Shulou(Shulou.com)06/02 Report--

Build an ftp server, I use ubuntu 10.04 operating system, download vsftpdy source code,

Compiled, installed, and then according to INSTALL file, created a user and other operations.

Because time is tight, I use anonymous users to upload files for testing. Modified the/etc/vsftpd.conf file to

Remove the default comment that does not allow anonymous users to upload files, then save, then kill the vsftpd process, and then rerun

$ sudo vsftpd &

Start the FTP server.

Using a client, the connection works fine, but when uploading files, the 553 Could not create file error message is always reported.

I am also following the online practice of setting permissions on the/var/ftp directory, if set to chmod -R 777 /var/ftp

FTP server can not be started, after groping, finally found a solution.

First create a directory in the ftp directory and set permissions to 777

$ sudo mkdir /var/ftp/write

$sudo chmod -R 777 /var/ftp/write

Then modify the vsftp configuration file/etc/vsftpd.conf file

Add at the end

local_root=/var/ftp

Save, then kill the vsftpd process and restart the vsftpd server program.

Try uploading the file to the write directory, this time you can upload the file normally.

Let's look at another netizen's solution:

First of all, it depends on what user you uploaded, if it is an ordinary user:

1. To determine whether the target folder has read and write permissions,(of course, you must also have execution permissions, otherwise you cannot open the folder)

2 If you have all of them, then selinux is limited, and selinux can be turned off. (setenforce 0)

For anonymous users:

As above, turn off selinux, and then give the corresponding permission to solve

I'm here to talk about a solution that doesn't turn off selinux.

Run getsebool -a first| grep ftp (see what's in selinux about ftp)

allow_ftpd_anon_write --> off

allow_ftpd_full_access --> off

allow_ftpd_use_cifs --> off

allow_ftpd_use_nfs --> off

ftp_home_dir --> off

ftpd_connect_db --> off

httpd_enable_ftp_server --> off

sftpd_anon_write --> off

sftpd_enable_homedirs --> off

sftpd_full_access --> off

sftpd_write_ssh_home --> off

tftp_anon_write --> off

Next we allow_ftpd_anon_write allow_ftpd_full_access these two ON off

setsebool -P allow_ftpd_anon_write on

setsebool -P allow_ftpd_full_access on

That's OK, if it appears.

500 OOPS: vsftpd: refusing to run with writable anonymous root

500 OOPS: priv_sock_get_cmd

That is, you give 777 permission to the root directory of VSFTPD, change it to 755, and then create a folder in this directory, you can give 777 permission!

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