Best practices for giving outside developer SSH access?





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N00b here - I'm upgrading my website so that it isn't using a depreciated version of MySql/ PHP. I'm not comfortable enough with the code so I'm using an outside developer.



Due to this being database related I they will need SSH access ... which scares me.



I'm mostly worried about this developer accessing or downloading files that they don't need/I don't want them to. Are there activity logs when using SSH that shows what files were accessed? Is there a way to delete the logs?



I appreciate any thoughts!










share|improve this question







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  • 3





    Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

    – ceejayoz
    6 hours ago






  • 2





    Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

    – HBruijn
    6 hours ago











  • Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

    – Anubioz
    6 hours ago













  • @Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

    – ceejayoz
    5 hours ago











  • @ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

    – Anubioz
    5 hours ago


















2















N00b here - I'm upgrading my website so that it isn't using a depreciated version of MySql/ PHP. I'm not comfortable enough with the code so I'm using an outside developer.



Due to this being database related I they will need SSH access ... which scares me.



I'm mostly worried about this developer accessing or downloading files that they don't need/I don't want them to. Are there activity logs when using SSH that shows what files were accessed? Is there a way to delete the logs?



I appreciate any thoughts!










share|improve this question







New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 3





    Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

    – ceejayoz
    6 hours ago






  • 2





    Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

    – HBruijn
    6 hours ago











  • Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

    – Anubioz
    6 hours ago













  • @Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

    – ceejayoz
    5 hours ago











  • @ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

    – Anubioz
    5 hours ago














2












2








2








N00b here - I'm upgrading my website so that it isn't using a depreciated version of MySql/ PHP. I'm not comfortable enough with the code so I'm using an outside developer.



Due to this being database related I they will need SSH access ... which scares me.



I'm mostly worried about this developer accessing or downloading files that they don't need/I don't want them to. Are there activity logs when using SSH that shows what files were accessed? Is there a way to delete the logs?



I appreciate any thoughts!










share|improve this question







New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












N00b here - I'm upgrading my website so that it isn't using a depreciated version of MySql/ PHP. I'm not comfortable enough with the code so I'm using an outside developer.



Due to this being database related I they will need SSH access ... which scares me.



I'm mostly worried about this developer accessing or downloading files that they don't need/I don't want them to. Are there activity logs when using SSH that shows what files were accessed? Is there a way to delete the logs?



I appreciate any thoughts!







ssh logging






share|improve this question







New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 6 hours ago









Roberto FrinkRoberto Frink

111




111




New contributor




Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Roberto Frink is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 3





    Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

    – ceejayoz
    6 hours ago






  • 2





    Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

    – HBruijn
    6 hours ago











  • Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

    – Anubioz
    6 hours ago













  • @Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

    – ceejayoz
    5 hours ago











  • @ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

    – Anubioz
    5 hours ago














  • 3





    Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

    – ceejayoz
    6 hours ago






  • 2





    Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

    – HBruijn
    6 hours ago











  • Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

    – Anubioz
    6 hours ago













  • @Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

    – ceejayoz
    5 hours ago











  • @ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

    – Anubioz
    5 hours ago








3




3





Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

– ceejayoz
6 hours ago





Someone with root access can do basically anything, including covering virtually any tracks they might leave. If you don't have an existing reputable contact (preferably a firm, and preferably in a jurisdiction you can go after in something like small claims court), you may be better off setting up a new server, contracting them to do any development work on the codebase to bring it up to modern PHP (thus controlling what you provide them with), and installing it yourself on the new server. Even there, there's a risk of back-doors.

– ceejayoz
6 hours ago




2




2





Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

– HBruijn
6 hours ago





Is your developer expected to do the system upgrade for you? If so they will probably need sysadmin level acces and then they can do anything and everything. But for inspiration see this Q&A of mine: serverfault.com/q/805333/37681

– HBruijn
6 hours ago













Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

– Anubioz
6 hours ago







Mysql database can be configured to allow direct remote access without need to provide SSH access. Malicious developer can add backdoor while having any access level though... (Backup is your friend)

– Anubioz
6 hours ago















@Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

– ceejayoz
5 hours ago





@Anubioz If a MySQL (and PHP) upgrade is required, as appears to be the case, mere access to run SQL queries won't be sufficient.

– ceejayoz
5 hours ago













@ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

– Anubioz
5 hours ago





@ceejayoz I considered the MySQL/PHP versions already to be upgraded on the host for the developer to fix compatability issues with the web app itself (since updating OS for latest software version otherwise might be non-trivial task, usually unsuited for them ))

– Anubioz
5 hours ago










2 Answers
2






active

oldest

votes


















4














In a password protected area you can install for instance https://www.adminer.org/ or https://www.phpmyadmin.net/ to allow someone access to the database without giving them SSH access, but that won't allow them to upgrade the OS for you.



Almost regardless of how much you trust the developer, make a good backup beforehand of your system, settings and data.






share|improve this answer
























  • Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

    – Roberto Frink
    6 hours ago











  • Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

    – ceejayoz
    5 hours ago











  • Thanks! That is a very astute point @ceejayoz

    – Roberto Frink
    5 hours ago





















2














No, you're allowing someone you don't trust to have root access to your servers. which means they can install a rat in the system or mess with it. you can log files accessed and permissions by creating an account and pass for the person but since he will need root access he can log in and then start deleting your monitoring system. which leaves you to square one. i suggest hire a firm that has reputation. hiring a single person from a craigslist ad would be asking for trouble.






share|improve this answer


























  • Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

    – Roberto Frink
    5 hours ago













  • my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

    – user3897632
    4 hours ago












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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














In a password protected area you can install for instance https://www.adminer.org/ or https://www.phpmyadmin.net/ to allow someone access to the database without giving them SSH access, but that won't allow them to upgrade the OS for you.



Almost regardless of how much you trust the developer, make a good backup beforehand of your system, settings and data.






share|improve this answer
























  • Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

    – Roberto Frink
    6 hours ago











  • Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

    – ceejayoz
    5 hours ago











  • Thanks! That is a very astute point @ceejayoz

    – Roberto Frink
    5 hours ago


















4














In a password protected area you can install for instance https://www.adminer.org/ or https://www.phpmyadmin.net/ to allow someone access to the database without giving them SSH access, but that won't allow them to upgrade the OS for you.



Almost regardless of how much you trust the developer, make a good backup beforehand of your system, settings and data.






share|improve this answer
























  • Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

    – Roberto Frink
    6 hours ago











  • Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

    – ceejayoz
    5 hours ago











  • Thanks! That is a very astute point @ceejayoz

    – Roberto Frink
    5 hours ago
















4












4








4







In a password protected area you can install for instance https://www.adminer.org/ or https://www.phpmyadmin.net/ to allow someone access to the database without giving them SSH access, but that won't allow them to upgrade the OS for you.



Almost regardless of how much you trust the developer, make a good backup beforehand of your system, settings and data.






share|improve this answer













In a password protected area you can install for instance https://www.adminer.org/ or https://www.phpmyadmin.net/ to allow someone access to the database without giving them SSH access, but that won't allow them to upgrade the OS for you.



Almost regardless of how much you trust the developer, make a good backup beforehand of your system, settings and data.







share|improve this answer












share|improve this answer



share|improve this answer










answered 6 hours ago









HBruijnHBruijn

56.5k1190150




56.5k1190150













  • Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

    – Roberto Frink
    6 hours ago











  • Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

    – ceejayoz
    5 hours ago











  • Thanks! That is a very astute point @ceejayoz

    – Roberto Frink
    5 hours ago





















  • Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

    – Roberto Frink
    6 hours ago











  • Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

    – ceejayoz
    5 hours ago











  • Thanks! That is a very astute point @ceejayoz

    – Roberto Frink
    5 hours ago



















Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

– Roberto Frink
6 hours ago





Awesome, thanks for the tips! My biggest fear is that there are around 100GB of proprietary/ trade secret documents in one directory that I don't want the developer downloading. Is there a way to temporary move that folder to somewhere they can't access? Realistically the code changes should only take a few hours so I suppose I could just download the entire folder and delete it from the server. Then upload it again after the fact. But is there an easier way than that?

– Roberto Frink
6 hours ago













Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

– ceejayoz
5 hours ago





Frankly, if you've got 100 GB of trade secrets on an out-of-support PHP server, I'd worry less about a particular developer and more about the rest of the Internet. Taking them off the server ASAP would be a good step either way.

– ceejayoz
5 hours ago













Thanks! That is a very astute point @ceejayoz

– Roberto Frink
5 hours ago







Thanks! That is a very astute point @ceejayoz

– Roberto Frink
5 hours ago















2














No, you're allowing someone you don't trust to have root access to your servers. which means they can install a rat in the system or mess with it. you can log files accessed and permissions by creating an account and pass for the person but since he will need root access he can log in and then start deleting your monitoring system. which leaves you to square one. i suggest hire a firm that has reputation. hiring a single person from a craigslist ad would be asking for trouble.






share|improve this answer


























  • Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

    – Roberto Frink
    5 hours ago













  • my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

    – user3897632
    4 hours ago
















2














No, you're allowing someone you don't trust to have root access to your servers. which means they can install a rat in the system or mess with it. you can log files accessed and permissions by creating an account and pass for the person but since he will need root access he can log in and then start deleting your monitoring system. which leaves you to square one. i suggest hire a firm that has reputation. hiring a single person from a craigslist ad would be asking for trouble.






share|improve this answer


























  • Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

    – Roberto Frink
    5 hours ago













  • my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

    – user3897632
    4 hours ago














2












2








2







No, you're allowing someone you don't trust to have root access to your servers. which means they can install a rat in the system or mess with it. you can log files accessed and permissions by creating an account and pass for the person but since he will need root access he can log in and then start deleting your monitoring system. which leaves you to square one. i suggest hire a firm that has reputation. hiring a single person from a craigslist ad would be asking for trouble.






share|improve this answer















No, you're allowing someone you don't trust to have root access to your servers. which means they can install a rat in the system or mess with it. you can log files accessed and permissions by creating an account and pass for the person but since he will need root access he can log in and then start deleting your monitoring system. which leaves you to square one. i suggest hire a firm that has reputation. hiring a single person from a craigslist ad would be asking for trouble.







share|improve this answer














share|improve this answer



share|improve this answer








edited 5 hours ago









ceejayoz

27.1k66392




27.1k66392










answered 5 hours ago









user3897632user3897632

224




224













  • Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

    – Roberto Frink
    5 hours ago













  • my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

    – user3897632
    4 hours ago



















  • Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

    – Roberto Frink
    5 hours ago













  • my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

    – user3897632
    4 hours ago

















Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

– Roberto Frink
5 hours ago







Thanks! The developer would actually be from the company that made the specific platform I need updating. However, they are located in a different country where legal action would be unlikely which is what worries me most. But I think I am being overly paranoid.

– Roberto Frink
5 hours ago















my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

– user3897632
4 hours ago





my advice is just make a backup copy of the system before access. that way you can restore if there's any issues.

– user3897632
4 hours ago










Roberto Frink is a new contributor. Be nice, and check out our Code of Conduct.










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