Server :: File Permissions After FTP Upload?
Jun 9, 2009
I have just started using linux. I have setup an ubuntu apache2 server. It has been running brilliantly and I am highly impressed with the Linux system. My box is an HTTP server and I am hosting a website on it. I have VSFTPD installed and functioning as my FTP software. It has worked fine so far but I have been a bit annoyed that I have had to set permissions for each file I have put on there.
Now I have run into a serious issue with the permissions being set to 600 and I really need them to 755 because I am running an automatic upload for a webcam and the Image can't be accessed due to the automatic permissions of 600 being set to the image. My extensive windows background tells me that I need to apply the correct permissions to the WWW folder and get the files to inherit these permissions automatically.
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Feb 24, 2011
However, configured a website on a dedicated server using WHM/cPanel. The site was uploaded using the master account for the website.
The security issue is public users are able to upload files on to my server via the website. They could even access the root and execute whatever they want on the server.
I have consulted with 2-3 Linux experts. According to them, the PHP user has rights to execute anything on the server or upload & store files in whichever folder they want.
Can I protect my folders to avoid file uploads via the website. The application has security vulnerabilites. However, I want to prevent hackers to enter my site until the vulnerabilities are fixed.
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Mar 8, 2011
i have apache server running on my laptop. i am trying to upload files on it. i tied from terminal first connecting to server by ftp and then put but i am getting an error
Code:
vivek@NEO:~$ ftp localhost
Connected to localhost.localdomain.
[code]....
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Sep 29, 2009
After few hours working I can connect to ftp.And download files from the server.But I can not upload file or create directory.I checked my configure file several time could not figure it out.
# cat /etc/vsftpd/vsftpd.conf
anon_world_readable_only=NO
anonymous_enable=NO
[code]....
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Jun 28, 2010
I'm configuring a new public mail server running Centos 5.5 and Sendmail 8.13.8. I would like that the sendmail configuration is correct. The server will handle many domains using Virtualmin. Everyone can send mail only if authenticated, which I already tested.
How can I upload configuration file? I receive an error if try to upload a zip file.
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Aug 15, 2011
I need to upload a single file to FTP server from Ubuntu. This operation should be done in a script (in non-interactive mode). What is the right syntax for ftp?
I'm trying this, to no avail:
$ ftp -u ftp://user:secret@ftp.example.com my-local-file.txt
ftp: Invalid URL `ftp://'
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Feb 12, 2010
One of my user wants to be able to upload file via browser to the server. For that, i need to grant apache read and write access to a folder. How much secure is allowing apache to grant complete read and write access to a folder ?
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Mar 30, 2011
vsftpd 2.3.2-3After user uploaded a file it has -rw-------(0600) permissions. Of course user can change permissions manualy to any he likeBut how to set for example 0700 by default?
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Mar 17, 2011
I'm running Ubuntu 10.04 LTS Using sftp, is there any way to force particular file permissions upon upload? I want the permissions on all files uploaded via sftp to be 664.
I've searched around and cannot find an answer. Many people ask similar questions and many responses recommend using umask, but as far as I understand it, umask is just a bit mask--it cannot be used to set permissions.
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Apr 26, 2011
I've got used to using the ftp command from the terminal, which is useful, especially with macros. But it requires user input, and what I want to do now is upload a specific file to a server, once I've finished working with it every day. It's the same file every day. II would like to be able to do this semi-automatically: I just give the command and it connects to the server and uploads the file. (I will probably want to encrypt the file before uploading it.)I don't know how I could use ftp without any user input: I want it to be automatic.
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Jul 6, 2010
I have a few FTP users on my linux server(running vsftpd). They all have their own directory and can upload and delete files in that folder.Now, I was wondering whether it would be possible to create special permissions/rights for users. For example, I would like to make it so that certain users could not upload .exe files, or I want a certain user to only be able to upload image files (gif, jpg).
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Mar 16, 2011
Trying to setup a file server for a small group of users and I am in need of help with file permissions with Ubuntu Server 10.10.
I have a single share mapping (ex /media/hdd1/share1). There are several folders that everyone will need read/write/edit permissions and there will be a few folders that all users will need read permissions and a couple of users will need read/write/edit permissions.
I have tried several things and as long as I create the folders/files through ssh using sudo, the permissions are fine, but when the users create file and folders through their computers (mixture of Windows and Mac) that user becomes the owner and no one else can write or edit those files.
I am using SAMBA and though it was a config issue with that but I logged each user directly into the server with the same issue.
I tried sudo chmod 777 /media/hdd1/share1 but all newly created files have the above issue.
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Feb 3, 2010
I'm having an issue that I've seen before on other OS's (Solaris), but I'm coming up blank on solving for an NFS mount shared from RedHat I've googled this, and looked through all the FAQs and mail lists I can find.
The issue is this:
Whenever a new file is created from an NFS client to an NFS mounted file system, the group and world permissions are being stripped such that any new file created ends up with 0600 as the file permissions. On the server, I have tried various sharing options (all_squash, anonuid, anongid, no_acl) with no luck. I've looked at the underlying mount point ownership and permissions, checked the file system acl's (getfacl...they match the visible file system), and set the custom SELinux (not mine) config to permissive. The file system is on an LVM partition, and has an SELinux group assigned in /etc/fstab. I've unmounted it, and performed a vanilla mount (no options). No amount of trial and error is working. Any file created by any user on an nfs client machine creates files with 0600 permissions, and local users on the nfs server create files with permissions based off their umask settings. I originally thought it was due to mismatches in permissions from Windows to Linux (The server also NFS shares to Windows 2K boxes using hclnfsd (PC/NFS)), but I confirmed the same issue between RedHat systems.
One thing I'm wondering from my reading. It's mentioned in many places that ownership should be root in most cases and not some other user. This entire file structure is owned by a user that is ONLY local to the server box (long story, but the box is isolated....no DNS and only local users and settings).
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Mar 19, 2011
I have set up a computer to use as a file server using Samba. I attached a 1TB hard disk to it and had the system to mount it automatically. I have 4 user accounts which will be able to access this network share. An administrator account is called "server". I'll call them user1, user2 user4. This is the folder structure:
+-/mnt/FILES
+-BACKUP
backup files (accessible only to "server" user)
+-MUSIC
music1.mp3 (read only files for all users)
music2.mp3
[Code]...
I don't know which groups I should create. I'm having a hard time setting file/folder permissions. And I wanted to know how to set Samba so that it won't ask for a password when accessing public/group files, but asks for it when accessing private user files.
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Aug 25, 2010
I'm working on a remote Ubuntu 9.10 server, which is accessed via VPN. I installed Joomla, but had difficulty uploading new components, which I traced to a file permissions problem. I used FileZilla to FTP onto the site and tried to make the chmod changes I needed, but the commands kept failing. Eventually, I contacted the sys admin and told him I thought that there was an ownership problem with the directories. He checked and told me that I was logging in with exactly the same user name and password that he was using (it's not a live system currently) and that he could make chmod changes without any problems. Because all my attempts were still failing, he eventually did the following:
chown -R administrator:administrator /var/www
/var/www is where all the Joomla files are stored and Administrator is the user name.Now I find that when I run a chmod command in FileZilla, the server reports that it worked (see below):
Status:Connected
Status:Retrieving directory listing...
Command:CWD /etc
[code].....
However, if I go back and check the tmp folder permissions, I find that they are still set to 777.This still looks like an ownership problem to me, but I don't understand why the server seems to think that the chmod changes are working, when they aren't.
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Feb 7, 2010
Don't ask me why, but I need to back up a website with complete structure to a windows machine (so no tar/gzip - just an identical copy). I'm experienced with rsync, so I thought to do it that way. However, in the process I'm bound to lose my ownership/permission settings for each file and that will give problems when placing back certain files. Is there a way to either:
1. save those settings on a windows machine?
2. have an easy way to save the filetree with relevant information and a shell script to attach the info back when uploading files again?
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Jan 25, 2010
I have two NFS mounted dirs that the users want specific permissions set upon creation of dirs/files, independent from any other machine on the network.
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Sep 15, 2009
Having set up many windows servers with complex permissions on shared folders, I now have to do the same in Linux (and I'm such a noob to Linux) I understand that each file/folder is assigned a user + group, and that the rights can be set for the user, the group and global (aka everybody else) My challenge is this, inside my shared folder there is a folder that should be RW to some users, READ ONLY to others, and not accessible at all to the rest of the users. (lets call the folder MyFolder ) All 3 groups have more than 1 user, so they have to be groups (right?) How would this model work in Linux ? If there is no other way, I guess I can nest the MyFolder in a folder that has permissions to allow all users that may access MyFolder, and block the rest, then on MyFolder, set owner group the RW users, and set global to READ ONLY.
Ps : The server I'm setting up runs Debian Lenny, files will be accessed from windows workstations using samba.
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Dec 4, 2009
I was working on a shell script to change the permissions of large directories and subdirectories because of an exploit discovered in the programs that run in those said directories that allow a client to upload and download files to the server. Loan behold I accidentally added a space and had something along the lines of "chmod -R 770 ." run on / logged in as root.
Yes, it was an incredibly noob move on my part, but nothing ventured nothing gained. I am surprisingly calm about this. I tried sliding in my CentOS installation disk and "Upgrading" CentOS but that only made it worse, beforehand I made everything owned by root so I could at least log into GNOME. This does not work for obvious reasons, namely having to change the permissions back for every user and every group, which far beyond a possibility.
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Jul 30, 2011
I have Ubuntu server with Apache 2, PHP, and various DBMSs running in VirtualBox on my Mac host for my web development work. To easily create/edit the files I'm working on, I mounted a directory from my Mac host via the VirtualBox shared directory feature to /var/www/. Every file I create on my Mac host has the following permissions on the on the Server: -rw-r--r-- 1 root root 6 2011-07-30 01:27 test.The problem is that most PHPscripts/frameworks/etc.need write access to some files.It is extremely annoying to have to chmod every new file/directory that needs write access.Is there a way to set the correct permissions for the files/directories automatically?
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Oct 16, 2010
Finally I managed to install my printer/scanner drivers.The last thing I need to do is to add the following two lines to 40-libsane.rules (which is a read only file):# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes".How can I change permissions for this file or add these lines without changing permissions?
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Mar 23, 2010
I just installed Fedora12 in a Core i3 machine... everything looks fine, but I have a huge problem... every time I upload a file (using ftp or sftp) some wier characters are included inside the file... for example.
[Code]......
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Jul 26, 2010
I am testing my ftp server configuration.Anonymous download works , however anonymous upload does not.I am getting the following error message from both Windows and Linux 5.4clients : 553 cannot create the file.And i am running Fedore 12.
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Jan 8, 2011
i have been trying to complete the following project1) Configure a FTP server where we can upload and download files.........2) server must run at 9 pm & stop at 9 am automatically ............although the first task was easy ,i have no idea how to accomplish the 2nd task(not to mention I'm a new user)
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Dec 16, 2015
I am trying to upload some pics on my Facebook account using Firefox. When I click on Facebook's file upload icon, Firefox bring up a 'File Upload' window. I noticed that smaller image file is previewed on the lower right hand corner, while bigger image file is not. Is there anyway I can change this behavior or maybe change what Firefox is using to browse my files?
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Nov 25, 2010
I've setup a Lamp Server for Testing, The Lamp Server is Up & Running on CentOs 5.5
I am now trying to setup a VSFTP server where local users can upload files to there home directory so that Apache can serve web pages straight from the directories of system user home/accounts giving users the ability to run their own web sites which are hosted off the main server [tutorial here: [url]
So far i have been able to serve/display index.html files from the users home directory [url] but so far i cant upload files to any user home directory, every time i try to upload a file with filezilla i get this error message: 553 Could not create file. Critical file transfer error
I have searched online for similar problems like mine and so far i've tried alot of the solution but none seem to work. I'm confused, dont know where i went wrong, i put the users in a group called ftpusers and here are the permissions on the users (test, ftpuser & testftp) home directory. have a look an tell me where i went wrong :(
Also the root directory where the web pages are served from is called public_html here are the permissions
Here is my vsftp.conf file can someone check it to see if i made any errors in there:
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Jul 12, 2011
i am trying to upload a file with cgi. I have an html code like below :
<table class=upload>
<form method='POST' enctype='multipart/form-data' action='upload.cgi'>
<input name=upfile type=file ><br>
<br> <input type=submit value=Press> to upload the file!</form>
</table><br>
I am trying to get the file with upload.cgi and execute a linux command in linux but i do not know how to. I use C code for that. Can you help me,please? How can i know the file from html in cgi C code?
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Jun 13, 2010
have setup a LAMP server with ubuntu 10.04 server edition x86 for my study in VMware Workstation 7.1 For a assignment I had to make a php script that would load a file up to the server and set the name in a mysql database. According to the book the server should set the image in a cryptic folder in the /tmp/ folder.
This isn't working and i also try'd locate and find to find the image i uploaded. I checked the php.ini and file uploads were on but no folder so i set that one to /tmp/ but still no images. Can anyone help me with enabling this function?
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Jun 23, 2010
i used fedora 13 and I have facing problem in file uploading using move_uploaded_file() in PHP5.3..2 (latest). Error is.
Warning: move_uploaded_file(Security-HOWTO.pdf): failed to open stream: Permission denied in /var/www/html/test/test.php on line 7 Warning: move_uploaded_file(): Unable to move '/tmp/phpnQjOBe' to 'Security-HOWTO.pdf' in /var/www/html/test/test.php on line 7
i give 777 permission to test folder and html folder also. pdf file is 427.8 KB in php.ini file_uploads is on (local and master both value) safe_mode is off (local and master both value). i used copy command to also but same error occur.
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Jul 21, 2011
How can I upload and delete a file? :
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