
KIND REGARDS
AL ETEME CHE
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DON'T SHOUT UNLESS YOU WANT TO BE SMACKED
Your question is rather broad; this way you'll get the answer to research the sensor-api and Wifi. Can you explain a bit more on what you need/try to do?
Bastard Programmer from Hell 
if you can't read my code, try converting it here[^]
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Need more info... what kind of sensors? how do you intend to communicate with your sensors? how secure does your network have to be (commercially secure or military grade)? does your network have to be something already commercially available? does your network have to have a certain topology?
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i want the cheapest sensors that are available on the market,i want them to communicate in a centralized way and i also want my network to be commercially secure and even if something that is similar to a wireless network that is already available but not exactly the same i would love to have a ring or star topology for my network.
i am waiting for your reply as i am in need of help, thank you for your time
kind regards
LUCIEN
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You're still not saying what kind of sensors... What are you trying to detect or measure with them? 
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simply buy a new acces point and you have a modern network
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Don't shout please.
Apart of that... Which kind of sensors are you interested in? and what do this question has to do with the "Hosting and servers" topic?
Give us more descriptions, "the cheapest in the market" is not good enough...
i.e. I can use an inductive sensor to detect metal proximity, I can use a ultra-sound sensor to detect physical bodies, I can use a laser sensor to detect distances, I can use an optical sensor to detect pgysical bodies, I can use RFID chips, and even artificial vision... All of them have different prices but event the most expensive one can be the cheapest one if the application requires it...
Summarizing, read the posting guidelines, follow them, give us as much information as possible and then probably someone will be able to help you.
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i did file upload and download web service in asmx page.here download is correctly working but if i upload a file throwing the access path is denied when i host in iis7 sever but in local system working correctly .how to fix this error
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Sasikumar.mohan wrote: access path is denied
The user account on which the IIS7 is running needs write access to the folder where you want to store the uploaded file.
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you need to give write access in directory
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When you upload, the ASMX should be writing the uploaded file to some path. Did you check the permissions on that path?
Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips
The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep!
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want to start my own technical blog(with my own content).
Is wordpress better or blogger?
I posted around3-4 posts initially as free blog at blogger, but i read somewhere that it will be difficult to convert it as own domain(paid) in future.
I am planning to post around 30-40 posts after this(almost completed with tha) and want to get my own domain name(paid) from wordpress or blogger?
Also want to earn from my blog, so want to start correctly.
Any suggestions?
Plz tell me according to page view, cost, future scope as earnings etc...
plz
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Thanks for the information.
I've posted the question there..
<a href="http://www.codeproject.com/Lounge.aspx?msg=4291620#xx4291620xx">http://www.codeproject.com/Lounge.aspx?msg=4291620#xx4291620xx</a>[<a href="http://www.codeproject.com/Lounge.aspx?msg=4291620#xx4291620xx" target="_blank" title="New Window">^</a>]
Please reply teher regarding my query that will it will be better to create my own website instead of that...plz tell me according to above criteria.
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