proftp 550 Overwrite permission denied

neorf · June 3, 2009, 9:55am

All ok with proftp when i upload files, but when i try to overwrite e file i get:
"550 Overwrite permission denied".
what can i do?
thanks

neorf

Eric · June 3, 2009, 10:02am

Howdy,

I hadn’t run into that before, but in poking around on Google a bit, some folks make reference to tweaking the /etc/proftpd.conf file, and making sure this is set:

AllowOverwrite On

Do you see that in there?

If that doesn’t help, you may wish to post the contents your proftpd.conf file.

Thanks,
-Eric

neorf · June 3, 2009, 10:36am

SOLVED: just added:

[code:1]<Global>
AllowOverwrite on
</Global>[/code:1]

neorf · June 7, 2009, 12:57pm

AllowOverwrite is ON, however this is my /etc/proftpd/proftpd.conf file.
if i log in using sftp connection via filezilla, i can upload, but i’d like to upload via normal ftp

[code:1]

/etc/proftpd/proftpd.conf – This is a basic ProFTPD configuration file.

To really apply changes reload proftpd after modifications.

Includes DSO modules

Include /etc/proftpd/modules.conf

Set off to disable IPv6 support which is annoying on IPv4 only boxes.

UseIPv6 on

ServerName "Debian"
ServerType standalone
DeferWelcome off

MultilineRFC2228 on
DefaultServer on
ShowSymlinks on

TimeoutNoTransfer 600
TimeoutStalled 600
TimeoutIdle 1200

DisplayLogin welcome.msg
DisplayChdir .message true
ListOptions "-l"

DenyFilter *.*/

Use this to jail all users in their homes

DefaultRoot ~

Users require a valid shell listed in /etc/shells to login.

Use this directive to release that constrain.

RequireValidShell off

Port 21 is the standard FTP port.

Port 21

In some cases you have to specify passive ports range to by-pass

firewall limitations. Ephemeral ports can be used for that, but

feel free to use a more narrow range.

PassivePorts 49152 65534

If your host was NATted, this option is useful in order to

allow passive tranfers to work. You have to use your public

address and opening the passive ports used on your firewall as well.

MasqueradeAddress 1.2.3.4

To prevent DoS attacks, set the maximum number of child processes

to 30. If you need to allow more than 30 concurrent connections

at once, simply increase this value. Note that this ONLY works

in standalone mode, in inetd mode you should use an inetd server

that allows you to limit maximum number of processes per service

(such as xinetd)

MaxInstances 30

Set the user and group that the server normally runs at.

User proftpd
Group nogroup

Umask 022 is a good standard umask to prevent new files and dirs

(second parm) from being group and world writable.

Umask 022 022

Normally, we want files to be overwriteable.

AllowOverwrite on

Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:

PersistentPasswd off

This is required to use both PAM-based authentication and local passwords

AuthOrder *mod_auth_pam.c mod_auth_unix.c

Be warned: use of this directive impacts CPU average load!

Uncomment this if you like to see progress and transfer rate with ftpwho

in downloads. That is not needed for uploads rates.

UseSendFile off

Choose a SQL backend among MySQL or PostgreSQL.

Both modules are loaded in default configuration, so you have to specify the backend

or comment out the unused module in /etc/proftpd/modules.conf.

Use ‘mysql’ or ‘postgres’ as possible values.

#<IfModule mod_sql.c>

SQLBackend mysql

#</IfModule>

TransferLog /var/log/proftpd/xferlog
SystemLog /var/log/proftpd/proftpd.log

<IfModule mod_quotatab.c>
QuotaEngine off
</IfModule>

<IfModule mod_ratio.c>
Ratios off
</IfModule>

Delay engine reduces impact of the so-called Timing Attack described in

http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02

It is on by default.

<IfModule mod_delay.c>
DelayEngine on
</IfModule>

<IfModule mod_ctrls.c>
ControlsEngine off
ControlsMaxClients 2
ControlsLog /var/log/proftpd/controls.log
ControlsInterval 5
ControlsSocket /var/run/proftpd/proftpd.sock
</IfModule>

<IfModule mod_ctrls_admin.c>
AdminControlsEngine off
</IfModule>

Alternative authentication frameworks

#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

This is used for FTPS connections

#Include /etc/proftpd/tls.conf

A basic anonymous configuration, no upload directories.

<Anonymous ~ftp>

User ftp

Group nogroup

# We want clients to be able to login with "anonymous" as well as "ftp"

UserAlias anonymous ftp

# Cosmetic changes, all files belongs to ftp user

DirFakeUser on ftp

DirFakeGroup on ftp

RequireValidShell off

# Limit the maximum number of anonymous logins

MaxClients 10

# We want ‘welcome.msg’ displayed at login, and ‘.message’ displayed

# in each newly chdired directory.

DisplayLogin welcome.msg

DisplayFirstChdir .message

# Limit WRITE everywhere in the anonymous chroot

<Directory *>

<Limit WRITE>

DenyAll

</Limit>

</Directory>

# Uncomment this if you’re brave.

# <Directory incoming>

# # Umask 022 is a good standard umask to prevent new files and dirs

# # (second parm) from being group and world writable.

# Umask 022 022

# <Limit READ WRITE>

# DenyAll

# </Limit>

# <Limit STOR>

# AllowAll

# </Limit>

# </Directory>

</Anonymous>

[/code:1]

neorf · June 7, 2009, 12:57pm

AllowOverwrite is ON, however this is my /etc/proftpd/proftpd.conf file.
if i log in using sftp connection via filezilla, i can upload, but i’d like to upload via normal ftp

[code:1]

/etc/proftpd/proftpd.conf – This is a basic ProFTPD configuration file.

To really apply changes reload proftpd after modifications.

Includes DSO modules

Include /etc/proftpd/modules.conf

Set off to disable IPv6 support which is annoying on IPv4 only boxes.

UseIPv6 on

ServerName "Debian"
ServerType standalone
DeferWelcome off

MultilineRFC2228 on
DefaultServer on
ShowSymlinks on

TimeoutNoTransfer 600
TimeoutStalled 600
TimeoutIdle 1200

DisplayLogin welcome.msg
DisplayChdir .message true
ListOptions "-l"

DenyFilter *.*/

Use this to jail all users in their homes

DefaultRoot ~

Users require a valid shell listed in /etc/shells to login.

Use this directive to release that constrain.

RequireValidShell off

Port 21 is the standard FTP port.

Port 21

In some cases you have to specify passive ports range to by-pass

firewall limitations. Ephemeral ports can be used for that, but

feel free to use a more narrow range.

PassivePorts 49152 65534

If your host was NATted, this option is useful in order to

allow passive tranfers to work. You have to use your public

address and opening the passive ports used on your firewall as well.

MasqueradeAddress 1.2.3.4

To prevent DoS attacks, set the maximum number of child processes

to 30. If you need to allow more than 30 concurrent connections

at once, simply increase this value. Note that this ONLY works

in standalone mode, in inetd mode you should use an inetd server

that allows you to limit maximum number of processes per service

(such as xinetd)

MaxInstances 30

Set the user and group that the server normally runs at.

User proftpd
Group nogroup

Umask 022 is a good standard umask to prevent new files and dirs

(second parm) from being group and world writable.

Umask 022 022

Normally, we want files to be overwriteable.

AllowOverwrite on

Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:

PersistentPasswd off

This is required to use both PAM-based authentication and local passwords

AuthOrder *mod_auth_pam.c mod_auth_unix.c

Be warned: use of this directive impacts CPU average load!

Uncomment this if you like to see progress and transfer rate with ftpwho

in downloads. That is not needed for uploads rates.

UseSendFile off

Choose a SQL backend among MySQL or PostgreSQL.

Both modules are loaded in default configuration, so you have to specify the backend

or comment out the unused module in /etc/proftpd/modules.conf.

Use ‘mysql’ or ‘postgres’ as possible values.

#<IfModule mod_sql.c>

SQLBackend mysql

#</IfModule>

TransferLog /var/log/proftpd/xferlog
SystemLog /var/log/proftpd/proftpd.log

<IfModule mod_quotatab.c>
QuotaEngine off
</IfModule>

<IfModule mod_ratio.c>
Ratios off
</IfModule>

Delay engine reduces impact of the so-called Timing Attack described in

http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02

It is on by default.

<IfModule mod_delay.c>
DelayEngine on
</IfModule>

<IfModule mod_ctrls.c>
ControlsEngine off
ControlsMaxClients 2
ControlsLog /var/log/proftpd/controls.log
ControlsInterval 5
ControlsSocket /var/run/proftpd/proftpd.sock
</IfModule>

<IfModule mod_ctrls_admin.c>
AdminControlsEngine off
</IfModule>

Alternative authentication frameworks

#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

This is used for FTPS connections

#Include /etc/proftpd/tls.conf

A basic anonymous configuration, no upload directories.

<Anonymous ~ftp>

User ftp

Group nogroup

# We want clients to be able to login with "anonymous" as well as "ftp"

UserAlias anonymous ftp

# Cosmetic changes, all files belongs to ftp user

DirFakeUser on ftp

DirFakeGroup on ftp

RequireValidShell off

# Limit the maximum number of anonymous logins

MaxClients 10

# We want ‘welcome.msg’ displayed at login, and ‘.message’ displayed

# in each newly chdired directory.

DisplayLogin welcome.msg

DisplayFirstChdir .message

# Limit WRITE everywhere in the anonymous chroot

<Directory *>

<Limit WRITE>

DenyAll

</Limit>

</Directory>

# Uncomment this if you’re brave.

# <Directory incoming>

# # Umask 022 is a good standard umask to prevent new files and dirs

# # (second parm) from being group and world writable.

# Umask 022 022

# <Limit READ WRITE>

# DenyAll

# </Limit>

# <Limit STOR>

# AllowAll

# </Limit>

# </Directory>

</Anonymous>

[/code:1]

kjertil · October 19, 2012, 1:12pm

Hello!
Does virtualmin have support for this directive, cause i can’t seem to find it anywhere?

[code:1] AllowOverwrite on [/code:1]

Adding it to the conf file manually works fine, though!

dan74mm · August 17, 2014, 10:45pm

Here is answer for “550 Overwrite permission denied”: http://dan-blog.ro/proftpd-550-overwrite-permission-denied-virtualmin-webmin.html

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