I have configured rssh 2.3 with openssh 5.8 on RHEL 5.6 64 bit to restrict the users to scp and sftp. When i try to sftp or scp it gives error connection closed. After long googling tried different solutions like add missing libraries, setuid to rssh_helper. I had full copy of /lib to /chroot/lib and /chroot/lib64 but no success. conf and log files are below for reference.
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I'm an OS X user that's just acquired a CentOS 5.2 server. The server contains a basic installation of CentOS 5.2 with OpenSSH already installed, which I use to connect to the server using OS X terminal. I have no physical access to the machine and if I somehow cripple OpenSSH I will need to pay a technician to fix the problem for me. So I'd like to get the instructions straight before I go in and mess around with the system.
I want to install a package that will allow me to add additional users so that they can upload files but not mess around with the system configuration. From searching on google rssh seems to be a viable path. So I'd like to go with that unless there's a better option.
I came across these tutorials: SFTP Setup for CentOS 4.5-5.x and How to: Restrict Users to SFTP and Block SSH Shell Access with rssh. But I haven't followed the instructions in either yet. I'm unsure if I'll be able to execute all of the steps remotely without compromising my root account's SSH access.
was trying to access the server through putty, it immediately closed connection.i tried this a couple of times and still the same problem.
View 2 Replies View RelatedI'm using Postgresql 8.4.2-2. I'm trying to remote into my server securely. I figure I could do so with ssh. Apparently I figured correctly, as per, [URL] and [URL] I setup the ssh tunnel. ssh -L 5432:serverip:5432 Then I setup pgadmin3 to connect as follows:
host: localhost
port: 5432
user: postgres
maintenance db: postgres
And I receive the following error:
An error has occurred: Quote: An error has occurred: Error connecting to the server: server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request.
I'm not sure what the problem is. I can connect with Code: psql from the cli after connecting to the terminal via ssh. So I know that I'm using the correct password.
I've setup a FTP server in OpenSUSE 11.1 with KDE 3.5.x. (Pure-ftpd) But when I connect with an user to the FTP server I can browse to all folders on the OPENSUSE system, how can I setup one folder for all users and restrict the FTP connection to that folder only??
View 1 Replies View RelatedWe have one FTP server. Users are uploding files to the perticular directory remotely. but today some users got below error message.
421 Service not available, remote server has closed connection.
(vsftpd service is up and running) What are the possible causes for this error and from where I should start troubleshooting?
I have FileZilla installed on this machine, and OpenSSH (with an open port 22) on another machine on my home network. When I try and connect, I get: Quote: Status:Connecting to 192.168.2.3... Response:fzSftp started Command: open "alphatwo@192.168.2.3" 22 Error:Connection refused Error:Could not connect to server
Which has left me puzzled as I have an open port. Does the username have to be defined somewhere? E.g. the machine acting as my SFTP server can be logged on to locally as alphatwo so that's what I logged in as (with the correct password). Is this correct? If so, does anyone have any ideas as to how I might rectify it? I want SFTP set up so I can copy PHP files from my laptop to /var/www/html/ on another PC (across the home network).
I can ssh to my Fedora 12 without any problem, but every time I sftp to it, it says "Connection closed" and then just kick me out. Is there any configuration I missed here?
I found the issue is that in .bashrc I have following line: bind '"C-a": "cd .. "' As soon as I comment it out, sftp start working. But I cannot explain it.
How would i go about restricting users to there home dir in sftp and in ssh so that they can not go poking about other dir and files thats above there home dir ?Operating systemCentOS Linux 5.4 Kernel and CPULinux 2.6.18-194.8.1.el5.028stab070.5PAE on i686
Also it will have to be a low resource usage as i dont have much memory on it
I have a problem between a jail root (so a group of users can access through sftp to Apache directory (var/www) an not get out of this directory.
1. I have the group 'sftponly', I need to access / var / www for sftp (read only)
2. On the other hand I need that user www-data (Apache) is the owner or at least have write permissions in the same directory (/ var / www)
The problem comes when the two needs together, as from what I read, to do jailroot in a directory is necessary for the owner is root and any other user has write permissions on it.
If along the jailroot with write permissions then attempt to connect to the client via sftp throws me the following error: "Error: Server unexpectedly closed network connection"
Permissions system User/group/Others doensn't work to me, so I tried it with ACL, but I have the same problem when I grant write permissions to the apache user.
Does anyone know how can I do for the user www-data can have write permission in the Apache directory and be able to create a user or group of users who are "locked"in this directory to enter sftp?
I'm a frequent user of the shared connection feature of SSH. Usually i have two or three connections open at the same time through the connection sharing feature, but sometimes when i try to start another i get the message "Shared connection to <server< closed". All the connection that are established through the connection sharing feature are still active and not closed, but when i try to create a new one i get that message.. i've even got that message when i have only had two connections through the shared connection feature.
I've tried to search google but it doesnt seem like anyone else has had the same kind of problem, does someone know why i sometimes get this error ?
i have a vsftpd server running well but i want to make/force all users to use sftp and not just ftp is this possible?
View 1 Replies View RelatedI'd like to restricting my ftp users to access 1 particular folder.
we have a root folder called /home everyone has aces to that so they can operate.
but then there is /home/config how can i restrict certain users from access /config folder, since this is containing sensitive files I would like for no one else but my self to be able to access it.
How to prevent a user sending a mail to a particular user in an intranet mail server?I tried with /etc/mail/access file but could not.
View 4 Replies View RelatedUsing CentOS 5.5. I have a handful of users that I need to have connect to my server via sftp and start in the same directory. for example, user1, user2, user3, etc.. will connect via sftp and upon connection will all be in the /some/dir/path/ftp-root directory.I know one way is to create these users all with the same 'home' directory, since by default a user starts in their home directory when connecting via sftp, but before just doing that, I wanted to find out if that is really the appropriate method to use? alternatives? Is there some setting on the sftp server end that could direct all users to one starting directory so that these users don't have to have the same 'home' dir? I'm using the sshd daemon that comes with CentOS 5.5 (with all current updates/patches)
View 4 Replies View RelatedI have configured the SFTP Jail for some of the users in my sftp server and which is hosted for my clients.i have one small issues and i need the help from experts. e /../jajil/etc/shadow file. can you please help me how to update the password in /../jail/etc/shadow file instead of updating in /etc/shadow file.
View 3 Replies View RelatedI am having trouble connecting to one of the VM's through ssh from base machine all of a sudden. All I get is an error : ssh_exchange_identification: Connection closed by remote host
--IP/Hostname crossed out --
[root@XX-XX02 ~]# ssh -v 1XX.1X.5X.1XX
OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008[code].....
Saying that the problem is only with ssh would be wrong as I can't seem to telnet or ftp it either. But I can ping it fine.When I try to login to that VM through console, it won't even let me login. The screen would flash for a sec and the same login prompt would reappear. I am not sure what exactly happened as it was working fine before.
OS version: CentOS release 5.5 (Final)
uname -a: Linux XX.XX 2.6.18-194.17.1.el5 #1 SMP Wed Sep 29 12:50:31 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
Just setup my postfix and trying to telnet localhost.
here it is..
telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
I wanna paste my /var/log/maillog but i don't know how, when i copy from putty screen it's only copied part of the log.
btw i found one similar problem here [URL] but the thread starter already lost the pastebin so i don't know how he resolved the problems.
I see this questioned asked a lot and figured this tutorialThis tutorial explains how to create an SFTP server which confines (or chroot) users to their own home directory and deny them shell access.
View 1 Replies View RelatedIs it possible to limit each user so that only one can connect via each username for ssh/sftp? I work with a small company where there aren't really enough of us to justify using a revision control system, but we don't want to accidentally step on each other's toes, so we'd like to try simply preventing more than one person from accessing a given domain at once.
View 15 Replies View RelatedFirstly I am new to red5 and not very strong when it comes to linux. I have had installed red5 on my dedicated server and going by the http://myIP:5080/installer demos it is all working fine. My problem is I cannot get it to work with my software being flashchat. I am not sure if it comes from me using the incorrect RTMP url and if so after trying about 20 or more ways of typing it in I always get the same error message "Connection Failed' or "Connection Closed" not to sure what is meant by Closed as to whether it's working but can't get in or what ever. I am after someone who can get this to work for me please and I am willing to pay for that service once it is working.
View 2 Replies View RelatedIs there software that is available that restricts access to ssh and sftp in a similar fashion as Chroot?
View 1 Replies View Relatedif i want user should`t have more than 20 sftp connections to a server,is there any way we can limit no.of connections to a particular user on the server using ssh configuration
View 7 Replies View Relatedsetting up an SFTP server on debian, all the way down through step 3, though I did not "Match Group" I did Match User as I only need 1 user to have access to the SFTP server(did not continue on to step 4 and beyond as they did not apply to me) Im getting the error:
connection closed by server with exitcode 141
I get this when trying to log in via filezilla. I actually only got the 141 error on the first attempt, any attempts after that just says "could not connect to server". Username and password authentication goes through, so it is not a login info issue.Im running Debian squeeze, and that guide was for Lenny, that shouldnt matter, I dont think.
In my case, it occurs intermittently when trying to connect using putty's command line client 'plink.exe' to a linux machine using ssh. For some testing purposes, a linux server is setup with 8K virtual ip addresses and the testing scripts will connect to these ip addresses through ssh using plink.exe. There will be concurrently 25 ssh sessions launched to the server. While it works for sometimes, it throws 'server unexpectedly closed network connection' error intermittently. If the same ip address is tried again manually, it works. While the ssh server is accepting connections, this error is thrown sometimes and unable to find out the reason from the logs. It is not that the ssh connection is completely blocked. It gives this error message while connecting to some of the virtual ip addresses but works some times.
The hosts.deny, sshd_config are tuned to allow the connections, allow more sessions etc.
I tried changing the sftpserver port but its not working, besides how can i restrict users from particular ips.Eg: users a can ssh from 192.168.*.*user b can sftp from 200.*.*
View 2 Replies View RelatedIs it possible to restrict telnet connection from remote to my server(linux -centos5)?
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Ex : [root@localhost]# telnet 10.0.0.33 80
Trying 10.0.0.33...
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In RedHat 4/5 How can i jail/restrict an sftp user to his home directory?
Can i do this without using rssh ?
I'm running an SFPT server which my clients logon to using an FTP client. at the moment each client has a user name and password.
Thus far to improve security I've disabled root login but an looking for futrhrt ways to protect it from attack, having researched using google some of the security features suggested prevent the FPT clients from connecting.
Questions:
1- what further things can i do to secure my server that still allows it to be usable for FTP clients?
2- specifically is it possible to use non login pre-share key authentication?
How i set up the server is shown here: [url]
Whenever I try to login via SquirrelMail into my account I get this error message:
ERROR: Connection dropped by IMAP server.
