Nfs root clients. This example is based on the environment like follows.

Nfs root clients See "man exports" for Read Only Clients: - Read Write Clients: 10. Now if any user accesses the /mnt directory and creates a file or directory, it will be owned by the ‘testing’ group. showmount -e 192. Configure NFS Client to mount NFS Share on NFS Client. Please note, the information below is for guidance only and neither of these methods should be considered an In this article we will only cover the NFS client part i. Does an NFS share need to be at the root of a ZFS dataset? If so, maybe that was one of my problems. / -rw-r--r--. The first thing we need to do is install the NFS server package, which is available from the main repositories. Vous devez maintenant créer un répertoire NFS root et exporter les fichiers à l'intérieur du répertoire. On Linux, you usually need to specify no_root_squash in the /etc/exports file where the export is defined. Preventing Superuser Privileges: When root squash is enabled (which is the default setting in most NFS configurations), any access request from the root user (UID 0) on an NFS client is mapped to a non-privileged user (often nobody or nfsnobody) on the NFS server. NFS client considerations 4 NFS client considerations 4. NFS-root (diskless) clients, where the local DHCP server (or equivalent) does not provide a unique host name. Read Only Clients: - Read Write Clients: 10. 15-23-686 nfsroot=192. 允许客户端使用非特权端口（大于 1024 的端口）访问 NFS 共享, 默认情况下，NFS 要求客户端使用特权端口（小于 1024 的端口）。 默认情况下，NFS 会将客户端的 root 用户映射为服务器的匿名用户（通常是。：这个权限可能会带来安全风险，因为客户端的 root 用户可以对共享目录进行任意操作。 Now add these to the keytab-files on your NFS-server and client. keytab nfs/client. 2 share to root on a client machine -- the specific use case shouldn't be important, but I'm trying to provision network storage for Docker volumes on the client. Client machines can then connect to the server to access and/or upload files. However, it successfully reads but cannot write. Here are some notes on how to set up both a host machine to act as the DHCP, TFTP, and NFS server, as well as how to set up the PXE-booted image. # mount -F nfs nfs://bee//export/share/man /usr/man Here is an example of using an NFS URL with the mount command in NFS version 4. 138. Here is some information I think might be relevant: tail -n 1 NLM: failed to contact remote rpcbind, stat = 5, port = 28416 root@san6:~ # mount | grep nfs data0 on /data0 (zfs, NFS exported, local, noatime, nfsv4acls) 此配置更改需要重新启动 NFS 服务，这可能是某些 NFS 客户端的颠覆性更改。此配置更改也适用于所有访问分区。 实现. It How to configure NFSv4 mount so that owner of files created by root user on NFS client appear as 'root:root', rather than 'nobody:nogroup' on client? Gaining Root-Level Access: If an attacker gains root access on an NFS client, and no_root_squash is enabled, they can access and modify files on the NFS server as root. In this example I have setup nfs exports on server1 (10. txt. So with this in mind, UIDs have two completely different and independent usages in NFS: ownership data reported by server and authentication credentials reported by client. umount old/ umount nfs/ Once this is complete, your OS root is now copied to the NFS root. On a Linux NFS server (see man rpc. As in the above output "Clients" field is blanked, all the hosts can mount NFS export regardless of their presence in "Root Clients", "Read Only Clients", or "Read Write Clients" fields. 04 LTS; Windows Server 2025; Windows Server 2022; Debian 12; Debian 11; Fedora 42; AlmaLinux 9; Rocky Linux 8; VMware ESXi 8; FreeBSD 14; [root@node01 mnt]# grep /mnt /proc/mounts In the first example, we’ll create a general-purpose NFS mount that uses default NFS behaviour to make it difficult for a user with root privileges on the client machine to interact with the host using those client superuser privileges. mountd) the client Most NFS client features (or lack thereof) still reflect that design. This functionality is an important part of protecting user data and system I want to be able to share some files on an NFSv4. On the server side, if you don't plan to use the old, user-mode NFS daemon, you'll need to compile NFS server support into the kernel (``NFS server support,'' a. chown mode: controls what users can run change ownership commands on the export (chown). I'll experiment a bit with that. Suivez ces commandes de terminal pour ce faire. 1 root root 5 May 4 19:14 testfile. NFS allows a system to share directories and files with others over a network. MountdMustUseAlias=1; 使用以下命令重新启动 NFS 服务： windows 11 nfs client 安装 安装nfs客户端，1. OneFS supports NFS protocol versions 3, 4, and Kerberos authentication. If this is the Before mounting the NFS share, I request you to check the NFS shares available on the NFS server by running the following command on the NFS client. 1, the root user might display as nobody when running directory listing commands on NFS clients. If a client is the only one within a client declaration section in the configuration file, then this client section is removed. In some situations however, this might be highly desirable. (This can be disabled using "no_root_squash", but it's better to just grant the necessary minimum access to the "nobody" user This is usually caused by the configuration on the NFS server. To install it, open the Server Manager and select Add Roles and Features -> Starting with RHEL/CentOS 7. 2 as client. It seems that the FreeBSD NFS maps the local root user as nobody, even when the server allows mapping root correctly (no_root_squash) and mounting from a remote Ubuntu box results in root user correctly mapped. Vno Type Principal 6 des-cbc-md5 nfs/client. My Mini-Howto does not, in any way, try to replace his work, but to enhance it using my experiences in this process. I based most of my client's configuration on mounts and symbolic links. If you plan to use the older RARP protocol to assign the client an IP address, RARP support in the kernel of the server is probably a good idea. I also remounted the share in the client, but the "permission denied" still persists. In running the NFS environment, where multiple clients already mounted NFS shares from the NFS server and you need to edit NFS share configuration. 1611. The string should By default, the NFS service applies a root-squashing rule (map the root user to nobody user) for the NFS export. Is there a certain tutorial you followed for the whole set-up, or is it all home-grown? – tink. NFS version 2 is not supported. If set to "On," the root is root. Zuerst erstellen Sie das Freigabeverzeichnis. In this way, all root-created files are owned by nfsnobody, which prevents uploading of programs with the setuid bit set. 0开始netapp公司参与并主导开发 NFS数据传输基于RPC协议： 应用场景：A,B,C三台机器上需要保证被访问到的文件是一 The following text describes on how to use NFS for the root filesystem. NFS works over both UDP and TCP, only open TCP connections will show in netstat or ss. On Fedora Kinoite, the root filesystem (/) is immutable. e. nfs. 100. Strangely with the "map all users to admin" setting even the root account on the Sie erschwert es einem Root-Benutzer auf dem Client, mit erhöhten Rechten mit dem Host zu interagieren. And no, I'm not following a specific tutorial. You might use something like this to store files that were uploaded using a content management system or to create space for users to 3. This article is helpful in verifying whether an NFS export is configured correctly. In this Howto I will recommend the configuration of a client based on my experience. total 12 drwxr-xr-x 3 root root 4096 Apr 22 00:47 . k. Nevertheless, here's my new dataset: Nick2253 said: Set the dataset owner/group Our NFS Server: In this example we already have an NFS server setup on a CentOS 7 Linux system which is available at 192. rpc. 231. NFS servers will often map UID 0 (root) to another user such as "nobody" or "nfsnobody". This is due to the client’s ID domain mapping configuration. It is an early form of a network file sharing system, where a server can export part of its filesystem so that this can be mounted by a client on the local network. vers2=n. or. • Root clients - map as root . You need to specify on the NFS server which clients are allowed root access to the mount. Since you have not defined a root client, you might be getting squashed to the anon user, which falls into a different mode bit permission set than the owner, unless that owner is anon. Use the rsync command to transfer the SD card Linux install to the NFS Root Export. 1 root root 5 May 4 19:12 test. conf. If set to "Restricted," only the root user can run chown. 200:/root/nfs /mnt. xxx. 3. See our guide on creating an NFS server in Linux here if you need information on how to do this. 9. NFS version 4 (NFS4) does not (seem) to support this feature at this time. NFSv3. This is only possible if your client machine has a network card that supports this (do you remember seeing some type of option like press N to boot from network just after posting?). The "None" value gives root user super-user access privileges to the NFS export, letting it create, Mount NFS exports on NFS Client The example below is generated on CentOS 7. 2 Intern Configuring the Client to Boot from NFS Configuring U-Boot. Also, as a distributed filesystem, it has (historically) had its fair share of problems PDF (state, cache, locking, notifications, security — some of which have solutions through extra RPC features, e. 186 Mount NFS Share NFS relies upon remote procedure call (RPC) for client authentication and port mapping. That happens in the opposite direction: when you run a program out of an NFS share, it is still being read and executed on your client machine – not on the server – so unlike in the previous case, now it is the NFS client that believes in what information the server provides about a file's ownership or permissions, and "root_squash" doesn't alter those. You can edit the NFS configuration file and re-export NFS shares using exportfs command. The client systems will also need the nfs-utils package installed to be able to mount NFS. You have two choices: 由于nfs服务本身并不具备用户身份验证的功能，而仅支持基于客户端ip进行认证。也就是说，我们在对nfs服务进行权限设置时，不能针对用户来分配权限，而只能针对客户端ip进行权限分配。 Also, note that if the server has the same architecture (e. EXAMPLE. Symlinks are used to make traditional state-carrying directories available in their expected locations. Use the no_root_squash option in your /etc/exports entry. By default, an NFS export on OneFS maps the root user to the nobody user, an unprivileged user account. We run a couple of automated scans to help you access a module's quality. Parameters. Peter_Sero. The Problem. rsync -avxHAXS --numeric-ids --info=progress2 --progress old/ nfs/ Unmount the directories. CentOS Stream 10; CentOS Stream 9; Ubuntu 25. Client can be a single client specifier, or a comma-separated list of client specifiers. 1) with below configuration [root@server1 ~]# exportfs -v /ISS <world>(sync,wdelay,hide,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash) Wenn diese Einschränkung nicht gewünscht ist, der Systemverwalter des NFS-Clients also auch root-Rechte auf dem freigegebenen Verzeichnis haben soll, dann muß die Option no_root_squash angegeben werden. This example is based on the environment like follows. This prevents the client from gaining root privileges to the server despite the user’s credential. As per my knowledge when I export a volume like this it should be writeable by all nfs clients . Hi, On OMV6, I created a NFS Share with read/write access and create a user called 'user'. xxx, 10. 04; Ubuntu 24. With Windows NFS clients, use the -o nolock option on the NFS server to prevent the Linux NLM from registering with the portmapper. This option is needed for diskless clients. A simple echo foo > /mnt/share/example as root on the client machine results in a file owned by nobody:nogroup: $ ls -l /mnt/share -rw-r--r-- 1 ONTAP 9. For the rest of this text ‘client’ means the diskless system, and ‘server’ means the NFS server. This facilitates migration from NFS version 2 to NFS version 3. [root@client mnt]# touch setgid-test LABEL linux KERNEL vmlinuz-2. no_root_squash allows root user on the NFS client host to access the NFS-mounted directory with the The Network File System (NFS) client is not installed by default on Windows Server 2022/2019/2016/2012R2 and Windows 11/10 desktop versions. 10:/var/share /mnt/share [root@Client ~]# touch /mnt/share/c. 一、NFS服务介绍 NFS是 Network File system的缩写 分为2. Introduction. service. Par exemple si un client NFS se met en veille, lors du réveil, après saisie du mot de passe dans l'écran de session, vous serez "bloqué" et aurez bien du mal à reprendre la main. Enabling nfsroot capabilities¶ In order to use nfsroot, NFS client support needs to When using NFSv4. example. 1 root root 0 4月 14 17:08 /mnt/share/c. First on the client we can use the showmount command to view a list of mounts exported on the NFS server. NFS version 3 is the most widely used version of the NFS protocol today, and is generally considered to have the widest client and filer adoption. From the manual page for exports: User ID Mapping. I mount the volume on a clinet on a dir /test . In this way, a remote root user on the client does not get the root permission on the file system. Only required for NFS root. root_squash - Requests from root clients are mapped to the nobody user and H ow do I access my enterprise NAS server by mounting NFS filesystem onto my Mac OS X based system using GUI and command line based tools? Network File System (NFS), a distributed file system protocol developed by Sun Microsystems. keytab file) and initialize as Kerberos administrator. 1 (labeled NFS) NFS client support NFSv3 clients will not appear in the Interoperability Matrix (IMT), as ONTAP supports all NFS clients that comply with the standards defined in Request For Comments (RFC) documentation that is ratified by the Internet Engineering Task Force (IETF). 43. Using Rocky Linux 9 as client, I can login as root and mount OMV6 nfs share using following command : NFS version 3 (NFS3) supports using client UID:GID for host (read/write) permissions. 7, to configure NFS server you must use /etc/nfs. We need to map a NFS clinet's root user to NFS server's root user so both of them can work freely with directories no matter where they we created. 14 and we have exported the /root/nfs directory with NFS. For the rest of this text 'client' means the diskless system, and 'server' means the NFS server. Keeping the rule as the default setting is recommended because the root account is the super user in Linux and UNIX environments. 1 Compiling the kernels. 介紹如何在 Ubuntu Linux 中安裝 NFS 伺服器，並設定 NFS 用戶端，讓多台 Linux 主機共享檔案。 NFS（Network File Share）是 Linux 系統上常用的檔案分享協定，可以讓 Linux 系統上的目錄與檔案分享給網路上其他台 Linux 主機，以下是 Early NFS client implementations did not send credentials with lock requests, and many current NFS clients still exist which are based on the old implementations. at>). or (b) Set the NFS server to export with the option "no_root_squash", so the NFS client's root user can be treated as the NFS server's root user -- though this is less secure. Server World: Other OS Configs. As you see the new file is created with nobody permission. Note: Changing this option to no_root This section of the guide will go over the configuration for the NFS server – in other words, the machine that will be hosting the NFS shares. 2:/nfsroot ip=dhcp rw. But beforewe begin please note: This Mini-Howto does not explain how to do the actual NFS Root mounting. To change this, edit the export list on the filer so that the line for the filesystem has the parameter root=clientid, where clientid is the IP address or hostname of the client that you want to have root access to that filesystem. txt [root@Client ~]# ll /mnt/share/c. CLI Commands - user show detailed - nfs add export-path <client-IP> (rw,root_squash, all_squash, anonuid=user-ID, anongid=group A NetApp NFS server will, by default, change the credentials of the root user on a client into uid 65534 on the server, so operations like chown will fail. Dans cet article, vous allez apprendre à installer et à configurer le serveur NFS et le client NFS sur les distributions Linux CentOS/RHEL 8. I would like to express my thanks to the author of the NFS-Root Howto, Andreas Kostyrca (<andreas@medman. If I chage the export to a subdirectory of the root, no root squash works as expected. This The following text describes on how to use NFS for the root filesystem. 可以发现，此时客户端仍然是可以写入的。 If RARP is used to determine the client address and this parameter is NOT empty only replies from the specified server are accepted. 15-23-686 APPEND root=/dev/nfs initrd=initrd. ag. com [root@client ~]# klist Ticket cache: KEYRING:persistent:0:0 Default principal: nfs/[email protected] Valid starting Expires Service principal 06/11/2016 23:01:41 06/12/2016 23:01:41 krbtgt/[email protected] Great so we can indeed get the ticket. OneFS supports NFSv3 and NFSv4. Daher By default, NFS shares change the root user to the nfsnobody user, an unprivileged user account. Copy and Modify the boot SD Card to use NFS Root 3. COM 6 des-cbc-md4 How to re-export NFS shares after editing the configuration file. Motorola 680X0 microprocessor for NetBSD/hp300 and sun3, Sparc microprocessor for NetBSD/sparc, and Vax microprocessor for NetBSD/vax), and is running NetBSD, then the client will be able to use the /usr directory structure from the server, saving a significant amount of disk space. Conditions préalables: Guide d’installation de CentOS 8; (utilisez sudo si vous administrez le système en When you have a whole rack of machines and don't want to install and manage separate OS installs on all of them, setting up to boot via PXE with a shared NFS root can be a major time-saver. / drwxr-xr-x 19 root root 4096 Apr 25 10:05 . txt -rw-r--r--. For example @Rusty I changed the entry to insecure from the cli (is there an option for it in the gui?) and reloaded the nfs-server. yyy. 80. If each container has a separate network namespace, but does not use the UTS namespace to provide a unique host name, then there can be multiple NFS client instances with the same host name. Primary Group:-Secondary Groups: - Map Non Root NFS clients typically connect from a port restricted to root (in other words, below 1024); this restriction can be lifted by the insecure option (the secure option is implicit, but it can be made explicit if needed for clarity). Highly likely the client is using nfsv4 and the nfsv4 domain id’s are different on the client and the server. a. root_squash Map requests from uid/gid 0 to the anonymous uid/gid. How to make root act similarly in an NFS directory to the behavior in local directories? The reason that NFS directory is non-accessible to root is likely root_squash. I've searched through lots of Second, it fails for root because NFS doesn't trust root on remote systems by default. conf instead of /etc/sysconfig/nfs. Enabling nfsroot capabilities¶ In order to use nfsroot, NFS client support needs to By default, if the clients list is empty, anyone can mount it (this is the standard for most NFS servers, no just Isilon). Commented Feb 13 at 15:55. Very often, it is not desirable that the root user on a client machine is also treated as root when accessing files on the NFS server. If you have a preconfigured system the names should be the names of the kernel and initrd (see below) on the client system [root@Client ~]# mount -t nfs 192. Sous Red Hat Linux, pour lancer le serveur NFS, utilisez la commande écrite ci-dessous. 备注： [root@client ~]# kinit -k -t /etc/krb5. Setup on the server 3. Log in to your NFSserver (as root, because you will need to edit the /etc/krb5. Et pour rendre votre serveur NFS <client-ip> 客户端的IP地址。默认：通过自动配置获取。 <server-ip> NFS服务器的IP地址。如果使用RARP来获取客户端地址，并且该参数不为空时所指定的服务器才会被接受。 只有NFS root需要该参数。如果没有设置该参数或者不是使用的NFS root，那么自动配置将不会被触 For a related reason, the NFS server will not allow clients to have root privileges – whenever an NFS client claims that access is performed by root (UID 0), it actually gets the privileges of the nobody user instead. g. Since we plan to only enable NFSv4, we will disable older NFS versions using /etc/nfs. The /etc and /var directories are respectively used to store configuration files and runtime state and are thus writable. 2. Here is an example of using an NFS URL with the mount command in NFS version 2 or version 3. Value is exported to /proc/net/pnp with the prefix “bootserver ” (see below). 运行此命令可更改配置： isi_gconfig注册表。Services. # mount -F nfs -o vers=4 nfs://bee//export/share/man /usr/man Use the forcedirectio mount option to enable the client to permit concurrent writes, as Not that I have practical experience w/ diskless or NFS root clients. [root@client ~]# mount -t nfs 192. 10. Fedora 40 Configure NFS Client. Refer to the NFS-Root Mini-Howto if you need more information about that issue. 1. If set to "Off," the root is squashed to the anonymous user ID 65534. . 168. Install NFS Client Removes the NFS client specified by Client from the export configuration for the Path. NFS (short for Network FileSystem) has been around for a long time. The /usr directory and everything below it is read-only. 1 and the nobody user/group for details on this issue and how to resolve it. Each module is given a score based on how well the author has formatted their code and documentation and modules are also checked for malware using VirusTotal. @tink I have not tried dhcpcd yet. When using TCP, a single dropped packet can be retransmitted, without the retransmission of the entire RPC request, resulting in better performance over unstable networks. txt root@node01:/mntdir# (a) Make sure NFS client processes run as a non-root user. 为什么使用NFS稳定性和可移植性：NFS是一个稳定且可移植的网络文件系统，基于RPC远程过程调用实现，使得在不同的机器之间共享文件系统资源变得简单可靠。扩展性和高性能：NFS具备可扩展和高性能等特性，能够满足企业级应用的质量标准。 Root access: specifies how the root user is treated in NFS exports for a given client. For Supported Clients, OS and versions, [root@nfs-client ~]# ls -l total 0 -rw-r----- 1 nfsnobody nfsnobody 0 Aug 20 13:31 file. This tutorial explains how to setup a Linux thin client that boots using PXE by pulling a remote Linux kernel image and mounting a remote root file system over NFS. yyy NOTE: Output is truncated for better understanding. This behavior is also known as root squash. Set the bootargs variable to tell the kernel to boot into the NFS filesystem: NOTE: The root=/dev/nfs directive tells Linux to instantiate with the virtual device, /dev/nfs, as the root filesystem. 1. His Mini-Howto helped me with the first steps in creating a NFS Root Mounted client. 4三个版本，2和3由sun公司起草开发，4. ISI-1# isi nfs export view 2 --zone Dev ID: 2 Zone: Dev Paths: /ifs/dev/home Description: Clients: - Root Clients: nesprd Read Only Clients: - Read Write Clients: - All Dirs: No Chown Restricted: No Commit Asynchronous: No Map Lookup UID: No Map Retry: Yes Map Root Enabled: True User: root. I'm trying to build a shared environment between VMs, I currently have a Debian box running a NFSv4 server and FreeBSD 10. lwio. to mount NFS share on the client from the server. Here are key components of this version: Stateless - A client does not technically establish a new session if it has the correct information to ask for files NFS export map options Root or non-root user mapping. Note that this does not apply to Root Clients: 10. Same as @RobRoy90 I tried different squash mappings yesterday. See the section called NFSv4. OneFS also allows mapping other non-root The following text describes on how to use NFS for the root filesystem. NFS is the common for file sharing on NAS server and Linux / UNIX systems like, HP-UX, Solaris, Mac OS X, and others. $ mkdir /nfsroot $ exportfs -r. Das spielt immer dort eine Rolle, wo NFS-Server und -Client von dem selben Administrator verwaltet werden. This setting controls the access privileges of the root client user (user with UID 0). The primary difference between using NFS and NBD is while with both you can in fact have multiple clients using the same installation, with NBD (by the nature of manipulating a filesystem directly) you will need to use the copyonwrite mode to do so, which ends up discarding all writes on client disconnect. Drivers. Mounting and Verifying Exports on the NFS Client. NOTE1: your nfs server IP address, kernel name, and initrd name will likely be different. Unresolved Clients: - (GIDs) to clients using AUTH_SYS mode, and will accept numeric UIDs and GIDs from such clients. 请注意，NFS客户端地址与权限之间没有空格。 NFS 指定端口 # 查看基础信息 [root@djx ~]# rpcinfo -p localhost program vers proto port service 100000 4 tcp 111 portmapper 100000 3 tcp 111 portmapper 100000 2 tcp 111 portmapper 100000 4 udp 111 portmapper 100000 3 udp 111 portmapper 100000 2 udp 111 portmapper 100005 1 udp 20048 mountd 100005 1 As a workaround, you can force Windows to re-load the volume's root directory by updating its modification time (for example, by creating an empty file or directory in the volume's root directory). 3) with NFS so that the client should have read-write access. That is autoconfiguration will not be triggered if it is missing and NFS root is not in operation. office. com@OFFICE. By default when NFS share is exported with root_squash permission so any file $ sudo zypper install nfs-client. This prevents the root user on a client machine from having superuser privileges on the NFS Locking does work on our NFS clients for other servers. If your goal is to have the root access clients be the only clients that can mount the export, then those clients should be （3）no_root_squash：当登录NFS主机使用共享目录的使用者是root时，其权限将被转换成为匿名使用者，通常它的UID与GID都会变成nobody身份。 （4）root_squash；如果登录NFS主机使用共享目录的使用者是root，那么对于这个共享的目录来说，它具有root的权限。 In both cases, exports of the root of those zones (/ifs, /ifs/tier2 respectively) that are not root squashed (ie, root clients are set), root clients behave as if they are root squashed. 194. img-2. “Containers” within a single Linux host. 2 Intern. ) Enabling nfsroot capabilities ----- In order to use nfsroot, NFS client support needs The following text describes on how to use NFS for the root filesystem. knfsd or CONFIG_NFSD). An nfs4_unique_id string should be chosen when a client system is installed, just as a system’s root file system gets a fresh UUID in its label at install time. Root squash is an administrative security feature in NFS that prevents unauthorized root-level access to the NFS server by client machines. Si vous mettez en veille votre serveur NFS ou si il se met en veille automatique après un certain délai pour économiser l'énergie, alors vos clients NFS qui utilisent les partitions exportées seront "bloqués". To this end, uid 0 is normally mapped to a I have setup a server and client (both LinuxMint 21. The Linux NFS client currently supports all the above published versions, and work is in progress on adding support for minor version 1 of the NFSv4 protocol. $ sudo mkdir /var/nfs/general -p Wenn Sie irgendwelche Root-Operationen auf dem Client durchführen, dann übersetzt NFS diese in nobody:nogroupAnmeldeinformationen auf dem Host-Rechner. 6. Enabling nfsroot It seems that the FreeBSD NFS maps the local root user as nobody, even when the server allows mapping root correctly (no_root_squash) and mounting from a remote root_squash prevents remote root users from having superuser (root) privileges on remote NFS-mounted volumes. [root@client ~]# showmount -e Now that the NFS mount point is ready, from the client we mount the NFS share as the root user. statd). 1 Linux client Use NFS over TCP The advantage using NFS over TCP is that it works far better than UDP over unstable networks. owpdkw jefqzm vbtua fdbehyv gphzol mctskn bdfx wbe gslem cqhj rcrb vytsc mvc gbmw gyhxn