technical discussion meeda interest unna vallu randi..Comp Sci related

[Jambhalheart]

sarle technical thadu kabbati chinna doubt...


generally, when we access any site, its has to go thru many middle servers, now when we use proxy server, is it possible for the destination site to know our ip address ??? If no, then is it possible for the proxy server to know or display our ip address...



evaraina ee doubt clear cheyandri.....

[Jambhalheart]

second doubt....


wat is difference between web server and application server ??

( I searched this topic in google , but couldn't get satisfying answer)


naku telisinatha varaku, web server serves pages to browser, where as application server serves business logic to clients. Is it same as web services or wcf(something like that ??)




can someone clear this as well... I have even more in depth technical doubts...before that plsss clear these doubts. thanx.

[mba]

[quote author=Jambhalheart link=topic=95623.msg1021901#msg1021901 date=1283645080]
sarle technical thadu kabbati chinna doubt...


generally, when we access any site, its has to go thru many middle servers, now when we use proxy server, is it possible for the destination site to know our ip address ??? If no, then is it possible for the proxy server to know or display our ip address...



evaraina ee doubt clear cheyandri.....
[/quote]
is it possible for the proxy server to know or display our ip address?
ee question ki answer YES..

deeni mundhu question ki kuda YES anukuntunna not sure..

[Jambhalheart]

[quote author=mba link=topic=95623.msg1021927#msg1021927 date=1283646255]
is it possible for the proxy server to know or display our ip address?
ee question ki answer YES..

deeni mundhu question ki kuda YES anukuntunna not sure..
[/quote]

mari, manam news lo chusthu vuntam... evado child porn download chesi doripoyadu lantivi....

kontha mandi india lo proxy servers use chesina dorikaru ani...for example, if u accessed orkut thru proxy server, can orkut trace out ur ip address by contacting proxy server and moreover,this process has many middle servers , is it possible to still trace out u by police ????

[Jambhalheart]

and moreover, some proxy servers like pagemod,vtunnel constantly change ip addressess... so how is it possible...

[Jambhalheart]

emi ledu paiki tesuku vaddam ani........


heros meda, politics meda disco cheyadam valla time waste,energy waste tappa emi vundadhu...

atleast, technical knowledge vunna vallu technical stuff meda disco sesthe knowledge ayina vastundi....

[krldr871]

1st question..proxies gurinchi aithe..
Proxies are meant for shielding computers or making sure that the destination does not know the originating ip address..in general proxies vaadedi, either block ayina services ni access cheyadaniki..like for example social networking sites youtube etc..or use as a shield..local lan lo systems internet connect avvadaniki proxy use cheyaychu..and many more uses..i dont think it is possible for the destination to know the ip unless the service is bound by the ip address..
2ns question lo..yes the proxy server definitely knows ur ip address..so it can ofcourse display it or pass it on to some third party..its not really advisable to use proxy servers that u dont know whether to trust or not..ill explain abt tht in a minute..

[bhrami]

[quote author=Leader871 link=topic=95623.msg1025121#msg1025121 date=1283790200]
1st question..proxies gurinchi aithe..
Proxies are meant for shielding computers or making sure that the destination does not know the originating ip address..in general proxies vaadedi, either block ayina services ni access cheyadaniki..like for example social networking sites youtube etc..or use as a shield..local lan lo systems internet connect avvadaniki proxy use cheyaychu..and many more uses..i dont think it is possible for the destination to know the ip unless the service is bound by the ip address..
2ns question lo..yes the proxy server definitely knows ur ip address..so it can ofcourse display it or pass it on to some third party..its not really advisable to use proxy servers that u dont know whether to trust or not..ill explain abt tht in a minute..
[/quote]
sHa_clap4 sHa_clap4 sHa_clap4

[Jambhalheart]

[quote author=Leader871 link=topic=95623.msg1025121#msg1025121 date=1283790200]
1st question..proxies gurinchi aithe..
Proxies are meant for shielding computers or making sure that the destination does not know the originating ip address..in general proxies vaadedi, either block ayina services ni access cheyadaniki..like for example social networking sites youtube etc..or use as a shield..local lan lo systems internet connect avvadaniki proxy use cheyaychu..and many more uses..i dont think it is possible for the destination to know the ip unless the service is bound by the ip address..
2ns question lo..yes the proxy server definitely knows ur ip address..so it can ofcourse display it or pass it on to some third party..its not really advisable to use proxy servers that u dont know whether to trust or not..ill explain abt tht in a minute..
[/quote]


really good buddy, thanx for reply.

generally, proxy servers r not preferred for banking or some specific applications..


but, how is it possible for proxy servers to change ip address quite often ???

ante, proxy server tho DB lo post vesthe,, okkoka post, okkoka ip address ni chupisthondi...

edi chinna doubt, it may change middle servers, but how its possible for sometimes like vtunnel,kproxy etc., sites to change ip address quite often ?????

[mba]

[quote author=Leader871 link=topic=95623.msg1025121#msg1025121 date=1283790200]
1st question..proxies gurinchi aithe..
Proxies are meant for shielding computers or making sure that the destination does not know the originating ip address..in general proxies vaadedi, either block ayina services ni access cheyadaniki..like for example social networking sites youtube etc..or use as a shield..local lan lo systems internet connect avvadaniki proxy use cheyaychu..and many more uses..i dont think it is possible for the destination to know the ip unless the service is bound by the ip address..
2ns question lo..yes the proxy server definitely knows ur ip address..so it can ofcourse display it or pass it on to some third party..its not really advisable to use proxy servers that u dont know whether to trust or not..ill explain abt tht in a minute..
[/quote] *=:

[krldr871]

banking transactions or any transactions that require secrecy should not use proxy servers..
lets say u want to login to ur netbanking account..proxy use cheste, it will show u the same interface as the bank website shows..anyway these kind of transactions are secured with TLS..so proxy servers cannot do much with the encrypted info..but consider a scenario where the proxy tries to launch a phishing attack..interface bank website dhe untadi..kani vaadi own server..and u cannot even differentiate because url kuda different ga untayi proxies use cheste..so alantappudu TLS enabled ayina kani, adhi vaadi own server certificate avvachu which he can decrypt straight away..
anduke security important ankunte proxies use cheyakudadu..i dont know if there are secure proxies..naku idea ledu dani gurinchi  sSc_hiding2 sSc_hiding2

[krldr871]

[quote author=Jambhalheart link=topic=95623.msg1025183#msg1025183 date=1283793839]

really good buddy, thanx for reply.

generally, proxy servers r not preferred for banking or some specific applications..


but, how is it possible for proxy servers to change ip address quite often ???

ante, proxy server tho DB lo post vesthe,, okkoka post, okkoka ip address ni chupisthondi...

edi chinna doubt, it may change middle servers, but how its possible for sometimes like vtunnel,kproxy etc., sites to change ip address quite often ?????
[/quote]
well..not very sure about this..but proxies will have to serve thousands of connections at a time..so they would need more than one ip for sure..dynamic ga free unnadi use cheskuntadani na guess..anduke neku prati saari different ip  ravachu..interesting observation could be if any of those ips repeat..repeat ayitunayi ante idi correct ankunta

[Jambhalheart]

[quote author=Leader871 link=topic=95623.msg1025187#msg1025187 date=1283794204]
banking transactions or any transactions that require secrecy should not use proxy servers..
lets say u want to login to ur netbanking account..proxy use cheste, it will show u the same interface as the bank website shows..anyway these kind of transactions are secured with TLS..so proxy servers cannot do much with the encrypted info..but consider a scenario where the proxy tries to launch a phishing attack..interface bank website dhe untadi..kani vaadi own server..and u cannot even differentiate because url kuda different ga untayi proxies use cheste..so alantappudu TLS enabled ayina kani, adhi vaadi own server certificate avvachu which he can decrypt straight away..
anduke security important ankunte proxies use cheyakudadu..i dont know if there are secure proxies..naku idea ledu dani gurinchi  sSc_hiding2 sSc_hiding2
[/quote]

normally, what they r doing now a days is, they r using cache server. In the sense, suppose if u access andhrafriends thru one proxy server , a request is sent I guess on behalf of U to andhrafriends server, after sometime,If I access andhrafriends thru same proxy server, then no request is sent to andhrafriends server ! truly, it happens sometimes. The web page in cache server is delivered to me... I observed it...

[Jambhalheart]

[quote author=Leader871 link=topic=95623.msg1025189#msg1025189 date=1283794356]
well..not very sure about this..but proxies will have to serve thousands of connections at a time..so they would need more than one ip for sure..dynamic ga free unnadi use cheskuntadani na guess..anduke neku prati saari different ip  ravachu..interesting observation could be if any of those ips repeat..repeat ayitunayi ante idi correct ankunta
[/quote]


yes they do.

kani gammathu enti ante, every ip address nenu trace chesthanu.... pratidi same location kee point chesthundi !


ante vadu anni servers maintain chesthunnadu.... vtunnel must have atleast 10 servers with different ip addresses..


chuddam, mana DB friends, ee process ela work avtundi telusu emo.....

[krldr871]

[quote author=Jambhalheart link=topic=95623.msg1025194#msg1025194 date=1283794539]
normally, what they r doing now a days is, they r using cache server. In the sense, suppose if u access andhrafriends thru one proxy server , a request is sent I guess on behalf of U to andhrafriends server, after sometime,If I access andhrafriends thru same proxy server, then no request is sent to andhrafriends server ! truly, it happens sometimes. The web page in cache server is delivered to me... I observed it...
[/quote]
yaa..caching use chestayi better efficiency kosam..