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=INVESTIGATION 1: Adjusting File System Sizes with LVM=
= INVESTIGATION 1: File System Management =Monitoring and ensuring adequate space for a Linux file-system is considered to be an important task for a sys admin.
We take for granted that a file-system must be mounted (for example the root partition) in order for a Linux system to be usable upon system start-up. The '''/etc/fstab''' (file system table) contains entries to mount various file systems automatically upon start-up of the Linux system.
The Linux sys admin also has the ability to manually '''mount''' (connect) and '''un-mount''' (disconnect) partitions in order to perform maintenance on the file system (for example un-mounting the '''/home''' partition to install software and prevent users from logging in during that process).
We will now learn how to perform these operations (including monitoring of disk space usage) in === Part 1.: Obtaining System Information with LVM ===
== Part 1: Mounting We have seen that maintaining unneeded '''packages can be a security risk''' due to the unnecessary increase in the complexity of your system. Similarly, it is also unnecessarily hazardous, and Un-mounting Partitions ==even more so, to leave unneeded services running. In this investigation, we will learn how to '''control services, and turn off those services that we think are not necessary to help reduce security risks'''.}}
# x
'''Answer the Part 1 observations / questions in your lab log book.'''
=== Part 2: Obtaining File System Information Adjusting Partition Sizes with LVM===
# x
'''Answer the Part 2 observations / questions in your lab log book.'''
# x
=INVESTIGATION '''Answer Part 2: Adjusting File System Sizes with LVM=observations / questions in your lab log book.'''
Monitoring ===Part 3: Adding Virtual Hard Disks and ensuring adequate space for a Linux file-system is considered to be an important task for a sys admin.Managing with LVM===
=== Part 1: Obtaining System Information with LVM ===x
We have seen that maintaining unneeded '''packages can be a security risk''' due to the unnecessary increase in the complexity of your system. Similarly, it is also unnecessarily hazardous, and even more so, to leave unneeded services running. In this investigation, we will learn how to '''control services, and turn off those services that we think are not necessary to help reduce security risks'''.}}
# x
'''Answer Part 1 observations / questions in your lab log book.'''
'''Answer Part 3 observations / questions in your lab log book.'''
===Part 2: Adjusting Partition Sizes with LVM===
x= INVESTIGATION 2: Mounting / Un-Mounting File-systems & Monitoring Disk Space =
We take for granted that a file-system must be mounted (for example the root partition) in order for a Linux system to be usable upon system start-up. The '''/etc/fstab''' (file system table) contains entries to mount various file systems automatically upon start-up of the Linux system.
# xThe Linux sys admin also has the ability to manually '''mount''' (connect) and '''un-mount''' (disconnect) partitions in order to perform maintenance on the file system (for example un-mounting the '''/home''' partition to install software and prevent users from logging in during that process).
We will now learn how to perform these operations (including monitoring of disk space usage) in Part 1.
'''Answer == Part 2 observations / questions in your lab log book.'''1: Mounting and Un-mounting Partitions ==
===Part 3: Adding Virtual Hard Disks and Managing with LVM===# x
x'''Answer the Part 1 observations / questions in your lab log book.'''
== Part 2: Monitoring Disk Space ==
# x
'''Answer the Part 3 2 observations / questions in your lab log book.'''