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| I have a question? What are the common ports used by java programs for common protocols? |
| See /etc/services on any unix box. |
| you are not sure? ;) |
| :) |
| montanarry, common protocols?? |
| ;) |
| Like http, tcp/ip and so on |
| You mean like http - 80? It's not java-related :) |
| montanarry, "cat /etc/services" |
| Yes Koplaf, are you trying to direct me to some documents? If yes, where are those documents? |
| they're not docs |
| the protocols are independent of programming language |
| they're part of unix system |
| Oh well I have windows |
| montanarry, I tried to tell you what file to look in, but I guess you have never heard about unix/linux |
| I have buddy |
| I think the services file is available in windows as well, but I am not sure where |
| montanarry, just google |
| I did |
| The file is almost the same everywhere |
| But didn't get any so i came here I tried this whole phrase |
| so what are you looking for?? |
| What are the common ports used by java programs for common protocols? It cant search on it I just want to know |
| you mean common ports for common protocols? |
| What ports are used and for what protocols by java programs, thats it |
| montanarry, i see so you want my /etc/services file? :) |
| Like tomcat uses 80:80 i.e a webserver it serves jsp and servlets |
| It has a list of port -> protocol oh it's not common 8080 is not a standard port |
| Ok tell me how many protocols are there And what ports they use Then could you please tell me out of those ports which are/can be used by java applications |
| there are an infinite number of protocols, everyone uses his own... |
| montanarry, there are too many if you are looking for non-standard ports |
| so how many stars are there, exactly? |
| :D |
| there are 2^16 ports, you can use them all in java... |
| Infinite What about standard ports |
| look at /etc/services |
| montanarry, using some ports might require admin/root rights |
| Ernmimril, what standard ports you are talking about? I dont have unix system buddy, i am on windows |
| montanarry, http://iptables-tutorial.frozentux.net/other/services.txt |
| montanarry, then why worry about ports? You're vulnerable regardless :) |
| montanarry, are you just trolling? |
| No it's not :) |
| AmeliaR, you got that right man |
| montanarry,did you google for the services file yet? that is the list of standard services (ports+applications) |
| For windows ? |
| yes Windows systems: %SystemRoot%\System32\drivers\etc\services for example: C:\WINDOWS\system32\driver\etc do you know how to use google? |
| Yup i got it So Koplaf: standar protocols are tcp/ip and udp right? Standard* |
| go and buy some books on network programming how old are you? 7? "unix network programming" may be a good book to read tcp/udp and ip are network protocols on a low level, your applications generally use a higher level protocol like http http typically runs on top of tcp/ip |
| IP is in the network layer, tcp and udp are in the transport layer, http is in the application layer - each dependent upon and "riding on" the previous. |
| So java programs can use any port, right ? |
| If the OS allows it, yeah |
| montanarry, more or less, yeah, and depends on whether you're talking about as a server or as a client. |
| Server |
| like Lusis Backwood JR said, it depends on the underlying OS. A decent OS won't let you bind to a port <1024 if you're not running with admin privileges. And even some not-so-decent OS' as well. |
| Ernimri, thanks How to overide java.lang.Object.equals so that equality is based on values rather than references? |
| No kiddin! |
| Hahaha |
| :( |
| Google is your friend |
| Thanks guys :) |
