Frequently Asked Questions About Linux / UNIX » File system http://www.cyberciti.biz/faq Every answer asks a more beautiful question. Fri, 03 Feb 2012 22:38:32 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Linux: Mount Disk Partition Using LABELhttp://www.cyberciti.biz/faq/rhel-centos-debian-fedora-mount-partition-label/ http://www.cyberciti.biz/faq/rhel-centos-debian-fedora-mount-partition-label/#comments Thu, 22 Sep 2011 10:09:36 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=11126 How do I mount the filesystem (disk partition) using the filesystem label on the ext3/ext4 file system located on USB disk or hard disk under Linux operating systems?]]> http://www.cyberciti.biz/faq/rhel-centos-debian-fedora-mount-partition-label/feed/ 1 Linux: NFS4 mount Error reason given by server: No such file or directoryhttp://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/ http://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/#comments Tue, 06 Sep 2011 23:41:49 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=11006 I recently installed NFS server v4 on my HP Linux server. However, I'm not able to mount it from Linux nfs4 client using the following command:
mount.nfs4 server2:/data /data
I'm getting the following error:
mount.nfs4: mounting server2:/data failed, reason given by server: No such file or directory
How do I fix this problem?]]> http://www.cyberciti.biz/faq/mount-nfs4-reason-given-by-server-no-such-file-directory/feed/ 0 RHEL / CentOS Linux: Mount and Access NTFS Partitionhttp://www.cyberciti.biz/faq/redhat-fedora-enable-ntfs3g-support/ http://www.cyberciti.biz/faq/redhat-fedora-enable-ntfs3g-support/#comments Mon, 05 Sep 2011 05:47:11 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=10997 How to enable NTFS support on CentOS Linux version 5 or 6? How do I mount ntfs partition under RHEL 5 or 6?]]> http://www.cyberciti.biz/faq/redhat-fedora-enable-ntfs3g-support/feed/ 9 Linux: Find Alternative Superblockshttp://www.cyberciti.biz/faq/linux-find-alternative-superblocks/ http://www.cyberciti.biz/faq/linux-find-alternative-superblocks/#comments Mon, 06 Dec 2010 21:28:26 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=9526 I think my file system has been damaged. Instead of block 1, I want to use block n as superblock. How do I find out an alternative superblock location under Linux?]]> http://www.cyberciti.biz/faq/linux-find-alternative-superblocks/feed/ 2 UNIX / Linux: HowTo Use unison File Synchronizerhttp://www.cyberciti.biz/faq/unison-file-synchronizer-tool/ http://www.cyberciti.biz/faq/unison-file-synchronizer-tool/#comments Mon, 16 Aug 2010 17:49:46 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8611 I know how to use rsync for Unix systems which synchronizes files and directories from one location to another while minimizing data transfer. However, I would like to synchronizing files between two directories, either on one computer, or between a computer and another server. How do I maintain the same version of files on multiple servers?]]> http://www.cyberciti.biz/faq/unison-file-synchronizer-tool/feed/ 2 Linux incrond inotify: Monitor Directories For Changes And Take Actionhttp://www.cyberciti.biz/faq/linux-inotify-examples-to-replicate-directories/ http://www.cyberciti.biz/faq/linux-inotify-examples-to-replicate-directories/#comments Sun, 18 Jul 2010 00:04:15 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=8437 I want to copy (rsync to remote server) a directory tree whenever file uploaded or deleted in /var/www/html/upload/ directory under Linux operating systems for backup purpose and/or load balancing purpose without getting into complex file sharing setup such as NFS or GFS iscsi storage. How do I monitor /var/www/html/upload/ and its subdirectory for new files and executes rsync command to make copy back to www2.example.com:/var/www/html/upload/?]]> http://www.cyberciti.biz/faq/linux-inotify-examples-to-replicate-directories/feed/ 20 Linux RAM Disk: Creating A Filesystem In RAMhttp://www.cyberciti.biz/faq/howto-create-linux-ram-disk-filesystem/ http://www.cyberciti.biz/faq/howto-create-linux-ram-disk-filesystem/#comments Fri, 05 Mar 2010 11:23:49 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=6651 Software RAM disks use the normal RAM in main memory as if it were a partition on a hard drive rather than actually accessing the data bus normally used for secondary storage such as hard disk. How do I create and store a web cache on a RAM disk to improve the speed of loading pages under Linux operating systems?]]> http://www.cyberciti.biz/faq/howto-create-linux-ram-disk-filesystem/feed/ 19 UNIX / Linux: Explains setuid File Permissionhttp://www.cyberciti.biz/faq/unix-bsd-linux-setuid-file/ http://www.cyberciti.biz/faq/unix-bsd-linux-setuid-file/#comments Wed, 24 Feb 2010 19:51:13 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=6573 What does it mean for a file to be "setuid?" How do keep track of all setuid enabled file?]]> http://www.cyberciti.biz/faq/unix-bsd-linux-setuid-file/feed/ 1 Linux Create Software RAID 1 (Mirror) Arrayhttp://www.cyberciti.biz/faq/linux-creating-software-raid-one-arrays/ http://www.cyberciti.biz/faq/linux-creating-software-raid-one-arrays/#comments Tue, 02 Feb 2010 10:02:59 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=6391 How do I create Software RAID 1 arrays on Linux systems without using GUI tools or installer options? How do I setup RAID 1 array under Linux systems?]]> http://www.cyberciti.biz/faq/linux-creating-software-raid-one-arrays/feed/ 16 Solaris UNIX Configure Disk Quota For UFS File Systemhttp://www.cyberciti.biz/faq/solaris-unix-disk-quota-tutorial/ http://www.cyberciti.biz/faq/solaris-unix-disk-quota-tutorial/#comments Sat, 29 Aug 2009 08:04:53 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5119 How do I configure file system quotas to control how much available storage space can be used on a given UFS file system (such as /export/home) under Solaris UNIX operating systems? ]]> http://www.cyberciti.biz/faq/solaris-unix-disk-quota-tutorial/feed/ 2 FreeBSD: Benchmark The Disks Seek And Transfer Performancehttp://www.cyberciti.biz/faq/freebsd-benchmark-measurement-transfer-performance-disk-io/ http://www.cyberciti.biz/faq/freebsd-benchmark-measurement-transfer-performance-disk-io/#comments Sun, 23 Aug 2009 13:54:08 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=4936 How do I perform a simple and rather naive benchmark of the disks seek and transfer performance under FreeBSD operating system? How do I perform a simple measurement of the I/O read command overhead for my RAID-1 array under FreeBSD operating systems?]]> http://www.cyberciti.biz/faq/freebsd-benchmark-measurement-transfer-performance-disk-io/feed/ 0 Samba: Allow Domain Controllers Create Machine Trust Accounts On-the-Flyhttp://www.cyberciti.biz/faq/samba-allow-domain-controllers-create-machine-trust-accounts-on-the-fly/ http://www.cyberciti.biz/faq/samba-allow-domain-controllers-create-machine-trust-accounts-on-the-fly/#comments Sun, 16 Aug 2009 09:06:20 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=4829 How do I allow domain controllers to create machine trust accounts on-the-fly under RHEL CentOS Linux version 5.x?]]> http://www.cyberciti.biz/faq/samba-allow-domain-controllers-create-machine-trust-accounts-on-the-fly/feed/ 0 Linux Disable Shell / FTP Access For a User Accounthttp://www.cyberciti.biz/faq/how-to-disable-shell-ftp-access-to-newuser/ http://www.cyberciti.biz/faq/how-to-disable-shell-ftp-access-to-newuser/#comments Wed, 24 Jun 2009 10:01:05 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=4201 My users will only be checking mail, and I want to disable FTP access as well as shell access under CentOS Linux. How do I disable shell (SSH) and FTP access to a new or old user under Linux without deleting user account?]]> http://www.cyberciti.biz/faq/how-to-disable-shell-ftp-access-to-newuser/feed/ 14 UNIX / Linux Dump Command Exclude Directories / Fileshttp://www.cyberciti.biz/faq/freebsd-solaris-unix-linux-dump-exclude-directories-files/ http://www.cyberciti.biz/faq/freebsd-solaris-unix-linux-dump-exclude-directories-files/#comments Thu, 11 Jun 2009 12:49:14 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=4029 I'm using dump command to backup file systems to tape and remote server. However, I'm not able to find any option that will allow me to exclude files or directories from backup. How do I force UNIX / Linux / FreeBSD dump command to exclude selected files (such as /var/cache or /usr/basejails) which I don't want to backup?]]> http://www.cyberciti.biz/faq/freebsd-solaris-unix-linux-dump-exclude-directories-files/feed/ 3 Linux Iptables Allow NFS Clients to Access the NFS Serverhttp://www.cyberciti.biz/faq/centos-fedora-rhel-iptables-open-nfs-server-ports/ http://www.cyberciti.biz/faq/centos-fedora-rhel-iptables-open-nfs-server-ports/#comments Thu, 05 Mar 2009 01:42:01 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3426 The portmapper assigns each NFS service to a port dynamically at service startup time. How do I allow legitimate NFS clients to access the NFS server using RHEL / Fedora / CentOS Linux 5.x iptables firewall?]]> http://www.cyberciti.biz/faq/centos-fedora-rhel-iptables-open-nfs-server-ports/feed/ 18 Use BASH nullglob To Verify *.c Files Exists or Not In a Directoryhttp://www.cyberciti.biz/faq/bash-shell-check-for-any-mp3-files-in-directory/ http://www.cyberciti.biz/faq/bash-shell-check-for-any-mp3-files-in-directory/#comments Sun, 01 Mar 2009 18:02:49 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3398 Can you explain me usage of nullglob variable under BASH? How do I check for any *.c files in any directory?]]> http://www.cyberciti.biz/faq/bash-shell-check-for-any-mp3-files-in-directory/feed/ 6 Linux / UNIX Find All World-Writable Directories Have Sticky Bits Sethttp://www.cyberciti.biz/faq/find-all-world-writable-directories-have-stickybitsset-on/ http://www.cyberciti.biz/faq/find-all-world-writable-directories-have-stickybitsset-on/#comments Tue, 24 Feb 2009 19:57:59 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3374 How do I find out all world writable directories have sticky bits set under CentOS Linux server?]]> http://www.cyberciti.biz/faq/find-all-world-writable-directories-have-stickybitsset-on/feed/ 1 xargs: How To Control and Use Command Line Argumentshttp://www.cyberciti.biz/faq/linux-unix-bsd-xargs-construct-argument-lists-utility/ http://www.cyberciti.biz/faq/linux-unix-bsd-xargs-construct-argument-lists-utility/#comments Tue, 17 Feb 2009 15:14:44 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3309 I am trying to use xargs command using shell pipes and not able to understand how to control and use command line arguments. For example I'd like to find out all *.c file located in 100s of sub-directories and move them to another directory called ~/old.src. How do I use command line args with xargs to achieve the same? ]]> http://www.cyberciti.biz/faq/linux-unix-bsd-xargs-construct-argument-lists-utility/feed/ 38 Solaris UNIX Case-Insensitive Find File Searchhttp://www.cyberciti.biz/faq/solaris-unix-do-case-insensitive-find-search/ http://www.cyberciti.biz/faq/solaris-unix-do-case-insensitive-find-search/#comments Fri, 06 Feb 2009 23:11:49 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3237 I'd like to match all filename like foo.c, FOO.C, fOO.c, Foo.C and so on using find command under UNIX. How do I do a case-insensitive find search under Sun Solaris / OpenSolaris UNIX systems? ]]> http://www.cyberciti.biz/faq/solaris-unix-do-case-insensitive-find-search/feed/ 0 Linux Delete Folderhttp://www.cyberciti.biz/faq/linux-delete-folders/ http://www.cyberciti.biz/faq/linux-delete-folders/#comments Wed, 28 Jan 2009 19:04:03 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=5588 How do I delete folders under Linux operating systems?]]> http://www.cyberciti.biz/faq/linux-delete-folders/feed/ 2