Jail Breaking, What Does This Mean?
Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
re: Jail Breaking, What Does This Mean?
Hi, To explain jailbreaking, I think we need to visit operating system security and user levels. But first: Yes - jailbreaking and unlocking are two different things. Jailbreaking means using some OS exploit to run programs using a different user's privilege, whereas unlocking means allowing a device to be used on any carrier (as many phones are locked to specific carriers). Now onto the subject at hand: There are at least two user modes under Unix (which is the basis for iOS and Mac OS X and other OS's such as Linux): root and normal user. The root is the user which has total control ovth files and programs on Unix, such as program installation, file system modification and so on. Many Unix systems run in normal user mode for most of the time - and iOS follows this. Under iOS, there are two users defined (although it may not appear to be so): root and mobile. Root is the admin account while mobile is the regular user mode of the iOS. What dailbreak does is it changes the running mode of the iDevice to that of root mode where the device user has total control over files and programs on an iDevice. This allows installation of apps not authorized by Apple and to perform other things such as modifying how the device works by using tweaks and changing files. But you may ask, how can I access my iDevice from my computer? This is where SSH (Secure Shell) comes in. This is a terminal environment where a computer can access another computer over it network. A good example is remote website administration from a home computer. In order for this to work, the target device must be told to accept incoming SSH connections (in this case, by jailbreaking it and installing OpenSSH). From the local computer (the one which will be accessing the iDevice), the user needs to know the IP address of the iDevice, its root userdayn and password (by %default, it is root for user^n and allpine for password; it is recommended to change the password). Because we're using root user mode, be careful about what you do with file system in iDevice - one wrfg change and it requires restore via iTunes, which installs regular firmware instead of jailbroken firmware. Finally, let us investigate how jailbreaking is even possible. Operating systems, like any programs, contains well-known bugs and opportunities for programmers to mess around with it (at least through bugs and programs). For example, there was a bug fix release by Apple last year because some PDCF documents made the device unstable, which was used by jailbreak programmers (this is callbed exploit, that of using a bug to mess around in an OS). So in order for jailbreak to work, programmers need four things: the exploitable bug itself in a device firmware, a modified firmware that allows root control of a device, a way of transfering this new firmware and making it permanent (called untethered jailbreak). First, the programmers find out the exploit in a firmware, prepares a new (modified or unlocked) firmware that be^akes advantage of the exploit and makes it availible to others. Then the jailbreak package connects to the iDevice (mostly via iTunes connection) and embbeds the newly modified firmware to the device's memory. Then it does some modifications to make this patch permanent unless restoration via iTunes occurs, at which point the jailbreak will be undone by flashing the official firmware from Apple. Hope this helps. Cheers, Joseph - Original Message - From: Arnold Schmidt arno...@mindspring.com To: viphone@googlegroups.com Date sent: Mon, 11 Jun 2012 02:57:52 -0400 Subject: Jail Breaking, What Does This Mean? Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en. -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
Re: Jail Breaking, What Does This Mean?
Jailbreaking is not illegal however it will void any Apple warranties you have. But it is certainly not illegal. SSH I think allows you to securely connect to a remote machine. Christopher Hallsworth On 11/06/2012 07:57, Arnold Schmidt wrote: Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
RE: Jail Breaking, What Does This Mean?
Hi Arnold, You can always restore your phone through settings if you need to take it in to Apple. Jon -Original Message- From: viphone@googlegroups.com [mailto:viphone@googlegroups.com] On Behalf Of Arnold Schmidt Sent: Sunday, June 10, 2012 11:58 PM To: viphone@googlegroups.com Subject: Jail Breaking, What Does This Mean? Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en. -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
Re: Jail Breaking, What Does This Mean?
H, to answer the other question, jailbreaking and unlocking are not the same. Jailbreaking is getting out of the sandbox experience and allowing you to add tweaks or other apps which Apple normally doesn't allow. It enables you to do cool things with your phone which you can't normally do. Unlocking makes your phone usable with other carriers like T-mobile. You can jailbreak without unlocking and you can unlock without jailbreaking. Or, you can do both. -- Raul A. Gallegos Materialism: buying things we don't need with money we don't have to impress people that we don't like. Home Page: http://raulgallegos.com Twitter: https://twitter.com/rau47 Facebook: http://facebook.com/rgallegos74 On 6/11/2012 2:57 AM, Arnold Schmidt wrote: Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en. -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
Re: Jail Breaking, What Does This Mean?
I would like to have some tips on unlocking a iphone 3g. The unit is presently locked to att. Thanks much. larry -Original Message- From: Raul A. Gallegos Sent: Monday, June 11, 2012 1:36 PM To: viphone@googlegroups.com Subject: Re: Jail Breaking, What Does This Mean? H, to answer the other question, jailbreaking and unlocking are not the same. Jailbreaking is getting out of the sandbox experience and allowing you to add tweaks or other apps which Apple normally doesn't allow. It enables you to do cool things with your phone which you can't normally do. Unlocking makes your phone usable with other carriers like T-mobile. You can jailbreak without unlocking and you can unlock without jailbreaking. Or, you can do both. -- Raul A. Gallegos Materialism: buying things we don't need with money we don't have to impress people that we don't like. Home Page: http://raulgallegos.com Twitter: https://twitter.com/rau47 Facebook: http://facebook.com/rgallegos74 On 6/11/2012 2:57 AM, Arnold Schmidt wrote: Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en. -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en. -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
Re: Jail Breaking, What Does This Mean?
...And if I was a total non-techy, the below message would have made me run away screaming, and never want to jailbreak. grin. Seriously Joseph, sometimes you have to keep it simple, sort of like on the Braille Sense list. In short, non-techy terms, jailbreaking allows you to add tweaks or features or abilities to the iPhone which normally can't be done. -- Raul A. Gallegos Why do we press harder on a remote control when we know the batteries are almost dead? Home Page: http://raulgallegos.com Twitter: https://twitter.com/rau47 Facebook: http://facebook.com/rgallegos74 On 6/11/2012 3:32 AM, Joseph Lee wrote: Hi, To explain jailbreaking, I think we need to visit operating system security and user levels. But first: Yes - jailbreaking and unlocking are two different things. Jailbreaking means using some OS exploit to run programs using a different user's privilege, whereas unlocking means allowing a device to be used on any carrier (as many phones are locked to specific carriers). Now onto the subject at hand: There are at least two user modes under Unix (which is the basis for iOS and Mac OS X and other OS's such as Linux): root and normal user. The root is the user which has total control ovth files and programs on Unix, such as program installation, file system modification and so on. Many Unix systems run in normal user mode for most of the time - and iOS follows this. Under iOS, there are two users defined (although it may not appear to be so): root and mobile. Root is the admin account while mobile is the regular user mode of the iOS. What dailbreak does is it changes the running mode of the iDevice to that of root mode where the device user has total control over files and programs on an iDevice. This allows installation of apps not authorized by Apple and to perform other things such as modifying how the device works by using tweaks and changing files. But you may ask, how can I access my iDevice from my computer? This is where SSH (Secure Shell) comes in. This is a terminal environment where a computer can access another computer over it network. A good example is remote website administration from a home computer. In order for this to work, the target device must be told to accept incoming SSH connections (in this case, by jailbreaking it and installing OpenSSH). From the local computer (the one which will be accessing the iDevice), the user needs to know the IP address of the iDevice, its root userdayn and password (by %default, it is root for user^n and allpine for password; it is recommended to change the password). Because we're using root user mode, be careful about what you do with file system in iDevice - one wrfg change and it requires restore via iTunes, which installs regular firmware instead of jailbroken firmware. Finally, let us investigate how jailbreaking is even possible. Operating systems, like any programs, contains well-known bugs and opportunities for programmers to mess around with it (at least through bugs and programs). For example, there was a bug fix release by Apple last year because some PDCF documents made the device unstable, which was used by jailbreak programmers (this is callbed exploit, that of using a bug to mess around in an OS). So in order for jailbreak to work, programmers need four things: the exploitable bug itself in a device firmware, a modified firmware that allows root control of a device, a way of transfering this new firmware and making it permanent (called untethered jailbreak). First, the programmers find out the exploit in a firmware, prepares a new (modified or unlocked) firmware that be^akes advantage of the exploit and makes it availible to others. Then the jailbreak package connects to the iDevice (mostly via iTunes connection) and embbeds the newly modified firmware to the device's memory. Then it does some modifications to make this patch permanent unless restoration via iTunes occurs, at which point the jailbreak will be undone by flashing the official firmware from Apple. Hope this helps. Cheers, Joseph - Original Message - From: Arnold Schmidt arno...@mindspring.com To: viphone@googlegroups.com Date sent: Mon, 11 Jun 2012 02:57:52 -0400 Subject: Jail Breaking, What Does This Mean? Being new, I ask: I think jail breaking a phone means that one can install apps onto it that are not approved by apple. What is ssh? Most importantly, will this void my warranty, or will apple deny me updates because they think I have an illegal phone? I do not think one can get updates for an unlocked phone, I may not be correct about that. And I assume that jail breaking and unlocking are not the same. Thanks for clarification. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group
Re: Jail Breaking, What Does This Mean?
I would like to say thanks, Joseph, for writing your explanation of jail breaking, even though I really didn't understand much of it. The fault is mine, not yours. What I did gather is that when I get an IPhone, I will leave the doing of such things to others, and just take what Apple allows me to install. This is one area where I think the android phones are way ahead of the IPhones, in that it is open source, and encourages innovation. Even though I am leaning toward an IPhone at this time, I do believe that, within a little while, android is going to give the IPhone a really serious run for its money, as it were, because they do encourage innovation. Even if I had an android phone, I would leave this experimentation for others to do. And somebody wrote in another message that yes, jail breaking my phone would void my warranty. Oh well. Arnold Schmidt -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
Re: Jail Breaking, What Does This Mean?
It's true Android is more open than IOS by nature, but you still have to root your Android phone, which is analogous to jail breaking your IOS device, to get root privileges. Also, although the openness of Android allows for more innovation and creativity, it also permits more fragmentation. I think individual carriers and even the Android ecosystem as a while will begin to address this though. On 11/06/12 15:58, Arnold Schmidt wrote: I would like to say thanks, Joseph, for writing your explanation of jail breaking, even though I really didn't understand much of it. The fault is mine, not yours. What I did gather is that when I get an IPhone, I will leave the doing of such things to others, and just take what Apple allows me to install. This is one area where I think the android phones are way ahead of the IPhones, in that it is open source, and encourages innovation. Even though I am leaning toward an IPhone at this time, I do believe that, within a little while, android is going to give the IPhone a really serious run for its money, as it were, because they do encourage innovation. Even if I had an android phone, I would leave this experimentation for others to do. And somebody wrote in another message that yes, jail breaking my phone would void my warranty. Oh well. Arnold Schmidt -- Christopher (CJ) chaltain at Gmail -- You received this message because you are subscribed to the VIPhone Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/viphone@googlegroups.com/. To post to this group, send email to viphone@googlegroups.com. To unsubscribe from this group, send email to viphone+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
