Ubuntu Servers :: Only Root Can Write To /tmp

Mar 2, 2010

8.04 64bit LTS no gui loaded Only the root user can write to /tmp. I tried to create a cron job for a user and received an error

Code:

crontab -e
no crontab file for ed - using an empty one
/tmp/crontab.SCQ30O: Permission denied
Creation of temporary crontab file failed - aborting

Then I tried a simple touch /tmp/test1 and it failed with a 'touch: cannot touch `/tmp/test1': Permission denied I tried the Windows fix and rebooted, no change. Only root can write to tmp. This may sound lame but... using ls /tmp show reversed video (highlighted blue on green) on the servers the the users have access to, just plain blue on the 'broke' one. I did a sudo chmod a+w /tmp but do not know if that was a smart thing to do or not...

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Ubuntu Servers :: "Warning: No Write Permission" Even With Root

Mar 21, 2011

i am using Ubuntu 10.10 and login using root on terminal but when i want to edit any file i get this error

"Warning: No write permission" Also see the result of dhcp restart

root@webmin:~# /etc/init.d/dhcp3-server restart
* Stopping DHCP server dhcpd3 [fail]
* Starting DHCP server dhcpd3 chown: changing ownership of `/var/lib/dhcp3': Read-only file system
chown: changing ownership of `/var/lib/dhcp3/dhcpd.leases': Read-only file system
chown: changing ownership of `/var/lib/dhcp3/dhcpd.leases~': Read-only file system
* check syslog for diagnostics.

My System was working fine in the morning..what happened i dont know and i m very confused about this situation

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General :: Remount Root Filesystem As Read/write After Modify Readonly-root File?

Dec 21, 2010

My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:

# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs

[code]...

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Ubuntu :: USB Drive Owner Seen As Root And I Can't Write To It?

May 29, 2011

When I installed Ubuntu, I was asked to enter a user name and password. I chose one that would be a sort of "administrator alias" and gave it a strong password. This is my "su" name and password. That works fine for most things, such as installing software, etc.. Every so often, however, something comes up that can only be accessed by "root" and that is not me, even logged in with my "administrator alias" and password. This happened when I inserted a USB flash drive and tried to copy some files to it that I wished to transfer from my desktop my laptop. The only way I could do this was to format the flash drive. and then add my files to it.

This morning I inserted the flash drive and tried to add another file to it, using "copy" and "paste". Again I got "permission denied" and the owner of the flash drive, seen as "usb0", was again "root", and I could not change its permissions, because I am not "root". It also says the device is not listed in etc/fstab. I have read the Ubuntu paper on mounting USB drives, but I'm not sure that applies here. The drive seems to be mounted, but with the wrong owner.

This problem has also occurred with some software when I tried installing it. I usually give up and don't install it. This flash drive problem, however, is driving me crazy. I need to transfer those files. Is there something I'm missing? Despite installing and upgrading Ubuntu on 2 machines, I'm still pretty much a newbie, and if it involves using the terminal, I need step-by-step instructions,

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Ubuntu Networking :: Only Root Can Write To Cifs Mount?

Feb 18, 2010

I'm trying to talk the studio I work at into switching one of the departments to linux. (likely kubuntu). So I'm trialling it, but having issues mounting windows shares.It's working great; all except that only Root can write to the mount. I've tried a few different things with fstab, no go.Below is my fstab so far, and you can see the mountpoints.

Code:
# /etc/fstab: static file system information.
#

[code]....

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OpenSUSE Install :: Write In Terminal As Root?

Jan 2, 2010

If my password is for root and me is the same, how do I write my password as root and get permission to enter as root?

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OpenSUSE Install :: Can Only Write NTFS As Root

May 16, 2011

After the fresh installation of openSUSE 11.4 x64 (Gnome 2.32.1) my NTFS drives were mounted automatically. However, I can only write those partitions as root. I' ve already tried everything I found on the internet, but none of those solutions worked and as a rookie, I haven't got any idea how to proceed. My original FSTAB looked like this:

Code:

/dev/disk/by-id/ata-Hitachi_HTS545050B9A300_100708PBN403B7HMV4WL-part6 swap swap defaults 0 0
/dev/disk/by-id/ata-Hitachi_HTS545050B9A300_100708PBN403B7HMV4WL-part7 / ext4 acl,user_xattr 1 1
/dev/disk/by-id/ata-Hitachi_HTS545050B9A300_100708PBN403B7HMV4WL-part8 /home ext4 acl,user_xattr 1 2

[code]....

I also installed ntfs-config and according to it my drives are supposed to be writeable (although that might refer to my root account). But none of the above steps made my NTFS partitions writeable for a non-root account. I restarted my system after each time I changed the content of FTSAB.

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CentOS 5 :: Write Grub Into A Root Partition Instead Of MBR

Aug 29, 2011

Howto write Grub into a root partition instead of MBR on Centos 5.6 using CentOS-5.6-i386-LiveCD?

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Fedora :: Access And Write In Root Graphically Fsdf ?

Nov 24, 2010

I just want to know how can I access root graphically if I want to paste a folder or write something then I have to do it by terminal I want to do it as graphically. If I am not wrong some thing like this system I found on fedora 8 but I want to do it in fedora 14. even f14 gedit not working.

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General :: Root (sudo) Can't Write To File It Created?

Mar 9, 2011

Debugging some of my scripts after upgrading from Debian Lenny to Ubuntu 10.04. In so doing, I tripped over this "problem," the solution to which may give me a clue to others.

On a bash shell command line I created a file thusly:

sudo touch zero_file

and it lists as expected with default permissions 0644:

-rw-r--r-- 1 root root 0 2011-03-09 11:18 zero_file

But then this command fails

sudo echo abcdef >>zero_file
-bash: zero_file: Permission denied

I can place the command (minus the "sudo") in a script & run it under the auspices of sudo & it works. Am I missing something re the stdin redirection when using sudo?

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General :: Make The Root Device Read/write?

Mar 4, 2011

I need to change a filename but when I boot up I get the message root device is read-only. Is there a way of changing this so that I can change the filename. I have a Mac Pro running Leopard OSX. The graphics card an NVIDIA 7500GT or driver has failed. It was suggested elsewhere that I change the relevant kext files to filename.kext.old, which I did, now when I try to boot start in OSX I get a message in various languages telling me to restart. I have tried booting in safe mode and from original Installation CD. In Safe Mode I get the same multi language splash screen, from CD I still have the graphic card problem, screen freezes and artifacts appear. So I boot up straight into CLI by holding down CMD-S hoping to be able to change filenames back but it says device read-only.

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OpenSUSE Hardware :: IPod Automatically Mounted But Can Only Write As Root?

Jan 30, 2010

I don't know why but every time I plug my iPod it gets mounted automatically as root and therefore I can't write anything in it. I mentioned this issue on the #suse irc channel posting mount output:

eugenio@openSUSE:~> mount
/dev/sda7 on / type ext4 (rw,acl,user_xattr)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
debugfs on /sys/kernel/debug type debugfs (rw)

[Code]....

I read some posts about editing the fstab file but I'm not really sure how to do this (if this is the solution) and I believe this could have worked on earlier versions (where HAL was used) Is there anything I can do to make opensuse mount my ipod automatically with full access to normal users?

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General :: Root User Using Freshclam Command Cannot Write To Directory?

Jun 27, 2010

When I log on a root and attempt to issue the command Freshclam to upgrade the virus definitions it attempts or create a new file with a definition name. I get a message stating that the directory isnt writable. The user and group access rights are as follows:

USER = read, write, execute
Group = read, write, execute
All= read, execute.

The only way I can get around this is by applying a 777 which would be read, write and execute for all. Now, I have a group define with several user ids in it including Root.How do I connect the group with the directory/file so I dont have to apply a 777 access right to group users could issue the Freshclam command.

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Fedora :: Non-root Users Have No Write Permission On Ext3/ext4 Partitions?

Apr 7, 2010

I created 3 partitions on my usb stick, one is vfat, one ist ntfs and one is ext4.And i formated them like this:

Code:
mkfs.vfat -F32 /dev/sdg1
mkfs.ext4 /dev/sdg2

[code]....

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General :: Removing Write Permission Does Not Prevent Root From Writing To File

Feb 3, 2010

I just noticed on my Ubuntu machine (ext3 filesystem) that removing write permissions from a file does not keep root from writing to it. Is this a general rule of UNIX file permissions? Or specific to Ubuntu? Or a misconfiguration on my machine? Writing to the file fails (as expected) if I do this from my normal user account.Is this normal behavior?Is there a way to prevent root from accidentally writing to a file (Preferably using normal filesystem mechanisms, not AppArmor, etc.)

I understand that root has total control over the system and can, eg, change the permissions on any file.My question is whether currently set permissions are enforced on code running as root. The idea is the root user preventing her/himself from accidentally writing to a file. also understand that one should not be logged in as root for normal operations.

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General :: Hard Drive - Driver Keep Saying 0 Bytes Free And Only Root Can Write?

Nov 26, 2010

I have a very very insane problem with my ssd sata harddisk. I did fill the harddisk, and Thunderbird complained about "no space left on device". But even if I delete some files from the harddisk, df will still say 0 blocks free. But it will decrease the number of used blocks. So it looks like it is freeing the blocks and deleting the files, but it don't put the blocks back to the free pool.

But here is where things get insane: If I log in with my normal user, I get a "No free space" when I try to write to the harddisk. But If i log in as root I can write to the file system, despite the fact that df is saying 0 blocks free. I did try to run fsck -f but it just run its test and then say that anything is fine. But it run for less then 10 seconds, is this expected on a 40GB ssd partition?.

[Code]...

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General :: Allowing Read Write To Ext3 Partition To Non-root Users

Mar 18, 2010

I need to allow non-root users to read/write on an ext3 partition.

Below is the relevant output from fdisk -l

Code:

The partition in question is /dev/sda4 and it is mounted as /Data (setup during installation).

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Networking :: Run The Job Under A Root Account And Deny Read/write Access To A Normal User?

Jan 18, 2010

I'm setting up Ubuntu Karmic on my sister's old computer for my nephew, he's quite young so my sister asked to install some content filtering. I'll first setup an OpenDNS account and I've installed and managed to get dansguardian and squid working on a virtual machine to try it out. so far it's working pretty well, but I need to secure it form the inside out.

I was thinking of blocking specific outbound ports so he could not bypass the proxy. because by default the firefox configuration can be easily changed. so I have a couple of questions.

1. is it possible to block outgoing ports on Ubuntu?
2. is that the best method?
3. is there anything else I should be aware of to prevent subversion?

lastly, this question is probably unrelated to this board but I've set up a cron job to update a dynamic ip with OpenDNS, the problem is that the password is in clear text in the user's crontab, can I play with permissions? is it possible to run the job under a root account and deny read/write access to a normal user?

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Ubuntu Servers :: Write Php Lang In Nano?

Jul 8, 2010

I have been install LAMP ok. ware i want to write php lang in nano , vi or vim. how to host the website

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Ubuntu Servers :: Cannot Write To Samba Shares From Mac?

Nov 5, 2010

This is (I suspect) a Mac OS issue but they've given no help (or replies!) on Mac forums so I'll ask here.I've just got a Mac and I can connect to shares on my Ubuntu (10.04) server, read files and create directories but I cannot write. I get this error:"The operation cannot be completed because you do not have sufficient privileges for some of the items."I can connect from the command line with smbclinet and write fine. I have tried several different users on both the Mac (cannot write) and Ubuntu clients (can write).Is this something to do with the ._filename files that finder creates? Or is there something wrong with the way I've set up my server? This is the first time I've used it with a Mac client.

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Ubuntu Servers :: WRITE Performance Down On RAID 1 Array

Sep 7, 2010

I'm currently experiencing some serious issues with WRITE performance on a RAID-1 array. I'm running Ubuntu 10.04 64 bit server with the latest updates. To evaluate the performance ran the following test: [URL]... (great article btw!) Using dd to measure, write performance is only at 8.7 MB/s. Read is great though at 74.5 MB/s. The tests were ran straight after rebooting and I have not (YET!) done any kernel tuning or customization, running the default server package of the Ubuntu kernel. Here's the motherboard in the server: [URL]... with a beta bios to support drives over 300GB.

[code]...

As you can see from the bo column there is definitely something stalling. As per top output, the %wa (waiting for i/o) is always around %75 however as per above, writes are stalling. CPU is basically idle all the time. Hard drives are quite new and smartctl (smartmontools) does not detect any faults.

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Ubuntu Servers :: SAMBA Share Read Write Permissions?

Mar 23, 2010

i have setup a samba server and created samba shares on it, i have configured the samba server to authenticates users from a windows server 2003 DC,

i have 2 shares call IT and MYSHARE, I want to give read and write permissions to sevaral users to those two shares and read only permisson to all the other users.

i tried editing the smb.conf file with the following settings , but no one can write or modify the files in the shares including the users specified in the
write list = cweerasinghe,njayarathna.

[IT]
writeable = Yes
browseable = yes
public = no
comment = IT share

[Code]....

how can i give access to the write list = cweerasinghe,njayarathna users to
read, write and modify the files in the shares ??

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Ubuntu Servers :: Write Acces In Win7 Folder Via Samba?

Nov 22, 2010

Not sure if this is the correct forum for this but I run ubuntu 10.04 server in virtualbox, and have samba running. I can see the files and read them in win7, but I want write access aswell!

I need to do this in terminal only, and Im not that well versed in Linux or the terminal. Anyways here is my smb.conf:

[global]
security = share
workgroup = myworkgroupname
load printers = no

[Code]...

Since "read only = no" I think i should have write permissions... and since I can read the files Im guessing the smb.conf is the problem?

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Ubuntu Servers :: Edit /etc/environment File And Write There My Variable

May 7, 2011

I edit /etc/environment file and write there my variable by it's not effected, what i need to restart daemon that it's show on echo $VARIABLE.

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Fedora Servers :: Cannot Write Into Html Folder

May 9, 2009

I'm setting up my fedora 10 server. I am currently working on samba. I have added users and created their home directories with their own html directories. I have changed their html directories to 777. However, it appears to be read-only since I cannot create files or folders within it. Can anyone please give me some ideas as to what may be causing this? Probably some extra configurations I may have overlooked? Any help would be kindly appreciated. I also created a general wshare (writable share) directory for all users within home directory but I am encountering the same problem and cannot write to it.

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Fedora Servers :: Samba - No Write Permission

Jul 25, 2011

I just have installed Fedora 15 to use it for multimedia server. I have installed also samba. Now I'm trying to access it from another PC (Windows 7) and I have no write access.

Code:
[root@echo mnt]# ls -l
total 12
drwxr-xr-x. 2 root root 4096 Jan 1 2006 boot

[Code]....

i just read whole internet (i have spend over 6h for reading and testing a lot of options and nothing...)

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Ubuntu Servers :: Running Php Files Without Setting Read / Write Permission?

Jun 26, 2010

On an Apache2 server someone else setup, I have a folder with drwx--x--x permission and the php file can still write in the folder. But on my own setup, I need to set the same folder to drwx--x-wx. Inside the folder, I have a index.php that runs just by setting rwx--x--x but on my own setup, I need to allow read permission for others/group before it can run: rwxr-xr-x (or else I get a blank page). I tried changing the folder and files to root but it's the same.

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Programming :: Write A Script For Work For Provisioning Servers?

May 20, 2010

trying to write a script for work for provisioning servers. It has a few questions and what not. What is the network IP and another is What is the block /29, /28 etc. If they provide the network and the block you can figure out the gateway, and usable IPs Is there a way to have /bin/sh configure the IPs with just that information? So if they provide 127.0.0.1/29 it will calculate 127.0.0.1 is the network 127.0.0.2 is the gateway and 127.0.0.3-127.0.0.7 are usable. However, it can't use the ipcfg-eth0-range0 method because Plesk doesn't like it.

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Ubuntu Servers :: Faster Write To Disk And Backup Of Data , Putting Together A Raid5?

May 13, 2011

Here is my brief hardware and software detail in my production environment : AMD Phenom X4 3.4gHZ (Over clock to 4gHZ, 8G of Memory, 1TB 7200rpm Harddrive, Running Ubuntu server 10.10.My web production environment were pieced together 3 weeks ago.Here is my dilemma. started out with less that 40 users and now hitting 4,000 unique users per day.Now I am thinking I need faster write to disk and backup of data so I am thinking about putting together a Raid5.

I preparation for this.I have bought a new motherboard, AMD Phenom X4 3.6, and 2 more 2TB 7200rpm (Currently, I have a 2TB 7200rpm not used much)Been digging around this forum for posts with raid setup but still not sure how to seamlessly moving the some 10Gig of data from my current running prod environment once I have RAID5 installed on this new machine via the LIVE Ubuntu Server CD.

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Ubuntu Servers :: Write A Shell Script In Order To Automate The Process Of Uploading A File?

May 21, 2010

I am trying to write a shell script in order to automate the process of uploading a file onto an FTP server using the built in FTP commands in ubuntu server (lucid). In order to connect I can use the following:

Code:

ftp wsbeorchids.org.uk
Name (wsbeorchids.org.uk:danielgroves): USERNAME
Password: PASSWORD

In need to pass my username and password in when prompted the prompts. How should I go about doing this? I have tried echoing the values without success. Please not that I am something of an amateur with scripting.

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