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| ui_login_sftp 2017-01-14 | ui_login_sftp 2024-02-16 (current) | ||
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| - | ====== SFTP Page (Advanced Site Settings dialog) ====== | + | ====== The SFTP Page (Advanced Site Settings dialog) ====== |
| The //SFTP page// on the [[ui_login_advanced|Advanced Site Settings dialog]] allows user to configure [[sftp|SFTP protocol]] specific options. | The //SFTP page// on the [[ui_login_advanced|Advanced Site Settings dialog]] allows user to configure [[sftp|SFTP protocol]] specific options. | ||
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| ===== [[protocol_options]] Protocol Options ===== | ===== [[protocol_options]] Protocol Options ===== | ||
| - | Use //SFTP server// to specify path to SFTP server binary. Keep value //Default// to use the default SFTP server. Usually there will not be more SFTP servers to choose from. However you may find the option useful to change the way the SFTP server is launched. Particularly you may want to change user (known as ''su'')·((See [[faq_su|FAQ]] for details.)). | + | Use //SFTP server// to specify path to SFTP server binary. Keep value //Default// to use the default SFTP server. Usually there will not be more SFTP servers to choose from. However you may find the option useful to change the way the SFTP server is launched. Particularly you may want to change user (known as ''su'').((See [[faq_su|FAQ]] for details.)) |
| Use //Preferred SFTP protocol version// to configure maximal version of SFTP protocol that WinSCP will attempt to use. WinSCP will seamlessly downgrade to any lower version that the server supports. The only reason, that you may want to change the option for, is bug either in SFTP server or WinSCP itself specific to particular version of the protocol. | Use //Preferred SFTP protocol version// to configure maximal version of SFTP protocol that WinSCP will attempt to use. WinSCP will seamlessly downgrade to any lower version that the server supports. The only reason, that you may want to change the option for, is bug either in SFTP server or WinSCP itself specific to particular version of the protocol. | ||
| - | By default SFTP has option //Allow SCP fallback// enabled. With the option enabled, WinSCP tries to find SFTP server and when it fails, it initiates SCP protocol. Note that, when fallback is disabled, WinSCP tries harder using non-standard methods to find the SFTP server. It is necessary to allow SFTP on SSH-1 server (read [[requirements#sftp|SFTP requirements]] for more). You can see the protocol actually used on the [[ui_fsinfo|Server and Protocol Information Dialog]]. | + | Adhering to the SFTP specification, when changing directory, WinSCP asks the SFTP server to canonicalize the new path.((Using the ''SSH_FXP_REALPATH'' request.)) With OpenSSH (and possibly other) SFTP servers this has side effect that the symbolic links in the path are resolved, what can complicate navigation back. Some minor SFTP servers even have this functionality broken. For either of these reasons, you may want to turn the canonicalization off, by unchecking //Canonicalize paths on the server//. |
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| + | By default SFTP has option //Allow SCP fallback// enabled. With the option enabled, WinSCP tries to find SFTP server and when it fails, it initiates SCP protocol. Note that, when fallback is disabled, WinSCP tries harder using non-standard methods to find the SFTP server. You can see the protocol actually used on the [[ui_fsinfo|Server and Protocol Information Dialog]]. SCP fallback cannot be combined with a custom path to SFTP server binary. | ||
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| + | The //Use POSIX rename// enables use of OpenSSH ''posix-rename@openssh.com'' SFTP extension to rename files with POSIX semantics, instead of the standard SFTP rename. | ||
| ===== [[bugs]] Detection of Known Bugs in SFTP Servers ===== | ===== [[bugs]] Detection of Known Bugs in SFTP Servers ===== | ||
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| If the bug is detected, WinSCP will reverse the order of the arguments too. | If the bug is detected, WinSCP will reverse the order of the arguments too. | ||
| - | The bug is known for symbolic links on %%SFTP%% servers shipped with all versions of [[&openssh|OpenSSH]] (bug [[https://bugzilla.mindrot.org/show_bug.cgi?id=861|#861]]) and on [[http://www.proftpd.org/docs/contrib/mod_sftp.html|ProFTPD/mod_sftp server]] (bug [[http://bugs.proftpd.org/show_bug.cgi?id=4080|#4080]]). For hard links, the bug is known on all current versions((A fix is scheduled for release.)) of %%SFTP%% servers shipped with ProFTPD/mod_sftp server (bug [[http://bugs.proftpd.org/show_bug.cgi?id=4080|#4080]]). | + | The bug is known for symbolic links on %%SFTP%% servers shipped with all versions of [[&openssh|OpenSSH]] (bug [[https://bugzilla.mindrot.org/show_bug.cgi?id=861|#861]]) and on [[http://www.proftpd.org/docs/contrib/mod_sftp.html|ProFTPD ''mod_sftp'' server]] (bug [[http://bugs.proftpd.org/show_bug.cgi?id=4080|#4080]]). For hard links, the bug is known on all current versions((A fix is scheduled for release.)) of %%SFTP%% servers shipped with ProFTPD ''mod_sftp'' server (bug [[http://bugs.proftpd.org/show_bug.cgi?id=4080|#4080]]). |
| ==== [[signedts]] Misinterprets File Timestamps Prior to 1970 ==== | ==== [[signedts]] Misinterprets File Timestamps Prior to 1970 ==== | ||