{"id":174,"date":"2017-02-28T10:48:51","date_gmt":"2017-02-28T09:48:51","guid":{"rendered":"http:\/\/owncloud.gonscak.sk\/?p=174"},"modified":"2022-08-11T09:47:52","modified_gmt":"2022-08-11T07:47:52","slug":"how-to-set-up-nfs-server-on-centos-7","status":"publish","type":"post","link":"https:\/\/www.gonscak.sk\/?p=174","title":{"rendered":"How to set up nfs server on centos 7\/8, and display content via httpd"},"content":{"rendered":"

Sometimes I need to use fast, simple and no-password storage over the network in bash, or an ISO storage for Xenserver. So nfs sharing is the best way for this.\u00a0 I have a linux machine with centos 7 and available storage of 1,5TB disk. So, prepare the disk:<\/p>\n

fdisk -l \/dev\/xvdb\n> n (new partition), and use default options. The use -t (change partition ID) and change it to 83 (Linux). The use -w (write)\nreboot\nmkfs.xfs \/dev\/xvdb1\nmkdir \/mnt\/nfs\nmount \/dev\/xvdb1 \/mnt\/nfs\/<\/pre>\n
If everything is OK, edit \/etc\/fstab to automount this partition to ours folder, and add this line:<\/p>\n
\/dev\/xvdb1 \/mnt\/nfs xfs defaults,nosuid,noatime,nodiratime 0 0<\/pre>\n
The install package nfs-utils, for nfs server:<\/p>\n
yum -y install nfs-utils<\/pre>\n
And allow nfs service in firewalld:<\/p>\n
firewall-cmd --permanent --zone=public --add-service=nfs\nfirewall-cmd --reload\n#if sometimes on clients don't working showmount, and it create an error:\nshowmount -e 11.22.33.44\nrpc mount export: RPC: Unable to receive; errno = No route to host\n#we must add another ports to firewall:
firewall-cmd --permanent --zone=public --add-service=rpc-bind\nfirewall-cmd --permanent --zone=public --add-service=mountd
firewall-cmd --reload<\/pre>\n
And uncoment this lines in: \/etc\/sysconfig\/nfs (this is no applicable at Centos 8)<\/em><\/p>\n
MOUNTD_PORT=892\nSTATD_PORT=662<\/pre>\n
Now enable nfs-server to run after poweron server and start it:<\/p>\n
systemctl enable nfs-server.service\nsystemctl start nfs-server.service<\/pre>\n
Now we must prepare this folder with this permissions, for read and write for everybody: (this is no applicable at Centos 8)<\/em><\/p>\n
chown nfsnobody:nfsnobody \/mnt\/nfs\/ -R\nchmod 755 \/mnt\/nfs\/<\/pre>\n
And edit file \/etc\/exports for this folder to by allowed for everybody in network:<\/p>\n
\/mnt\/nfs *(rw,sync,no_root_squash,no_all_squash)<\/pre>\n
And apply this change:<\/p>\n
exportfs -arv<\/pre>\n
We can see our settings with command “exportfs”:<\/p>\n
\/mnt\/nfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <world><\/pre>\n
And from other linux machine, we can mount this folder:<\/p>\n
mount 11.22.33.44:\/mnt\/nfs \/mnt\/nfs\/\n#see this disk report space\ndf -h\nFilesystem\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Size\u00a0 Used Avail Use% Mounted on\n11.22.33.44:\/mnt\/nfs\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.5T\u00a0 200G\u00a0 1.3T\u00a0 14% \/mnt\/nfs<\/pre>\n
And we can test it with 1GB file:<\/p>\n
dd if=\/dev\/zero of=\/mnt\/nfs\/1gb bs=1M count=1000\n1048576000 bytes (1.0 GB) copied, 16.4533 s, 63.7 MB\/s\n...\n...\nls -lah \/mnt\/nfs\/\ndrwxr-xr-x. 18 nfsnobody nfsnobody\u00a0 4.0K Feb 28 10:47 .\ndrwxr-xr-x.\u00a0 3 root\u00a0\u00a0\u00a0\u00a0\u00a0 root\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.0K Feb 28 10:24 ..\n-rw-r--r--.\u00a0 1 root\u00a0\u00a0\u00a0\u00a0\u00a0 root\u00a0\u00a0\u00a0\u00a0\u00a0 1000M Feb 28 10:47 1gb\n<\/pre>\n
Now we can continue with installing apache web server:<\/p>\n
yum install httpd -y
systemctl enable httpd.service
firewall-cmd --add-service=http --permanent
firewall-cmd --reload<\/pre>\n
Now, we create an configuration file for one folder from nfs storage:<\/p>\n
vim \/etc\/httpd\/conf.d\/media.exmaple.com.conf<\/pre>\n
<VirtualHost *:80>
    ServerAdmin user@example.com
    DocumentRoot \"\/mnt\/nfs\/kadeco\/installs\"
    ServerName installs.example.com
<Directory \"\/mnt\/nfs\/kadeco\/installs\">
    AllowOverride All
    Require all granted
    Options Indexes 
<\/Directory>
ErrorLog \/var\/log\/httpd\/installs.example.com-error_log
CustomLog \/var\/log\/httpd\/installs.example.com-access_log common
<\/VirtualHost><\/pre>\n
But we cannot serve this directory:<\/p>\n
AH01276: Cannot serve directory \/mnt\/nfs\/kadeco\/installs: No matching DirectoryIndex (index.html) found, and server-generated directory index forbidden by Options directive<\/pre>\n
So, we install som softvare to modify file and folders context with selinux:<\/p>\n
yum install setroubleshoot<\/pre>\n
And change context to this folder:<\/p>\n
semanage fcontext -a -t httpd_sys_content_t \"\/mnt\/nfs\/kadeco\/installs(\/.*)?\"
restorecon -R \/mnt\/nfs\/kadeco\/installs
rm \/etc\/httpd\/conf.d\/welcome.conf
systemctl restart httpd.service<\/pre>\n
Have a fun \ud83d\ude42<\/p>\n\n\n
<\/p>\n ","protected":false},"excerpt":{"rendered":"
Sometimes I need to use fast, simple and no-password storage over the network in bash, or an ISO storage for Xenserver. So nfs sharing is the best way for this.\u00a0 I have a linux machine with centos 7 and available storage of 1,5TB disk. So, prepare the disk: fdisk -l \/dev\/xvdb > n (new partition), … Continue reading How to set up nfs server on centos 7\/8, and display content via httpd<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[3,116,33,34,35],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-centos","tag-centos","tag-centos-8","tag-exports","tag-nfs","tag-server"],"_links":{"self":[{"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":7,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":916,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/916"}],"wp:attachment":[{"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gonscak.sk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}