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  • If I use a proxy server, can my computer bypass the ISP?

    - by Torpido
    If somebody is using some kind of proxy server to connect to the internet, does their computer connects to the ISP first and then to the proxy server, or does it connect to the proxy server first and then to the ISP? Some of my friends are able to get free internet on their mobile using some Proxy servers. I am not asking you for free internet, I am only asking you how this would be possible. How are they are able to trick the ISP firewall?

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  • I want to send Silent SMS

    - by user554445
    Hi, somebody help me..... It is sometimes necessary for me can send silent SMS to other subscriber, and for this purpose exist such program as Hushsms but It is intended for users Windows Mobile, and I prefer (and use) Nokia n97 with another operating system. Who knows the similar program for Symbian OS?(...or may be another way ?? decision of this problem) It is very important for me. Thankful in advance

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  • What do these remote addresses, local addresses, and states in TCPview mean?

    - by Joe
    I have been using TCPview lately to see what connections are made by different processes on my PC. Would somebody please explain what the following situations mean? Thanks. TCP Local Address: PC1234567890:3883 Remote Address: PC1234567890:0 State: LISTENING TCP Local Address: PC1234567890:4696 Remote Address: localhost:4697 State: ESTABLISHED Local Address: PC1234567890:4697 Remote Address: localhost:4696 State: ESTABLISHED UDP Local Address: PC1234567890:1234 Remote Address: . State:

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  • Why is rails called a dsl?

    - by b_ayan
    Recently, when I tried to explain why Rails is a DSL to an intern at my organisation, I was not able to articulate my reasonings to the effect I would like to. Maybe I do not understand the space well enough to teach the nuances. Redirecting him to Martin Fowler' article or the google ranked one InfoQ or other material has not helped much either. Can some explain why Rails is a DSL with an example / parallel situation which is not voodoo stuff for someone who is fairly new to the world of code? Understanding the ideology might also help in elaborating the intricacies of the rails ecosystem?

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  • Assigning a pointer variable to a const int in C++?

    - by John
    I'm wondering if anyone can explain the following to me: If I write int i = 0; float* pf = i; I get a compile error (gcc 4.2.1): error: invalid conversion from ‘int’ to ‘float*’ Makes sense - they are obviously two completely different types. But if instead I write const int i = 0; float* pf = i; It compiles without error. Why should the 'const' make a difference on the right hand side of the assignment? Isn't part of the idea of the 'const' keyword to be able to enforce type constraints for constant values? Any explanation I have been able to come up with feels kind of bogus. And none of my explanations also explain the fact that const int i = 1; float* pf = i; fails to compile. Can anyone offer an explanation?

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  • How does the stream manipulators work?

    - by Narek
    It is well known that the user can define stream manipulators like this: ostream& tab(ostream & output) { return output<< '\t'; } And this can be used in main() like this: cout<<'a'<<tab<<'b'<<'c'<<endl; Please explain me how does this all work? If operator<< assumes as a second parameter a pointer to the function that takes and returns ostream &, then please explain my why it is necessary? What would be wrong if the function does not take and return ostream & but it was void instead of ostream &? Also it is interesting why “dec”, “hex” manipulators take effect until I don’t change between them, but user defined manipulators should be always used in order to take effect for each streaming?

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  • android question about service and the method onstartcommand

    - by user516883
    In a service class there is a method to start the service. If that service gets done executing does it runs onstartcommand from the beginning? Is onstartcommand sorta like a loop as long as the service is running. For example i have onstartcommand { int x = 0; if(x == 0){ } else{ } } After that is complete does it run it again. If you know that answer please explain. I have read google explanation of services and it did not explain that part very well. Is onstartcommand sorta like a loop as long as the service is runnning

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  • weird index behavior

    - by TasostheGreat
    I have set up my table with an index only on done_status(done_status =INT), when I use EXPLAIN SELECT * FROM reminder WHERE done_status=2 i get this back id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE reminder ALL done_status NULL NULL NULL 5 Using where but when I give this command EXPLAIN SELECT * FROM reminder WHERE done_status=1 that's what I get back: id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE reminder ref done_status done_status 4 const 2 first time it shows me it uses 5 rows second time 2 rows I don't think the index works, if I understood it right first time it should give me 3 rows. What do I do wrong? SHOW INDEX FROM reminder: Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment reminder 1 done_status 1 done_status A 5 NULL NULL BTREE

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  • SYSLINUX 4.07 EDD 2013-07-25 Copyright (C) 1994-2013 H. Peter Anvin et al [duplicate]

    - by Aniel Arias
    This question already has an answer here: Not booting from USB or CD (SYSLINUX Message) 10 answers this what is happening, i downloaded (ubuntu-gnome-14.04.1-desktop) and (elementaryos-unstable-amd64.20140810) to try out in my laptop and i have use (unetbootin-windows-608) and (Universal-USB-Installer-1.9.5.5) but i get this message every time i try to boot from the usb (SYSLINUX 4.07 EDD 2013-07-25 Copyright (C) 1994-2013 H. Peter Anvin et al) however i tried in an old desktop that i have and it works although the installer gets stuck on most of the time at the part of reading partitions/hard drives so please i really need help with this. note: i did installed os x long time ago and i broke windows installation then fix it following some online tutorials just for FYI thanks please can somebody help to fix this problem, i have been looking on google but haven't found anything in concrete. please help

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  • Boot failure : No DEFAULT or UI configuration directive found!

    - by user12378
    I've tried to install Ubuntu on a VMWare Virtual Machine, but it never get's past the bootloader : ISOLINUX 4.01 debian-20100714 ETCD Copyright (C) 1994-2010 H. Peter Anvin et al No DEFAULT or UI configuration directive found! boot: _ I've also tried to burn this .iso image to a CD and go from there - but I got the same problems also ... Some more details : VMWare Server 2.0.2 Build 203138 on Windows 2008 R2 ubuntu-10.10-desktop-i386.iso image used (downloaded yesterday evening) I have no clue, why this is not booting !!! Somebody have any ideas ? Thanks, Sven

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  • svn connection timeout

    - by Tom celic
    I have Ubuntu 12.04 running in virtual box inside Windows 7. I have the network adapter set as NAT and everything networking wise seems to be running smoothly (internet / git ect.). However, for some reason, svn always times out when i.e michael@michael-VirtualBox:~/Documents/deleteme$ svn co svn://svn.openwrt.org/openwrt/trunk/ svn: Can't connect to host 'svn.openwrt.org': Connection timed out Somebody suggested to me that I might need to change what ports svn uses. Does anybody have any idea how to diagnose / solve the problem? Thanks!

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