{"id":67598,"date":"2021-07-25T21:30:09","date_gmt":"2021-07-26T01:30:09","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/autofs-and-mounting-in-linux-redhat-centos-devops-rhcsa\/"},"modified":"2021-07-25T21:30:09","modified_gmt":"2021-07-26T01:30:09","slug":"autofs-and-mounting-in-linux-redhat-centos-devops-rhcsa","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=67598","title":{"rendered":"AutoFS and Mounting in Linux\/Redhat\/CentOS #DevOps #RHCSA"},"content":{"rendered":"

AutoFS and Mounting in Linux\/Redhat\/CentOS<\/strong><\/p>\n

echo “AutoFS – Automatic FS system Mounting – Dec 26th, 2017 by Sayed”<\/p>\n

check if Autofs installed or not
\nyum list installed | grep autofs<\/p>\n

I just installed; hence it is there
\nyou can install with yum -y install autofs<\/p>\n

944 yum -y install autofs<\/p>\n

then you can enable autofs
\n946 systemctl status autofs
\n947 systemctl start autofs
\n948 systemctl enable autofs<\/p>\n

enable – will start this service at reboot\/system start<\/p>\n

AutoFS in general does not use \/etc\/fstab
\nAutoFS uses \/etc\/mtab file
\nAlso, AutoFS has some files under \/etc and starting with auto. You can also define which file will contain the mounting mapping. the file that will act like \/etc\/fstab for autofs<\/p>\n

AutoFS has direct mapping and indirect mapping
\nlet’s see some files under \/etc for autofs<\/p>\n

955 ls \/etc\/auto*<\/p>\n

The files<\/strong><\/p>\n

\/etc\/auto.direct \/etc\/autofs.conf \/etc\/autofs_ldap_auth.conf \/etc\/auto.master \/etc\/auto.misc \/etc\/auto.net \/etc\/auto.smb \/etc\/auto.master.d:<\/p>\n

I saw to use \/etc\/auto.master for configuring which file will do the mapping for direct mounting.
\nI saw to use \/etc\/auto.misc for configuring which file will do the mapping for indirect mounting for AutoFS.<\/p>\n

One more config file is under: \/etc\/sysconfig\/autofs<\/p>\n

961 cat \/etc\/sysconfig\/autofs<\/p>\n

the content
\n#
\n# Init system options
\n#
\n# If the kernel supports using the autofs miscellanous device
\n# and you wish to use it you must set this configuration option
\n# to “yes” otherwise it will not be used.
\n#
\nUSE_MISC_DEVICE=”yes”
\n#
\n# Use OPTIONS to add automount(8) command line options that
\n# will be used when the daemon is started.
\n#
\n#OPTIONS=””
\n#<\/p>\n

For mounting NFS i.e. remote\/network file-systems\/folders – we can use the regular mounting i.e. \/etc\/fstab and mount command. However, that is kinda manual. We can mount NFS using AutoFS that will be automatic mount<\/p>\n

We use AutoFS for LDAP clients to auto mount Users’ home directories. We just configure, then the mounting happens automatically. You remember that getent passwd user-name mounted the remote users’ home directory into local system. we used \/etc\/auto.master to tell that auto.guests will have the mounting configurations. then on \/etc\/auto.guests file – we configured that users’ home directories will be mounted on \/home\/guests. you can check our notes on LDAP client configuration<\/p>\n

979 cat \/etc\/auto.master
\n980 vim \/etc\/auto.master<\/p>\n

we added the following line on \/etc\/auto.master
\n\/etc\/auto.guests \/etc\/auto.direct<\/p>\n

it just tells that AutoFS will consult \/etc\/auto.guests file for direct mapping<\/p>\n

 <\/p>\n

984 vim \/etc\/auto.guests
\nwe added the following line on \/etc\/auto.guests
\n\/home\/guests 192.168.1.15:\/nfsrh<\/p>\n

it just tells remote \/nfsrh will be automatically mounted to \/home\/guests
\nyou can try to restart autofs<\/p>\n

989 systemctl restart autofs<\/p>\n

 <\/p>\n

Indirect Map
\nindirectly mounted points are only visible when accessed
\nautomatically mounts shares under one common parent directory
\neach indirect map put only one entry in the mtab file
\nlocal and indirect maps cannot exist in the same parent directory
\nfor indirect mapping – you use \/etc\/auto.misc file From: http:\/\/sitestree.com\/?p=12070
Categories:DevOps, RHCSA
Tags:
Post Data:2017-12-26 15:27:27<\/p>\n

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AutoFS and Mounting in Linux\/Redhat\/CentOS echo “AutoFS – Automatic FS system Mounting – Dec 26th, 2017 by Sayed” check if Autofs installed or not yum list installed | grep autofs I just installed; hence it is there you can install with yum -y install autofs 944 yum -y install autofs then you can enable autofs … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-67598","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":14040,"url":"http:\/\/bangla.sitestree.com\/?p=14040","url_meta":{"origin":67598,"position":0},"title":"AutoFS and Mounting in Linux\/Redhat\/CentOS","author":"Sayed","date":"December 26, 2017","format":false,"excerpt":"AutoFS and Mounting in Linux\/Redhat\/CentOS echo \"AutoFS - Automatic FS system Mounting - Dec 26th, 2017 by Sayed\" check if Autofs installed or not yum list installed | grep autofs I just installed; hence it is there you can install with yum -y install autofs 944 yum -y install autofs\u2026","rel":"","context":"In "\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix"","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":67586,"url":"http:\/\/bangla.sitestree.com\/?p=67586","url_meta":{"origin":67598,"position":1},"title":"Create your own yum repo in Centos\/Redhat #DevOps #RHCSA","author":"Author-Check- Article-or-Video","date":"July 25, 2021","format":false,"excerpt":"Yum is a software installation manager for Redhat Linux and Related. yum is a better tool than rpm. Here, we will take the rpm packages as come with Redhat\/Centos and then we will host those packages on our own Repo Server for yum. i.e. yum will use this Repo to\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14029,"url":"http:\/\/bangla.sitestree.com\/?p=14029","url_meta":{"origin":67598,"position":2},"title":"TCP Wrappers in Linux\/CentOS\/Redhat\/Fedora","author":"Sayed","date":"December 24, 2017","format":false,"excerpt":"TCP Wrappers in Linux\/CentOS\/Redhat\/Fedora yum info tcp_wrappers yum install tcp_wrappers-devel.x86_64 506 reboot 507 ifdown ens33 508 ifup ens33 509 yum install tcp_wrappers-devel.x86_64 510 yum -y install tcp_wrappers-devel.x86_64 511 ls \/var\/ftp\/pub\/Packages\/ 512 ls \/etc\/yum.repos.d\/local.repo 513 vim \/etc\/yum.repos.d\/local.repo 514 systemctl status vsftpd 515 systemctl start vsftpd 516 systemctl enable vsftpd 517 yum\u2026","rel":"","context":"In "\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix"","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":21833,"url":"http:\/\/bangla.sitestree.com\/?p=21833","url_meta":{"origin":67598,"position":3},"title":"TCP Wrappers in Linux\/CentOS\/Redhat\/Fedora #Unix\/Linux #GNU\/Linux #Linux #GNU\/Linux #GNU\/Linux #Linux #GNU\/Linux #DevOps #Everything Linux #RHCSA","author":"Author-Check- Article-or-Video","date":"March 7, 2021","format":false,"excerpt":"yum info tcp_wrappers yum install tcp_wrappers-devel.x86_64 506 reboot 507 ifdown ens33 508 ifup ens33 509 yum install tcp_wrappers-devel.x86_64 510 yum -y install tcp_wrappers-devel.x86_64 511 ls \/var\/ftp\/pub\/Packages\/ 512 ls \/etc\/yum.repos.d\/local.repo 513 vim \/etc\/yum.repos.d\/local.repo 514 systemctl status vsftpd 515 systemctl start vsftpd 516 systemctl enable vsftpd 517 yum -y install tcp_wrappers-devel.x86_64 518\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14013,"url":"http:\/\/bangla.sitestree.com\/?p=14013","url_meta":{"origin":67598,"position":4},"title":"Centos\/Redhat \u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f yum \u0987\u09a8\u09cd\u09b8\u099f\u09b2\u09be\u09b0 \u09b8\u09be\u09b0\u09cd\u09ad\u09be\u09b0 \u0995\u09bf\u09ad\u09be\u09ac\u09c7 \u0995\u09a8\u09ab\u09bf\u0997\u09be\u09b0 \u0995\u09b0\u09ac\u09c7\u09a8","author":"Sayed","date":"December 7, 2017","format":false,"excerpt":"Centos\/Redhat \u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f yum \u0987\u09a8\u09cd\u09b8\u099f\u09b2\u09be\u09b0 \u09b8\u09be\u09b0\u09cd\u09ad\u09be\u09b0 \u0995\u09bf\u09ad\u09be\u09ac\u09c7 \u0995\u09a8\u09ab\u09bf\u0997\u09be\u09b0 \u0995\u09b0\u09ac\u09c7\u09a8 Mount Installer ISO mkdir \/mnt\/dvd1 mount \/dev\/sr0 \/mnt\/dvd1 Check if FTP server is installed systemctl status vsftpd systemctl start vsftpd Install ftp Server. Using rpm as yum is not available yet [default yum needs the internet, kindof] cd \/mnt\/dvd1\/Packages\/ rpm -ivh\u2026","rel":"","context":"In "\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix"","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":20401,"url":"http:\/\/bangla.sitestree.com\/?p=20401","url_meta":{"origin":67598,"position":5},"title":"Learn some Centos\/Redhat Linux: RHCE: MariaDB Administration on Redhat\/Fedora\/CentOS","author":"Author-Check- Article-or-Video","date":"February 20, 2021","format":false,"excerpt":"RHCE: MariaDB Administration on Redhat\/Fedora\/CentOS Check if mariaDB is installed or not 130 yum list installed | grep ^mariadb mariaDB originated from MySQL - after MySQL Got Bought by Oracle 133 yum list installed | grep ^mariadb I see - installed though not completely Output: mariadb-libs.x86_64 1:5.5.52-1.el7 @anaconda There are\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/67598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=67598"}],"version-history":[{"count":0,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/67598\/revisions"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=67598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=67598"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=67598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}