write permission error on a shared drive
HiA server and a client both run SL6.3. On server, I have exported a disk with the following property /data 192.168.1.0/24(rw,sync,no_root_squash) and on the client side, I wrote this entry in the fstab 192.168.1.5:/data /data nfs defaults 0 0 However on the client side, I am not able to create folders. [mahmood@client data]$ mkdir afolder mkdir: cannot create directory `afolder': Permission denied However, root has the write permission. [root@client data]# mkdir a [root@client data]# How can I grant the write permission tot he user? Regards, Mahmood
Re: write permission error on a shared drive
On Sat, Nov 29, 2014 at 10:56 AM, Mahmood N nt_mahm...@yahoo.com wrote: Hi A server and a client both run SL6.3. On server, I have exported a disk with the following property /data 192.168.1.0/24(rw,sync,no_root_squash) and on the client side, I wrote this entry in the fstab 192.168.1.5:/data /data nfs defaults 0 0 However on the client side, I am not able to create folders. [mahmood@client data]$ mkdir afolder mkdir: cannot create directory `afolder': Permission denied However, root has the write permission. [root@client data]# mkdir a [root@client data]# How can I grant the write permission tot he user? Regards, Mahmood You need to learn about uid, gid, and file system permissions. The user and the groupo that own a file are stored, on the NFS serrver's file system, as numbers. Those numbers are tied to group and owner as far as the login name and login user's groups by /etc/passwd, /etc/group, and lots of different network tools that can also do that. If the user name on the client *has the same uid and group gid memberships* as the server expects, then they'lll typically have permission to write to those directories. This is much like file ownership on a local directory. If someone else owns the directory, *and did not allow write access to others*, others will not be able to write there. In this case, I would do ls -al /data and see who owns it. Then I'd look up the man pages for chown and chgrp and chmod to get a handle on what you want to allow and prevent.
Re: write permission error on a shared drive
Mahmood you will also probably need to learn about the setgid bit. On Sat, Nov 29, 2014 at 12:23 PM, Nico Kadel-Garcia nka...@gmail.com wrote: On Sat, Nov 29, 2014 at 10:56 AM, Mahmood N nt_mahm...@yahoo.com wrote: Hi A server and a client both run SL6.3. On server, I have exported a disk with the following property /data 192.168.1.0/24(rw,sync,no_root_squash) and on the client side, I wrote this entry in the fstab 192.168.1.5:/data /data nfs defaults 0 0 However on the client side, I am not able to create folders. [mahmood@client data]$ mkdir afolder mkdir: cannot create directory `afolder': Permission denied However, root has the write permission. [root@client data]# mkdir a [root@client data]# How can I grant the write permission tot he user? Regards, Mahmood You need to learn about uid, gid, and file system permissions. The user and the groupo that own a file are stored, on the NFS serrver's file system, as numbers. Those numbers are tied to group and owner as far as the login name and login user's groups by /etc/passwd, /etc/group, and lots of different network tools that can also do that. If the user name on the client *has the same uid and group gid memberships* as the server expects, then they'lll typically have permission to write to those directories. This is much like file ownership on a local directory. If someone else owns the directory, *and did not allow write access to others*, others will not be able to write there. In this case, I would do ls -al /data and see who owns it. Then I'd look up the man pages for chown and chgrp and chmod to get a handle on what you want to allow and prevent.
Re: write permission error on a shared drive
OK. I managed to solve it temporarily by adding both users to the same group and setting chmod -R 775 /data Regards, Mahmood On Saturday, November 29, 2014 9:49 PM, Paul Robert Marino prmari...@gmail.com wrote: Mahmood you will also probably need to learn about the setgid bit. On Sat, Nov 29, 2014 at 12:23 PM, Nico Kadel-Garcia nka...@gmail.com wrote: On Sat, Nov 29, 2014 at 10:56 AM, Mahmood N nt_mahm...@yahoo.com wrote: Hi A server and a client both run SL6.3. On server, I have exported a disk with the following property /data 192.168.1.0/24(rw,sync,no_root_squash) and on the client side, I wrote this entry in the fstab 192.168.1.5:/data /data nfs defaults 0 0 However on the client side, I am not able to create folders. [mahmood@client data]$ mkdir afolder mkdir: cannot create directory `afolder': Permission denied However, root has the write permission. [root@client data]# mkdir a [root@client data]# How can I grant the write permission tot he user? Regards, Mahmood You need to learn about uid, gid, and file system permissions. The user and the groupo that own a file are stored, on the NFS serrver's file system, as numbers. Those numbers are tied to group and owner as far as the login name and login user's groups by /etc/passwd, /etc/group, and lots of different network tools that can also do that. If the user name on the client *has the same uid and group gid memberships* as the server expects, then they'lll typically have permission to write to those directories. This is much like file ownership on a local directory. If someone else owns the directory, *and did not allow write access to others*, others will not be able to write there. In this case, I would do ls -al /data and see who owns it. Then I'd look up the man pages for chown and chgrp and chmod to get a handle on what you want to allow and prevent.
