By Sander van Vugt
Beginning Ubuntu LTS Server management, moment Edition is the touchstone better half ebook for somebody imposing Ubuntu LTS Server. writer Sander van Vugt introduces the newest server version of Ubuntu Linux, the preferred Linux distribution, to energy clients, approach directors, and programmers and demonstrates the facility and adaptability that the Hardy–Heron Ubuntu Server long-term aid version deals for small networks and company structures alike.
This ebook covers:
- Installing and configuring Ubuntu to make sure safe installations
- Virtual Ubuntu
- Full community and net providers administration
Read or Download Beginning Ubuntu LTS Server Administration: From Novice to Professional (Expert's Voice in Linux) PDF
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Extra info for Beginning Ubuntu LTS Server Administration: From Novice to Professional (Expert's Voice in Linux)
Even though, simply because resizing dossier structures is particularly hard work in depth, I wouldn’t suggest doing it this fashion. There’s consistently a chance that it won’t figure out just because the entire paintings that needs to be performed. So, to stick at the secure facet, umount your quantity earlier than resizing it. 1. Use umount /data to unmount the quantity from the listing /data. 2. ahead of shrinking the amount itself, you need to scale down the dossier procedure used on it. Use resize2fs /dev/system/data 2G to make it a 2 GB dossier process. three. Now you want to resize the amount itself: use lvreduce -L -1G /dev/system/data. four. ultimately, you could mount the amount back. Use mount /dev/system/data /data. five. Use the df -h command to teach the present dimension of the dossier procedure. it's going to be a gigabyte smaller than it was once prior to. during this approach, you realized find out how to decrease a quantity, and naturally you can even bring up its dimension. while expanding a quantity, you simply need to invert the order of the stairs. First, you must expand the scale of the amount, after which the scale of the dossier approach will be elevated to boot. After dismounting the quantity, this can be a two-step method: 1. Use lvextend -L+10G /dev/system/data so as to add 10 GB of obtainable disk house from the amount workforce to the amount. 2. subsequent, use resize_reiserfs -f /dev/system/data. This command will instantly elevate the Reiser dossier process that's sitting within the quantity to the utmost quantity of accessible disk area. you currently know the way to resize a quantity with a Reiser dossier procedure in it. in fact, you could resize Ext3 and Ext2 to boot. to extend the dimensions of an Ext3 dossier procedure, you will use resize2fs -f /dev/system/data. growing LVM Snapshots the best gains of LVM is the prospect to make snapshots. A image is a brand new block equipment that features as an entire reproduction of the unique quantity. This works with no whole replica being made; in basic terms adjustments are written to the photograph, and for that reason a image might be very effective in its use of disk area. A picture captures the dossier approach metadata that's used to supply an outline of all present records on a tool and the blocks on a tool which are occupied or unfastened. So firstly, the photo documents basically administrative info that's used to inform what dossier is at what place. a result of shut relation among the unique gadget and its photo, all reads to the image gadget are redirected to the unique equipment. whilst writing something to the unique gadget, a backup of the previous information is written to the picture equipment. accordingly, the photo quantity will include the unique prestige, while the unique quantity will constantly comprise the replaced prestige. the good thing about this method is that CHAPTER four ■ appearing dossier process administration projects it calls for a really restricted quantity of disk house. for instance, in case you create a photograph of a a hundred GB quantity to exist just for an hour, it has to be sufficiently big to maintain the dossier system’s metadata in addition to all facts that's replaced inside that hour. ordinarily, which means a five GB photograph is good enough.