General :: Cannot Login To Server - Permission Denied (Public Key)
May 1, 2011
I am working currently on my server on an issue, I configured the SSH Deamon that only people who have a valid ssh-key can login on to the server, and kicked the password option. Now I've added a user account git. I navigate to his home folder created the folder ".ssh" and created in that folder the file "authorized_keys" I copied my public key in there. Now on my local machine I added that identity (via ssh-add) and I wanted to connect to my server. but when I'm trying to login myself I can't the only message I get is "Permission denied (publickey)."
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Sep 17, 2010
Currently I am having troubles getting my ssh key to work correctly. I have had a desktop crash which has been reformatted to use ubuntu. The key residing in id_rsa.pub has been copied over to the ssh server into the authorized keys of the given user. however When we try to login we get a "permission denied (public key, keyboard-interactive)" error. below is the debug option:
jv@ops-desktop:~/.ssh$ ssh -v jv@x.x.x.x
OpenSSH_5.3p1 Debian-3ubuntu4, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
[Code]....
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Jun 2, 2009
I followed instructions from here: [url]
Everything seems to be ok but if I try to login it says following:
I have tried with numerous clients and accounts but still nothing, I cant get past the login. What may be wrong?
Here is the log from account creation, could the last line be causing the problems?
I had some hassle with the last two iptables lines but once I took away RH-Firewall-1 from those lines iptables gave no error anymore.
I changed this: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT
To this: -A INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT
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Mar 24, 2010
I have trouble with rsa authentication:
I did create an rsa certificate with ssh-keygen using my root account on a client: ssh-keygen -t rsa -b 2048 no passphrase I did copy the rsa pub_key from my client to the server scp id_rsa sampleuser@sampleserver:/home/sampleuser/.ssh/authorized_keys
I did change the ownership to the "sampleuser" of the pub key file on the server: I trayd to connect:
ssh sampleuser@sapleserver
I get that: permission denied (public key)... I know I do smth wrong but I don't know what.
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Dec 8, 2010
when i logging with root then i saw message "permission denied" Then i changed root shell directory "usermod -s .usr/ root" but it says "permission denied" again. what is the default shell directory, or what can i do for change permissions.
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May 5, 2010
I have two computers. One runs unRaid NAS software which is built on Linux. The other is running XBMC media center which is built on Ubuntu. XBMC has a local folder (/home/kevin/.xbmc/userdata/Thumbnails/) that it stores thumbnails in. I am essentially trying to move this folder to my server, but XBMC needs to see it as local. I started by deleting the old Thumbnails folder and it's contents. I then created an empty Thumbnails folder on XBMC and I also created one on my unRaid comp (192.168.1.20/disk7/xbmc_thumbs/Thumbnails). On the XBMC comp I run:
Code:
chmod 777 Thumbnails
mount -t cifs //192.168.1.20/disk7/xbmc_thumbs/Thumbnails Thumbnails
It creates the mount and as long as I'm logged in as root, I can copy files to the XBMC Thumbnails folder and they appear on my unRaid server's Thumbnails folder. The problem is that if I log in as kevin (the user that XBMC runs as) I get permission denied errors. I've tried changing ownership of the XBMC Thumbnails folder to kevin via:
Code:
chown -v kevin Thumbnails
And it says it changed it, but if I check, the ownership and group both still show as root. I'm thinking that may be because now that the mount is made, it's showing the ownership of the Thumbnails folder on the unRaid server? Whatever it's doing I can't seem to change it and XBMC can't write it's thumbnails because of this.
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Mar 8, 2011
Unable to open pty: Permission denied while trying to login to vps node.
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Jan 9, 2010
I have configured samba server.My requirement was that the path which i have to share was /srv/www/htdocs.With this the shared path for developer user was /srv/www/htdocs/projects.
So in the smb.conf file i made the entries as following:
After that root user was able login to both /srv/www/htdocs and also project folder and developer was only able to login to projects folder.That was according to my requirement but now the problem is that when developer is trying to edit any file in projects folder he is getting error that you dont have permissions to change this file.But developer should be able to edit any files. What changes i need to do now.
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Dec 3, 2009
Since FC6, NFS became very finicky and seemingly causes servers to randomly denying mounts from some terminals but not others, with all exactly the same new FC installation and exactly the same hardware - crazy!. The only difference is hostnames of the terminals trying to mount NFS volumes on the server and I made sure that /etc/hosts on all terminals and servers contain each others ip addresses and hostnames. I always uninstall SELinux which is truly a huge pain in a corporate environment. Is there ANY way I can relax the NFS authentication on the server in order to make sure clients can mount volumes?
e.g. the following is encountered often, with sometimes crazy situations that clients can only mount nfs volum es from the server after I first boot the server and then ALL the terminals. It is painful as you might agree! Other way round, no go, client will not mount until server is booted and then client booted.
In this case I really prefer windows lackey security. It works. Never mind how crappy windows is, at least I don't have diabolical access problems on servers.. NFS used to be very nice about 6 years ago but truly sucks recently imo. /]# mount -o soft -t nfs nfsserver:/public /xfer mount.nfs: access denied by server while mounting nfsserver:/public
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Mar 1, 2011
I have a user (let's call him John) who is not able to list contents of several 777 directories even though it appears he has permission to.
Case in point, as root:
Code:
Code:
If I use ls -a or strictly ls as john, I can list the contents of the nss directory:
Code:
That says to me that I have an issue listing permissions. Fine, I don't really need john to be able to list permissions. I want him to have rwx access to /media/nss/ENG which as you can see from my listing as root shouldn't be a problem since the perms on that dir are 777.
I am able to CD into the ENG directory or any other directory or subdirectory in /media/nss that has equivalent 777 perms, but once in the directories I can't list the contents:
Code:
I can get anywhere and do anything I want under the media/nss folder as john, except listing files. I even tried using an ACL i.e.
Code:
Why this isn't working?
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Apr 12, 2011
I am trying to give an SSH user on my server permission to compile C exploit with gcc, and I have had no luck. Every time i try to run gcc i get: "sh: /usr/bin/gcc: Permission denied. Has anyone else had this problem with this ?
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May 12, 2010
I have a mount problem with a NFS server on Debian Lenny. No matter what I do, I cannot mount a directory from another Debian box on the same network.
The error the client gives:
The server reports:
But there it is, in my exports:
cat /etc/exports:
Doing a:
NOTE: this default has changed since nfs-utils version 1.0.x
Comes up empty (and it should not, right?)
There is no firewall inbetween. No access restrictions via the tcpwrappers.
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May 25, 2011
I am getting permission denied after su - <username>. I have checked the permission and did not get any error.
[root@NF-Provider-SOC /]# su - nfadmin
-bash-3.00$ cat /var/log/messages
cat: /var/log/messages: Permission denied
-bash-3.00$ pwd
/home/nfadmin
-bash-3.00$ which bash
/bin/bash
-bash-3.00$ crontab -l
cron/nfadmin: Permission denied
-bash-3.00$ id
uid=501(nfadmin) gid=503(nfadmin) groups=502(dba),503(nfadmin)
-bash-3.00$ tailf /var/log/messages
Cannot open "/var/log/messages" for read
Permission denied
and permission in home dir is 755.
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Apr 16, 2010
I have created a new partition
/dev/cciss/c0d0p2 8489 17709 74067682+ 83 Linux
I formatted it with
mkfs.ext3 /dev/cciss/c0d0p2
[code]....
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Jun 16, 2010
I installed proftpd on a new CentOS 5 server, yet when FTPing in (I can log in fine), the files and directories do not list and I get a "550 filename: Permission denied" error each time I try to "put" or "get" a file (I can tell that the file is there, though, because if I try to access a non-existent file, I get a "No such file or directory error" instead of the permission denied error).
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Nov 25, 2010
If I try to connect to 192.168.1.100 server, I get:
Code:
Unfortunately, I don't manage this 192.168.1.100 server. Am I correct, that sshd on 192.168.1.100 supports only publickey authentication because:
Code:
I have .ssh/id_rsa present. Any ideas, what might cause this "Permission denied (publickey)" issue?
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Feb 20, 2010
fresh install of ubuntu karmic server. fresh, vanilla install of openssh-server attempt to connect either via standard ssh, linux client or puTTY win32 client system (both on local LAN)
First connect is great. connection established.
Second connection (via multiple clients) screams that: "WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!" and since I have strict checking, won't let me continue.
So, i do a little
Code:
To flush it out (i have backups,).
Then i try again:
I get the typical "Are you sure you want to continue connecting (yes/no)?" and i say yes. at which point, i offer the password for the username in question and it flat out refuses: "Permission denied, please try again."
Ok, so i have even gone as far as do a complete rip and replace of the ssh server and it's config files, however this continues to loop and repeat.
So, question one: Why does my key change?
Question two: Why am i getting "permission denied" errors on subsequent connect.
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Nov 5, 2010
Short version:I began getting "out of space" errors on my soho server this week. I know I only had about 300Gi of data on the 640Gi drive. I can't find what's using the extra space. As the attached screenshots show, "sudo xdiskusage" finds a block of 223.7Gi with "permission denied" but sudo Disk Usage Analyzer doesn't see it. What is using the space, and how do I reclaim it?
Long Version:I first tried to figure something out using SSH and the df and du commands, but my command line knowledge is weak. I tried to log onto Gnome to use its console but kept getting booted back to the GUI login. After deleting some old files using Webmin, I finally was able to log into Gnome and use some GUI utilities. As you can see from the screenshots, "sudo xdiskusage" finds a block of 223.7Gi with "permission denied" but sudo Disk Usage Analyzer doesn't see it. The system behaves as if that block is real denying me use of that space.
I suspected the manner in which I've mounted the second HD for use as backup storage only might be the problem, but really have no clue how to confirm that. The system returns the same numbers regardless of whether the second drive is mounted or not.
I've attached the dmesg results in a text file
Computer Details
Ubuntu 10.10
4Gi RAM
1 640Gi HD mounted as /
1 640Gi HD mounted as /backup (used only by Simple Backup)
Running Server Apps: Samba, Apache, SSH, mySQL, webmin
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May 2, 2010
I just set up a storage server with NFS sharing. Everything work fine but, when trying to mount the remote partition on my ws, this is the issue:
/usr/sbin/start-statd: line 8: /sbin/rpc.statd: Permission denied
/usr/sbin/start-statd: line 8: /sbin/rpc.statd: Success
mount.nfs: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
I tried so to mount it locally :
mount.nfs: access denied by server while mounting localhost:/var/ftp/pub /mnt
I don't think it depends because of the permiss of the directory, and anyway it's 1777.
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Nov 23, 2010
When trying to mount samba share off of domain member server sysimage in Windows receive error "There are currently no logon servers available to service this logon request". When trying to mount.cifs from PDC to samba share on sysimage receive error "mount error(13): Permission denied".
PDC is ClearOS 5.2 named "dc0"
Samba file server is CentOS 5.5 x86_64 named "sysimage"
dc0 Samba version is samba - 3.5.5-1.1.v5.i386
sysimage Samba version is samba-3.0.33-3.29.el5_5.1.x86_64
dc0 is configured correctly to my knowledge, windows machines can join domain, domain users can log into windows machines, user directories are mapped properly, logon scripts run properly. sysimage ldap authentication is set up as shown in "Procedure 7.1.
[code]....
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Feb 1, 2010
I've got that vsftpd running on a ubuntu 9.10 machine. Although I cannot upload any file, I always get a "550: Permission denied"-error.
Code:
# Example config file /etc/vsftpd/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
[Code].....
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Feb 3, 2010
I'm trying to setup a network boot server and I'm having an issue with tftp. In the /etc/xinetd.d/tftp file, I added the "-v" (verbose) option to the server arg line so that i could figure out what was happening. When i looked at the /var/log/messages log file, it let me know that permission was denied to /tftpboot/nbi_img.
So, in short, my problem is that tftp isn't working because it doesn't have permission to /tftpboot/nbi_img. I can't figure out why. I stumbled upon a site where the user figured out a temporary fix to this issue and what he did was disabled the xinetd service and typed the following command:/usr/sbin/in.tftpd -l -v -v -s /tftpboot/nbi_imgWhen I do this as well, it works! but only until I restart and then I have to do that again. Is there a way to be able to fix that for good?
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Sep 22, 2010
Is it possible to SSH to a remote computer from within an SSH session? I'm connecting to my home server via SSH, and trying to connect out to my VPS. I know the key.ppk file works, as I can use it to connect directly from my PC. The output I'm getting is shown below:
Code:
# ssh -i key.ppk -v -l myuser myuser@domain.co.uk
(tried various ways of doing this)
Code:
OpenSSH_4.6p1 Debian-5ubuntu0.1, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to mydomain.co.uk [123.456.789.012] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0 .....
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
debug1: No more authentication methods to try.
Permission denied (publickey).
There's nothing I can see in the auth.log file on the VPS.
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Jan 23, 2011
I have created a basic ssh server and i haven't done any configuring to it other than to port forward port 22. i am trying to connect to it from a client computer (they are on the same router). i enter the command "SSH <IP of the server>", and it asks me for the password. i have tried "SSH <my user name>@<IP of client>", but it says permission denied.
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May 19, 2011
i can upload and download things from/to my ftp server but when i want to Overwrite a file it shows me that:
PHP Code:
error 550 server.cfg: Overwrite permission denied
What can i do i gave premmision to download and upload so whats the problem
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Apr 27, 2011
I'm sooo exausted after two days of fooling with this. The problem: Apr 27 17:29:21 mxkasib dovecot: lda: Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: Permission denied (euid=8(mail) egid=12(mail) missing +w perm: /var/run/dovecot/auth-userdb, euid is not dir owner)
Obviously, dovecot-lda, instanced by postfix, couldn't access the auth-userdb file because of permission. There are plenty of topics over the internet, the problem is really simple. Except for I've got all the permissions needed, or it seems to me so and I'm missing something. Here is some additional information:
[Code]...
I've given all the permissions I could imagine. It's even devil 666, and it still complains.
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May 1, 2010
i was trying to execute the following on Kubuntu.
Code:
echo 0 > /proc/sys/vm/vdso_enabled
But it says "permission denied". Probably I need root user rights. How to get it in Kubuntu?
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May 24, 2010
After upgrading ubuntu server to the latest version (according to apt-get) proftpd stopped working. When I try to execute proftpd I get the following message (when logged in as root or user with root privileges) :
Code:
Line 18 in modules.conf looks like this:
Code:
I've tried removing and re-installing proftpd, but this doesn't help
If I comment line 18 in modules.conf, I just get permission denied on the next LoadModule command...
Can I remove all modules? or is there a way of fixing the permission denied issue?
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Jan 4, 2010
i can't get cyrus mailbox created. what i get is only error:
cm user.test.test
createmailbox: Permission denied
if i try user without "lastname":
cm user.test
createmailbox: System I/O error
here's maillog message:
Jan 4 13:08:09 pigeon imap[21695]: login: host.domain.com [127.0.0.1] cyrus plaintext User logged in
Jan 4 13:09:12 pigeon imap[21695]: IOERROR: creating directory /mail/imap: Permission denied
[code].....
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Nov 26, 2010
I have a ubuntu server 10.04 with LAMP installed. I also have ubuntu 10.10 on a laptop and can copy files to the server fine. To keep my website uptodate, I usually use Filezilla without any problems. I have just installed Fedora 14 on an old desktop and set up "my stall" ok. The problem is that I cannot copy any files from Ferdoa to the server due to:-
Response: 550 Permission denied.
Error: Critical file transfer error
I have tried to change the directory on the server "/var/www" using chmod -R 775* and chmod -R 777*, but it makes no difference, the file transfer still fails.
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