Linux Storage - linux-training.be

1 Linux StoragePaul CobbautLinux StoragePaul CobbautPaul CobbautPublication date 2015-05-24 CESTA bstractThis book is meant to be used in an instructor-led training. For self-study, the intent is to readthis book next to a working Linux computer so you can immediately do every subject, practicingeach book is aimed at novice Linux system administrators (and might be interesting and usefulfor home users that want to know a bit more about their Linux system). However, this bookis not meant as an introduction to Linux desktop applications like text editors, browsers, mailclients, multimedia or office information and free .pdf available at .Feel free to contact the author: Paul Cobbaut: to the Linux Training project are: Serge van Ginderachter: build scripts; infrastructure setup; minor stuff Hendrik De Vloed: scriptWe'd also like to thank our reviewers: Wouter Verhelst: Geert Goossens: Elie De Brauwer: Christophe Vandeplas: Bert Desmet: Rich Yonts: 2007-2015 Paul CobbautPermission is granted to copy, distribute and/or modify this document under the terms of theGNU Free Documentation License, Version or any later version published by the FreeSoftware Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-CoverTexts.

2 A copy of the license is included in the section entitled 'GNU Free DocumentationLicense'.iiiTable of ContentsI. file security .. 11. standard file permissions .. file ownership .. list of special files .. permissions .. practice: standard file permissions .. solution: standard file permissions .. 132. advanced file permissions .. sticky bit on directory .. setgid bit on directory .. setgid and setuid on regular files .. setuid on sudo .. practice: sticky, setuid and setgid bits .. solution: sticky, setuid and setgid bits .. 193. access control lists .. acl in /etc/fstab .. getfacl .. setfacl .. remove an acl entry .. remove the complete acl.

3 The acl mask .. eiciel .. 244. file links .. inodes .. about directories .. hard links .. symbolic links .. removing links .. practice : links .. solution : links .. 31II. disk management .. 325. disk devices .. terminology .. device naming .. discovering disk devices .. erasing a hard disk .. advanced hard disk settings .. practice: hard disk devices .. solution: hard disk devices .. 476. disk partitions .. about partitions .. discovering partitions .. partitioning new disks .. about the partition table .. GUID partition table .. labeling with parted .. practice: partitions.

4 Solution: partitions .. 597. file systems .. about file systems .. common file systems .. putting a file system on a partition .. tuning a file system .. checking a file system .. practice: file systems .. 68 Linux solution: file systems .. 698. mounting .. mounting local file systems .. displaying mounted file systems .. from start to finish .. permanent mounts .. securing mounts .. mounting remote file systems .. practice: mounting file systems .. solution: mounting file systems .. 799. troubleshooting tools .. lsof .. fuser .. chroot .. iostat .. iotop .. vmstat .. practice: troubleshooting tools.

5 Solution: troubleshooting tools .. 8910. introduction to uuid's .. about unique objects .. tune2fs .. uuid .. uuid in /etc/fstab .. uuid as a boot device .. practice: uuid and filesystems .. solution: uuid and filesystems .. 9511. introduction to raid .. hardware or software .. raid levels .. building a software raid5 array .. practice: raid .. solution: raid .. 10312. logical volume management .. introduction to lvm .. lvm terminology .. example: using lvm .. example: extend a logical volume .. example: resize a physical Volume .. example: mirror a logical volume .. example: snapshot a logical volume .. verifying existing physical volumes.

6 Verifying existing volume groups .. verifying existing logical volumes .. manage physical volumes .. manage volume groups .. manage logical volumes .. practice : lvm .. solution : lvm .. 12613. iSCSI devices .. iSCSI terminology .. iSCSI Target in RHEL/CentOS .. iSCSI Initiator in RHEL/CentOS .. iSCSI target on Debian .. iSCSI target setup with dd files .. ISCSI initiator on ubuntu .. using iSCSI devices .. iSCSI Target RHEL7/CentOS7 .. 141 Linux iSCSI Initiator RHEL7/CentOS7 .. practice: iSCSI devices .. solution: iSCSI devices .. 14614. introduction to multipathing .. install multipath .. configure multipath .. network .. start multipathd and iscsi.

7 Multipath list .. using the device .. practice: multipathing .. solution: multipathing .. 157 III. backup management .. 15915. backup .. About tape devices .. Compression .. tar .. Backup Types .. dump and restore .. cpio .. dd .. split .. practice: backup .. 167IV. mysql database .. 16916. introduction to sql using mysql .. installing mysql .. accessing mysql .. mysql databases .. mysql tables .. mysql records .. joining two tables .. mysql triggers .. 183V. Introduction to Samba .. 18517. introduction to samba .. verify installed version .. installing samba .. documentation.

8 Starting and stopping samba .. samba daemons .. the SMB protocol .. practice: introduction to samba .. 19518. getting started with samba .. /etc/ .. /usr/bin/testparm .. /usr/bin/smbclient .. /usr/bin/smbtree .. server string .. Samba Web Administration Tool (SWAT) .. practice: getting started with samba .. solution: getting started with samba .. 20519. a read only file server .. Setting up a directory to share .. configure the share .. restart the server .. verify the share .. a note on netcat .. practice: read only file server .. solution: read only file server .. 213 Linux Storagevi20. a writable file server .. set up a directory to share.

9 Share section in .. configure the share .. test connection with windows .. test writing with windows .. How is this possible ? .. practice: writable file server .. solution: writable file server .. 21821. samba first user account .. creating a samba user .. ownership of files .. /usr/bin/smbpasswd .. /etc/samba/smbpasswd .. passdb backend .. forcing this user .. practice: first samba user account .. solution: first samba user account .. 22322. samba authentication .. creating the users on Linux .. creating the users on samba .. security = user .. configuring the share .. testing access with net use.

10 Testing access with smbclient .. verify ownership .. common problems .. practice : samba authentication .. solution: samba authentication .. 23023. samba securing shares .. security based on user name .. security based on ip-address .. security through obscurity .. file system security .. practice: securing shares .. solution: securing shares .. 23624. samba domain member .. changes in .. joining an Active Directory domain .. winbind .. wbinfo .. getent .. file ownership .. practice : samba domain member .. 24425. samba domain controller .. about Domain Controllers .. About security modes .. About password backends.