VFS Filesystem Structure Linux Preview

NETWORK ADMINISTRATION LINUX PREVIEW

The Virtual File System Structure ,[object Object],[object Object],[object Object],[object Object]

Hệ thống tập tin EXT2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I-Node and Data block in EXT2 FS

I-Node and Data block in EXT2 FS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I-Node and Data block in EXT2 FS ,[object Object],[object Object],[object Object],[object Object]

Directories in EXT2 FS Directories are implemented as a special type of files . Actually, a directory is a file containing a list of entries . Each entry contains an inode number and a file name .

Link (Liên kết) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hard Link – Symbolic Link ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Permissions The first item, which specifies the file type, can show one of the following: d : a directory - (dash) : a regular file (rather than directory or link) l : a symbolic link to another program or file Beyond the first item, in each of the following three sets, you will see one of the following: r : file can be read w : file can be written to x : file can be executed (if it is a program) - ( rw- ) ( rw- ) ( r-- ) 1 sam sam | | | | Type owner group others

Using File System Commands chmod ,[object Object],[object Object],[object Object]

Chmod : Using a flag method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chmod : Using a flag method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changing Permissions With Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],For sneakers.txt , here are the numerical permissions settings: - ( r w - ) ( r w - ) ( r - - ) | | | 4+2+0 4+2+0 4+0+0

Changing Permissions With Numbers ,[object Object],[object Object]

Changing Permissions With Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],Lệnh umask : Quyền hạn mặc định ví dụ : file.txt có quyền hạn mặc định là 664 ; folder là 775

Lệnh umask : Quyền hạn mặc định ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sticky bit ,[object Object],[object Object],[object Object]

Sticky bit ,[object Object],[object Object]

The Root Directory ,[object Object]

Running Programs at Boot Time ,[object Object],[object Object]

Users and Groups ,[object Object],[object Object],[object Object],[object Object],[object Object]

User and Group Management Tools ,[object Object],[object Object],[object Object],[object Object]

Adding a User ,[object Object],[object Object],[object Object]

The command line options for useradd ,[object Object],[object Object],[object Object],[object Object],[object Object]

The command line options for useradd ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Delete a user account - userdel ,[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object]

change Command Line Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adding a Group ,[object Object],[object Object]

User Private Groups ,[object Object],[object Object],[object Object],[object Object]

Group Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/passwd ,[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/shadow ,[object Object],[object Object],[object Object]

Determining Your IP Address ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changing Your IP Address ,[object Object],[object Object],[object Object],[object Object]

Interface Configuration Files ,[object Object],[object Object]

Example configuration file ,[object Object],[object Object],[object Object],[object Object]

the configurable parameters in an Ethernet interface configuration file ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

the configurable parameters in an Ethernet interface configuration file ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interface Control Scripts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How To Change Your Default Gateway ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/sysconfig/network ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

To Change The Duplex Setting Of Your NIC ,[object Object],[object Object],[object Object],[object Object]

To Change The Duplex Setting Of Your NIC ,[object Object],[object Object],[object Object]

Configuring Your /etc/hosts File ,[object Object],[object Object],[object Object],[object Object]

Configuring Your /etc/hosts File ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Loopback Interface's Localhost Entry ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GUI Network Configuration ,[object Object],[object Object]

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object],[object Object],[object Object]

Managing Hosts ,[object Object],[object Object]

Activating Devices ,[object Object],[object Object]

Device Aliases ,[object Object],[object Object],[object Object],[object Object]

Activating Devices To verify that the alias has been activated, use the command ifconfig. The output should show the device and the device alias with different IP address

VFS Filesystem Structure Linux Preview

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