Login or Register to Ask a Question and Join Our Community


UNIX for Advanced & Expert Users

Showing "permission denied" when trying to login in - Montavista Linux

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Showing "permission denied" when trying to login in - Montavista Linux
# 1  
Old 11-06-2012
Network Showing "permission denied" when trying to login in - Montavista Linux
Hello friends,

I have scratched my system and after that when I am trying to access the console via root login it's failing with an error message of "permission denied". I am able to access the other login, I am having only problem with root and some other user login. I am using an telnet session for this connection.

I strongly believe that this is something related to the file permission/group/ownership related issue ?? If any of you are expert in this area please do help me to find a solution. Your help will be appreciated.

Do you guys think telnet is disabled for some specific users, I have checked my /etc/passwd file and I haven't seen any nologin entry there Smilie

Thanks in advance Smilie
Last edited by fpmurphy; 11-06-2012 at 10:17 AM.. Reason: fonts removed
# 2  
Old 11-06-2012
Typically root login is only allowed from the console - not via telnet, ssh, etc.

You need edit /etc/securetty and add the appropriate entries.
This User Gave Thanks to fpmurphy For This Post:
sanoop
# 3  
Old 11-06-2012
...or just not do that. Typically you'd login as a regular user then su or sudo. This restriction is for a reason.
This User Gave Thanks to Corona688 For This Post:
sanoop
# 4  
Old 11-07-2012
fpmurphy Exactly. All the terminal names are already there in the /etc/securetty file. I am pasting some of the entries in the file. Do you think something else is causing the issue. Because I am getting permission denied for only two logins ( root and scadm login), with all other login I am able to enter the console.

That too after entering in the working login, I am able to enter in to the root using "su". I think the thing is going more tricky here.

Code:
# for people with serial port consoles
ttyS0

# for devfs
tts/0

# Standard consoles
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10

---------- Post updated at 05:23 AM ---------- Previous update was at 05:20 AM ----------

Corona688 Thank You. Yeah, that was working for me. I was able to login in to some other user and from there I am able to login to root using "su". Since I am having a active standby configuration, I would need direct root login to the console.
Last edited by Scott; 11-08-2012 at 05:21 AM.. Reason: Code tags
# 5  
Old 11-07-2012
Remote login (e.g. ssh) usually does not use tty terminals, but sth. like pts devices. You may want - despite Corona688's advice - to add some pts/n to your /etc/securetty file.
This User Gave Thanks to RudiC For This Post:
sanoop
# 6  
Old 11-07-2012
RudiC I have pasted some part of my security file. pts/n was already in the file. I am pasting the complete securetty file here. I am sure you will be able to find a solution for this.

Code:
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
console

# for people with serial port consoles
ttyS0

# for devfs
tts/0

# Standard consoles
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
tty12
tty13
tty14
tty15
tty16
tty17
tty18
tty19
tty20
tty21
tty22
tty23
tty24
tty25
tty26
tty27
tty28
tty29
tty30
tty31
tty32
tty33
tty34
tty35
tty36
tty37
tty38
tty39
tty40
tty41
tty42
tty43
tty44
tty45
tty46
tty47
tty48
tty49
tty50
tty51
tty52
tty53
tty54
tty55
tty56
tty57
tty58
tty59
tty60
tty61
tty62
tty63

# Same as above, but these only occur with devfs devices
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
vc/12
vc/13
vc/14
vc/15
vc/16
vc/17
vc/18
vc/19
vc/20
vc/21
vc/22
vc/23
vc/24
vc/25
vc/26
vc/27
vc/28
vc/29
vc/30
vc/31
vc/32
vc/33
vc/34
vc/35
vc/36
vc/37
vc/38
vc/39
vc/40
vc/41
vc/42
vc/43
vc/44
vc/45
vc/46
vc/47
vc/48
vc/49
vc/50
vc/51
vc/52
vc/53
vc/54
vc/55
vc/56
vc/57
vc/58
vc/59
vc/60
vc/61
vc/62
vc/63

# psudo terminals used by telnet
pts/0
pts/1
pts/2
pts/3
pts/4
pts/5
pts/6
pts/7

Last edited by Scott; 11-08-2012 at 05:22 AM.. Reason: Code tags
# 7  
Old 11-07-2012
What terminal are you using (check e.g. output of ps) when logging in as a normal user?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. OS X (Apple)

"Permission denied" when trying to SSH my iPhone though password is correct

Hi, I hope this is the correct section in the forum to post as I'm trying to SSH from my MacBook. I was looking to see whether ssh on my jailbroken iPhone 6s (10.3.1) still works fine and was following this old reddit guide. I installed OpenSSH&OpenSSL from Cydia and changed the password using... (7 Replies)
Discussion started by: hss1
7 Replies

2. AIX

SSH connection "Permission denied"

Hello, I tried to connect with root or any other user to AIX using ssh. It throws me error like Permission denied (publickey,keyboard-interactive). i don't know why!! and the PermitRootLogin is yes any help will be appreciated Thanks (7 Replies)
Discussion started by: moudmm
7 Replies

3. Solaris

"Permission denied" when changing IP netmask

hello everyone, I am new on unix systems. I am working with a Solaris 10 OS. When i try to change netmask on certain interface: I get: How can i enable permission for changing that ? I have administrator privileges. Your help is much appreciated. thanks, (13 Replies)
Discussion started by: pablod76
13 Replies

4. Linux

Showing "permission denied" when trying to login in - Montavista Linux

Hello friends, I have scratched my system and after that when I am trying to access the console via root login it's failing with an error message of "permission denied". I am able to access the other login, I am having only problem with root and some other user login. I am using an telnet... (2 Replies)
Discussion started by: sanoop
2 Replies

5. Red Hat

+ + in .rhosts is causing a "Permission Denied"

I have a user who has "+ +" at the top of his .rhosts file. He cannot "rsh NODE date" to a different box ( both are RHEL 5.4 ). If I remove the "+ +" then the "RSH" works. I have correct settings of node names/user in the .rhosts file. I even tried adding to the second box's... (3 Replies)
Discussion started by: rom828
3 Replies

6. Solaris

BSM auditing issues, need to audit "permission denied"

Let me preface with I am semi-new to Solaris. I work with it in the labs at work and that's about my extent (although I run Linux at home). Well, a week ago security comes around with updated requirements, some of which are the need to audit all failures. For the life of me I cannot get a... (0 Replies)
Discussion started by: mph275
0 Replies

7. OS X (Apple)

"Permission Denied" while modifying mounted files on MAC

Hi, I have two machines 1. MacOSx (Users --> userMac , IP - a.b.c.d) 2. FreeBSD (Users --> userBSD, IP- p.q.r.s) I want to modify some files of FreeBSD on my MacOS. So, I mounted the FreeBSD folder on my Mac as follows. $ sudo mount -o -P p.q.r.s:/usr/home/user... (5 Replies)
Discussion started by: akash.mahakode
5 Replies

8. UNIX for Advanced & Expert Users

EACCES "Permission denied" while open(2)

guest@ulidtko:~$ id uid=126(guest) gid=134(guest) groups=134(guest) guest@ulidtko:~$ ls -ld /home drwxr-xr-x 8 root root 4096 May 12 19:47 /home guest@ulidtko:~$ ls -l /home ls: cannot open directory /home: Permission denied guest@ulidtko:~$ cat /proc/mounts rootfs / rootfs rw 0 0... (4 Replies)
Discussion started by: ulidtko
4 Replies

9. UNIX for Dummies Questions & Answers

changing password with sudo user " permission denied"

HI All, I am using solaris i created a user adam and updated his permissions in vi sudoers file as follows adam ALL=(ALL) NOPASSWORD: ALL ........... when i create user by logging as sudo user . $ sudo useradd -d /home/kalyan -m -s /bin/sh kalyan sudo: not found ... (6 Replies)
Discussion started by: kalyankalyan
6 Replies

10. Shell Programming and Scripting

screen throws "permission denied"

Hi all, i've got problem in running a script in background... i have written a script, and i want to run it everytime i log in, but when i log off i want the script to stay (i watch not to run two scripts at one time in the script). so as a normal user i want to do: $ screen my_script & ... (6 Replies)
Discussion started by: miechu
6 Replies
Login or Register to Ask a Question