CentOS 5 :: Unable To Use Su Or Sudo?
Mar 25, 2011
I am attempting to fix a non-production server for a friend of mine. His initial complaint was that he wasn't able to use su or sudo anymore. Upon researching I noticed that he set the owner/group of his entire server to his personal user vs root and what not. I have attempted to run rpm -setguids -a and rpm -setperms -a and it doesn't appear to do anything except to yell at me that i don't have permisions to change the file permissions to root. I am going to be heading over there later tonight and i'm going to try logging in locally as root and then run the rpm -setguids -a. If this doesn't work, is there any other way I can recover the Centos 5.5 permissions back to default? Alternately, is there a way I can reinstall CentOS w/o losing the stuff he has in his /home folder. It is all 1 partition so I was unsure if it would just overwrite what is needed or if it will overwrite everything.
View 3 Replies
ADVERTISEMENT
May 23, 2011
I am unable to use sudo and su - commands. check my output below:
Code:
ubuntu@user1:~$ su -
Segmentation fault
ubuntu@user1:~$ sudo visudo
bash: /usr/bin/sudo: Permission denied
[code].....
View 9 Replies
View Related
Sep 14, 2010
Install wireshark and added it to visudo. But wireshark refused to start in konsole
Code:
# sudo wireshark
(wireshark:7493): Gtk-WARNING **: cannot open display:
However, wireshark will start without problem when in root.
View 6 Replies
View Related
Feb 24, 2010
i am using ubuntu 9.10 .i recently installed vmware server in ubuntu. since during installation of vmware i gave default values the default username for vmware server is root. inorder to access vmware server i changed the root password in terminal. i gave the following command in terminalsudo password rootit prompted for new password and i entered the password. after that i accessed the vmware server using the username as root and password. it worked fine,i created a virtual machine and it worked fine.now the problem is when i restarted the system and login to vmware server i was unable to access virtual machines created previously. also now i am not able to use sudo command .the following message shows up. sudo: must be setuid root. may be this prob is due to the command i gave sudo password root. can someone help me resolve this prob and go back to my previous state.before when i used to give a sudo command it asked for my account password.
View 9 Replies
View Related
Oct 18, 2010
At the terminal prompt, I can't login using su nor sudo. I can only login as root at the dialog level. How do I correct this?
View 6 Replies
View Related
May 19, 2011
I'm running rhel6 64bit. Accidentally I ran % chmod -R 777 /etc and after that I have a problem to do 'su' or 'sudo'. When I did sudo it complained that /etc/sudoers has 777 while it should be 0440. I changed that and also restored right permission for:
-rw-r--r-- 1 root root 1966 May 19 13:41 /etc/passwd
-r-------- 1 root root 1161 May 19 13:42 /etc/shadow
-r--r----- 1 root root 3746 Apr 23 01:38 /etc/sudoers
Anyway it failed to 'su'. Then I restored back permissions on files in /etc/security and /etc/sysconfig. Still can't do 'su'. Note: I could login from console as root but can't 'su' or 'sudo'. when I do 'su' it gives error: Password: su: incorrect password
View 2 Replies
View Related
Aug 10, 2011
Unable to lock directory /var/cache/apt/archives/
Whenever I use sudo apt-get to install my apps in the terminal this pops up when its almost done downloading.
View 3 Replies
View Related
Sep 17, 2009
A few years ago I fellow admin showed me this command:sudo su - to change to rootIs this a 'best practice' method or a hap hazzard approach to system administration?I consulted with a senior admin and he frowned on this access to root.
View 3 Replies
View Related
May 5, 2011
I broke sudo when I wrongly edited a file in /etc/sudoers.d in vi(did not use visudo :-().I read that I could fix the same by rebooting into the 'Recovery Mode' by selecting the same from the grub menu.
However I'd earlier disabled the showing of the grub menu by editing /etc/default/grub. As a result I can't seem to go into recovery mode to fix my broken sudo.
View 1 Replies
View Related
Nov 26, 2010
When I try to launch something from terminal, it shows this error.
gksudo gedit /etc/hosts
Quote:
127.0.0.1localhost
127.0.1.1matt-laptop
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
My computer always had this name and I never had concerns related to his name. So, what's wrong now?
View 8 Replies
View Related
Mar 27, 2009
I hope I haven't missed this in another forum but was tough to search for.While administering my new centos 5.2 x86 server through SSH I am successfully able to issue
View 11 Replies
View Related
Oct 21, 2010
I am looking for gcc installation in CentOS 5.4. I cannot use yum install since not connected to internet. I tried to do sudo apt-get install build-essential but received the following error: sudo: apt-get: command not found How to install gcc in my Linix machine?
View 2 Replies
View Related
May 21, 2010
I am having a problem with Ubuntu 10.04. I was setting up network sharing with Samba. Set up went fine, then I decided to change the hostname.
Following instructions I found on the web, I edited etc/samba/samba.conf to reflect my desired hostname.
Now I have to use superuser to run synaptic or update center. I don't know what else I have "broken".
I would like to change my hostname, if I did it incorrectly for 10.04 please enlighten me.
View 2 Replies
View Related
Nov 4, 2010
Whenever I try to use the sudo command in the terminal I get the message unable to resolve host, then my computer name. Here's some command line output with some files which I think may be causing the problem. I have Operating Systems homework and need sudo
steve@steve-laptop:~$ sudo gedit /etc/resolv.conf
sudo: unable to resolve host steve-laptop
steve@steve-laptop:~$ cat /etc/resolv.conf
# Generated by NetworkManager
domain domain_not_set.invalid
search domain_not_set.invalid
nameserver 68.237.161.12
[Code].....
View 1 Replies
View Related
Dec 19, 2010
I made a Desktop User account. When I went on that account, it allowed me to execute sudo as if I was an administrator. I don't know what might be causing this. I do have ufw set up and blocking incoming connections. Do you guys know what might be at the root of this?Also, when I used sudo from the user account (which I shouldn't have been able to do), I provided the password for my admin account.
View 9 Replies
View Related
Jun 10, 2010
explain the difference between these two commands. I'm currently reading about changing your mac address and both of these commands show up a lot. They sound like the same thing to me. Is one better than the other, or do you need to use both to change your mac address?
Code:
sudo ifconfig eth0 down
sudo /etc/init.d/networking stop
View 3 Replies
View Related
Jan 2, 2011
I have a problem when I want to use su I get this error:Code:su: pam_start: error 26I have googled it so I found this topic (http://www.linuxquestions.org/questi...r-26-a-615024/) but it didn't really help me. There was a reply on that topic and his question was what the output of this was:
Code:
ldd /usr/bin/passwd
and
[code]....
View 4 Replies
View Related
Sep 16, 2010
A day ago I finally got around to upgrading the PackageKit installation that had been sitting for a week and a half, so I found a new upgrade for sudo available - the one that gives the sudoreplay command, I forget which version number it is exactly. When I try to use the sudo command I get this notice in my terminal:Code:Can't open /var/db/sudo/me/1: Permission deniedI didn't get it before. What do I have to do to make it open? I'm using SELinux in enforcing mode if that helps.
View 1 Replies
View Related
Jan 6, 2011
Kernel 2.6.21.5, Slackware 12.0
Code:
Code:
On the other hand
Code:
So, I do not understand why the notification "sudo: cd: command not found", considering cd is a bash built-in command.
View 3 Replies
View Related
Aug 9, 2011
When ever I have an issue with our LDAP server (which I was able to fix) we see the following errors in /var/log/messages and it causes problems with our services running on that box, e.g. httpd, nrpe, xinetd, etc. Aug 8 17:44:42 hostname httpd: nss_ldap: failed to bind to LDAP server ldap://serveraddress/: Can't contact LDAP server Aug 8 17:44:42 hostname httpd: nss_ldap: reconnecting to LDAP server (sleeping 64 seconds)... I am only wanting to authenticate SSH and Sudo and not services like httpd, nrpe, xinetd etc.
View 2 Replies
View Related
Jul 2, 2011
I have read a lot of questions from people wanting to take Debian (or some other distribution) and make its sudo command act more like the way Ubuntu's sudo does. I want to do the exact opposite, I want to make Ubuntu's sudo command act more like the sudo command from another distribution. ie I want there to be one root password
View 8 Replies
View Related
Jul 31, 2011
I'm trying to install my tvcard [url] on a freshly installed maverik minimal installation, i had no problem gettin the lib32ncurses5-dev package on lucid, but after i got maverik i cant seem to find it. i was on 64bit (sudo apt-get install libncurses5-dev)
View 1 Replies
View Related
Sep 7, 2009
I am using centos 5.2 with kernal version "kernel-2.6.18-92.el5" i cant play mp3 songs in any of the players provided..can u help me in installing "vlc" or any other versatile player..thnx in advance.
output of "yum list *videolan*"
yum list *videolan*
Error: No matching Packages to list
View 7 Replies
View Related
Nov 6, 2010
I have an i5 Thinkpad running Windows 7 64-bit. VT is enabled in the BIOS. I have installed vmware server v 2.0.2 but am unable to install Centos 5.5 x86_64 as a guest OS. The steps that I followed are as follows:1. Created a new VM, specifying RHEL 5 64-bit as the intended guest OS (per vmware documentation - Centos is not available as a selection2. Downloaded all 8 iso files for Centos v5.5 64-bit3. Modified the CD/DVD drive to 'connect at power' and use an iso with the path pointing to the x86_64 iso 1 of 8When I power up the VM, the console window displays 'ISOLINUX 3.11 2005-09-02 Copyright (C) 1994-2005 H. Peter Anvin' and nothing else. The installation splash screen never appears. As a test, I downloaded the first of 7 iso files for the 32-bit version of Centos 5.5 and pointed the CD/DVD drive to that iso. In that case, the installation starts as expected. I would really like to get the 64-bit version installed and running.
View 3 Replies
View Related
May 30, 2011
i am not able to port 8080 on my CentOS VPS server.I have followed all the instuctions as mentioned on iptables wiki page.Also I am able to telnet my ip address and port number, But can not access from browser.
View 6 Replies
View Related
Aug 8, 2011
I have two Centos 5 servers one running Asterisk with PHP installed and another sever running as a MySql Database server, at the moment when I try run simple script to see if I can connect to the remote server I get the following error.Quote:Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
View 2 Replies
View Related
Jun 4, 2009
So far, I've been able to get my Box (Centos 5.3) authenticate users through LDAP. My next plan was to automount their home directory from our NAS device.But I'm struggling getting autofs talking to the LDAP Server.My Config Files:
/etc/ldap.conf
[root@tmplt_CentOS-5 ~]# egrep -v '^#|^$?' /etc/ldap.conf
base ou=intern,o=zde,dc=simiangroup,dc=com
[code]....
View 2 Replies
View Related
Nov 18, 2009
I've Got one Problem with My Computer soon after success installation of when the boot-loader ask me to choose OS at CENTOS 5.4, multi boot boot-loader if i choose windows then computer tries to boot windows but fail and give the error message that there is a problem on reading the hard disk, But when i restart it and start with LINUX then computer start successful with no error message, now i do not know what to do cause i need to use Windows and all my programs are in windows..
View 1 Replies
View Related
Nov 12, 2009
I'm running out of ideas (and of forum threads to try), so here is my problem: I want to create a web page using perl to configure a router. The router is going to be used to limit bandwidth to some IPs and also to block some IPs. I'm using Centos 5.3 which comes with httpd and suexec pre-installed. The command I want to use are "route add -host ..." and "tc filter ...", these commands can only be run as root.
[Code]...
View 2 Replies
View Related
Apr 9, 2010
I was trying to edit a file requiring root permissions, so I used sudo. I typed the root password and it failed. This happened three times, and the process was ended. I then logged in as root (su) and was able to navigate to the file and make changes as root. Am I missing something? How would I edit the sudoers file such that this password would work? Or is there another way to log in to the sudo group to make these changes? How do I set sudo passwords?
View 1 Replies
View Related
