Server :: NFS Permissions Changed?
Apr 8, 2010
I have an NFS server on Windose Server 2003. I use it to back my Linux/Solaris databases up to. I mounted the NFS share on the Linux box. I was testing the permissions to it, and accidentally did a chown sybase:sybase /OLBackupOLBackup is the root directory of the NFS share. When I did the chown command, it changed the permissions on the share. Now it seems that linux is controlling the permissions. In windose I cant add users/groups. How can I remove Linux from owning the permissions. Im not sure if this is a windose issue or a linux issue, but figured I would start asking here first.
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Jun 24, 2010
I recently got a T-Mobile Tap and I've been trying to connect it via USB to my laptop running Lucid.When I open up the icon that shows up on my desktop after connecting it, I can't run the setup files inside. It says: The file '/media/HUAWEI/checksetup.exe' is not marked as executable. If this was downloaded or copied form an untrusted source, it may be dangerous to run. For more details, read about the executable bit.When I try to change the permissions from ready only, I get: Sorry, could not change the permissions of"checksetup.exe": Error setting permissions: Read-only file systemCan I tried calling T-Mobile but they said they don't troubleshoot with Linux. They said it's an "older operating system".
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May 9, 2011
just be aware of this in 13.0 and previous, assigned user numbers begin at 500 by default. in 13.37, they begin at 1000. this is especially important if you have a separate drive or partition mounted as /home and you want to keep your /home data under the same user name while migrating to 13.37 (and like me are keeping a dual boot while making the transition).
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May 10, 2011
I've made a really critical and simple mistake and now I am trying to recover my computer. I accidentally logged into root and was trying to change permissions for the current directory with "." but instead used a "/" which started changing permissions of everything from / recursively. I quickly realized the mistake I made after it started and aborted the process by pressing ctrl+C. However I know many things are still not right because, even though I tried to reboot and change the permissions back to 0755 from the recovery mode root console. I still get errors when gnome tries to start..Here is the exact error I am getting. "There is a problem with the configuration server (/usr/lib/libgconf2-4/gconf-sanity-check-2 exited with status 256". I'm pretty sure because of the way I aborted or because of the time the filesystem was running with 644 permissions, some amount of damage was done. Any way to recover it to normal? Or is there a way to recover it from the Ubuntu CD?
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Sep 28, 2010
I changed the permissions of /etc/sudoers trying to make it writable using following command:
sudo chmod o+w /etc/sudoers
and now when i try to use the sudo command i am getting the following error:
/etc/sudoers is mode 0442 should be mode 0440
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Feb 23, 2010
I have a recently setup my first linux server (hardy) and am having problems with the permissions for a log file being changed. I believe this is caused by syslogd, but am not sure how to correct it. Bacula will report it is unable to start a backup because it is unable to open the log file (/var/lib/bacula/log) "permission denied". After changing the owner from syslog to bacula, the backup will resume. However, the following day I encounter the same problem because the owner of the log has been changed back to syslog.I see where the permissions for logs are altered in sysklogd, but I am not certain how to make bacula exempt or if this is the right approach.
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Aug 12, 2010
I wrote a C++ program that uses serial port in fedora. Since normal user has no permission to read/write to /dev/ttySx, the program doesn't work. if I changed the permissions using chmod in su, it will works for that session. When restarts the permission changed to default again. So what to do a normal user program to access /dev/ttyS0?
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May 23, 2010
I did a clean install from Ubuntu 09.04 to 10.04 and restored my files from tar.
Everything worked fine until I tried my weekly rsync backup.
The permissions seemed to be causing problems, so I recursively changed all the permissions in my home directory:
Code:
~/Documents$ sudo chmod -R 644 /home/wolf/
[sudo] password for wolf:
chmod: cannot access '/home/wolf/.gvfs': Permission denied
So now all the directories and files have read permission for everyone:
Code:
~/Documents$ ls -A
ls: cannot open directory .: Permission denied
~/Documents$ sudo ls -lA
[sudo] password for wolf:
total 80
drw-r--r-- 2 wolf wolf 4096 2010-05-22 20:45 career
drw-r--r-- 23 wolf wolf 4096 2010-05-02 17:17 computer_languages
drw-r--r-- 2 wolf wolf 4096 2009-08-09 23:29 .ecryptfs
drw-r--r-- 21 wolf wolf 4096 2010-05-02 17:23 misc
-rw-r--r-- 1 wolf wolf 27298 2010-05-23 13:01 next.odt
drw-r--r-- 3 wolf wolf 4096 2010-05-23 15:46 PC_maintenance
drw-r--r-- 5 wolf wolf 4096 2010-05-08 01:43 software_projects
Now I can't even look at my own directory:
Code:
/home$ cd /home/
/home$ ls -lA
total 20
drwx------ 2 root root 16384 2010-05-07 01:01 lost+found
drw-r--r-- 42 wolf wolf 4096 2010-05-23 15:35 wolf
/home$ cd /home/wolf
bash: cd: /home/wolf: Permission denied
/home$ sudo cd /home/wolf
[sudo] password for wolf:
sudo: cd: command not found
/home$
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Oct 25, 2010
I recently upgraded from Lucid to Maverick, and I noticed that a new error message caused by a "cp" command call, including the hard links option. Fortunately, I kept the last Lucid kernel (2.6.32-25), so I could check the different behavior with booting successively on each kernel. Here are my configuration files:
On the server (192.168.1.2):
/etc/fstab :
UUID=... /mnt/Backup ext4 defaults,errors=remount-ro,relatime,async 0 2
/etc/exports :
[code]....
If I check permissions of /net/Backup/Folder2 from the client, I get :
owner = nobody (Create and Delete files), users (Access files), others (Access files)
cp -alR /net/Backup/Folder1/* /net/Backup/Folder2
- under kernel 2.6.32-25: no problem
- under kernel 2.6.35-22: all the subdirectories are created, but all empty; moreover, I get as many messages as number of files from the source:
"cp: cannot create the link ...: operation not allowed"
I can copy manually any file to /net/Backup/Folder2 from the client. Why the behavior has changed from kernel 2.6.32-25 to kernel 2.6.35-22 ? Should I modify the permissions or the way the mount is exported with options like "(no_)root_squash", "all_squash", or "anonuid", "anongid" ?
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Nov 26, 2010
I'm using rhythmbox and a classic ipod. A couple of times I have managed to write podcasts to my ipod. I'm not sure how I did it but it doesn't last. I have tried lots of random things from forum posts. When I try to change permissions in nautilus they change back straight away. I have my name as owner and group. I have the Lynx Ubuntu OP.
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Jun 21, 2010
One of our client was complaining that their server was down and mysql and apache services were down. The server is Ubuntu 8.04. When we checked, the permissions of /etc/init.d/mysql and /etc/init.d/apache2 were changed to 644 from 755. How could this be possible?I need your valuable suggestions on how can i monitor whether any malicious intrusions or scripts are running.
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Feb 2, 2010
Something has changed all my file permissions to read only and when I try and change them back it wont let me. Is there something I can do i Nautilus to correct it?
It even effects the waste basket-all the stuff in there is now read only and when I delete items I get a file operations window, which comes and then goes like its deleted them, but they re still in the waste basket, doesnt show an error message like it does if I try and move any other file.
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Dec 23, 2010
I accidentally changed my user permission while setting up a new user account and am now unable to access the "system" on the panel to change things back. I've just spent hours setting everything up and downloading and hope that I don't have to go through all of that again.
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Nov 25, 2010
the permissions for my home directory were accidentally changed from 'access files' to 'create and delete files', and I changed them back, but ever since then I am not able to change any preferences/settings at all. power management, themes, panels, emerald, anything. my user account is supposed to be the administrator, and all the user privliges are checked. how to get control of my computer back?
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Nov 9, 2010
i want to know what is use or benefit of using s and t permission?i have used them but could not understand its uses.please explain me with suitable example.Also tell me about umask command to flag on s and t.
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May 1, 2010
On installation of my OEL (Oracle Enterprise Linux), I've made a mistake, and set the date and time wrong. It's pointing to a date far in the future. So I change the date (and time), all looks OK. But when I boot, all is back to the same date (in 2015). I'm running this OS in VMware, I don't know if this issue relates to VM or not.
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Jan 24, 2011
Someone in my dept rather stupidly changed an IP of a webserver, and ever since we changed it back we cannot mount 3 NFS drives.
The Error
Code:
HTTP1:/etc# /etc/init.d/networking restart
Reconfiguring network interfaces...if-up.d/mountnfs[eth0]: lock /var/run/network/mountnfs exist, not mounting
if-up.d/mountnfs[eth1]: lock /var/run/network/mountnfs exist, not mounting
done.
I have removed that lock file and tried a
Code:
mount -a
but it just hangs?
The FSTAB hasn't changed at all, and the other web servers can mount to the NFS share fine. I have tried alot, removing the lock file and rebooting etc but no luck. Debian Lenny.
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Jan 5, 2010
I am trying to install OpenSwan VPN but get the following [FAILED] errors. I also changed the redirects but it still reports them as failed?Quote:
[root@localhost /]# /sbin/sysctl -w net.ipv4.conf.all.accept_redirects=0
net.ipv4.conf.all.accept_redirects = 0
[root@localhost /]# /sbin/sysctl -w net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.all.send_redirects = 0
[root@localhost /]# ipsec verify
[Code]...
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Aug 23, 2011
I use a PHP IDE that has no built-in ability to upload a project to a site. So, I'm looking for common easy to use tool for Linux that would able to upload modified documents to the server instead of uploading of the whole site. I also accept shell scripts that would be able to do this.
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May 16, 2011
I just tried changed the port that apache runs on from 80 to 8080 (I need port 80 for a difference service so I am changing the apache port). After doing this I load 127.0.0.1:8080 in a browser and get a 404 error generated by apache, if I change it back to 80 it works fine.
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Jul 31, 2010
We have a Wipro Net Power 8552 server on RAID 5 with Linux Advanced Server. The Databse is Oracle . Every time the reocovery is made the block corruption error gets changed. There are four hardisk in the Raid with 18 GB capacity of Quantum make. I want to make sure if any Utility is there in Linux to check the Harddisk if any Block corruption is there or Not.
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Aug 9, 2011
I've been using dhcpd for address assignments to PCs for a very long time with no issues. I recently upgraded from lenny to squeeze and now dhcpd seems to have new behavior which I can't seem to change. Here's what I want to do. First, I have a simple situation and don't want to get involved with dynamic DNS updates. I have host statements for each of my PCs and a range statement for cases where I install a new device and don't yet have a host statement for it. Previously, I could discover the ethernet address for the new device from the dhcpd log and add a host statement with an address of my choosing for the new device.
I'd then restart dhcpd and do something like reboot the device or issue an ipconfig /renew statement on the new PC. What would happen is that the old dynamically assigned IP address would be NAKed and the device would do a DHCPDISCOVER, etc. and get the new IP address I specified in the dhcpd.conf host statement. In squeeze, this no longer works. The client asks for the old address it got dynamically and the server just says yes. I can't seem to find a way to get it to NAK the dynamic address and use the new address I've specified in the host statement. I'd appreciate any enlightenment on how this is now supposed to be done. Here's my simplified dhcpd.conf file:
authoritative;
log-facility daemon;
ddns-update-style none;
[code]....
Note that the address here was assigned based on a previous range statement and isn't consistent with the above config file.
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Sep 1, 2011
I assigned a static ip to my Ubuntu Server machine and it cannot access the web now. It can access anything on the LAN. The other two nodes on the network (one wifi one hardwired) can both access the web just fine.
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Mar 6, 2010
i recently changed my broadband provider and since then i havent been able to connect to the internet. I have configured all the settings on my laptop,(ive got puppy linux 4 on it). All the settings say i have a valid connection to the wireless connection and that its recognised the new provider but when i try to access the internet i get the page that says UNABLE TO CONNECT TO SERVER and it also says that i need to check my network connections etc etc. Ive done all that and it appears that i have everything in the right place. SO WHY wont it connect.
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Mar 14, 2011
I did something silly and changed my root user access for mysql access to Any from localhost using webmin. I get an access dented when i try to open up the mysql editing page on webmin. Can any of you tell me if there is a way to change it back to hosts=localhost I am using webmin 1.5.30 on Centos 5.5. I am hoping I can change it by command line or if I can access the config files and change it that way?
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Jun 10, 2009
Server has DQ35JO board, 8GB memory, multiple SATA hard drives. It was happily running Fedora 10, and Fedora 9 before that. I downloaded and burned the F11 DVD, booted it, did an install which is:
-- delete the LVMs
-- create a 200 MB /boot on ext3, the rest of /dev/sda on ext3 as /
-- reformat the swap partition on /dev/sdb1
-- leave the other file systems alone (they are all ext3)
I chose no optional packages and let it install. It finished normally and got to the "click to reboot" screen. Now, my server is completely bricked. When I power it up I get a blank screen with a blinking cursor. I cannot even get to the BIOS, or boot my Fedora DVD, much less boot the boot drive.
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Sep 14, 2010
I've accidentally changed /usr/bin/php file on my server by running a cp command. I know this is bad, i just don't know how bad. Everything is working fine (websites using php), so i just wanted to know what this action could cause and also how can i restore original content.
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Feb 22, 2010
I tried to use a windows server side program in wine but seems the ip has changed.
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Jun 19, 2010
I recently installed virtual box on debian and after it had finished my terminal informed me that I could remove some "unnecessary" software by use of sudo apt-get autoremove. When I did this, some of the icons on the desktop changed and all of the icons in the drop down menu on the bar at the top of the screen also changed to ordinary folder symbols. The theme that I was using also went away. I restarted the computer and it booted back into a shell prompt with no GUI. I tried to get back to the GUI using alt+f7 but it didn't seem to exist
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Mar 17, 2010
I am having following problem. If I try to change my SMB password, it throws following error >
Quote:
~>smbpasswd
Old SMB password:
New SMB password:
Retype new SMB password:
Server did not provide 'target information', required for NTLMv2
rpc_pipe_bind: rpc_send_auth_reply failed.
machine 127.0.0.1 does not support SAMR connections, but LANMAN password changed are disabled
Failed to change password for user1
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