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"Disk Management"
So I have Amanda backup server configured in 2 servers as refer to my previous post here. In that setting, I was using Amanda to backup one of the server’s directory /home/webby/public_html in server sv101.krispykream.net. Now I need to restore all files in directory/home/webby/public_html/blog from latest backup.
Configure Amanda Client for Restore
1. Login [...]
I am going to setup Amanda backup into our office’s server to enable network backup to all of our servers located in different geographical area. The idea will be as below:
All servers are running on CentOS 6 64bit with iptables and SELINUX have been turned off.
Install Amanda Server [...]
We just received a new storage server from DELL which will be used to host web server cluster. We will use Openfiler, a free NAS/SAN operating system to manage our RAID-10 storage.
The problem we have now is our storage server has no optical drive and we do not have any external optical drive available [...]
Scanning on FTP is really important in order to protect your server from the most popular file transferring method available to users. In my case, my boss wants to make sure every uploaded files via FTP is free from virus, trojan or malware.
In order to achieve this, I need to use PureFTPd as the [...]
LVM snapshot is an exact copy of an LVM partition that has all the data from the LVM volume from the time the snapshot was created. The advantages of this is that we can get reliable backup in a small matter of time without suspending the MySQL service. Normal backup using mysqldump or mysqlhotcopy will [...]
My developer team requesting me to mount an external FTP account into our web server so they can do file manipulation process between them. To achieve this, I need to mount FTP as file system, so they transparently not realized that they are browsing to an FTP account which has been localized into the server.
[...]
Backup is the first thing-to-do and should not be forgotten by a good system administrator. Since cPanel has their built-in backup creator as well as backup management system, we can take advantage of this tool and use them to suit our needs. In my situation, we have many cPanel accounts and some of them is [...]
If you have a SAN storage, or a dedicated server to serve as file and storage service to other server, I am suggesting you to use Openfiler. This operating system is specifically built to manage and deliver file-based Network Attached Storage and block-based Storage Area Networking in a single framework.
In this tutorial, I will not [...]
In my case, I need to setup one web server without internet connection. As I am convenience to use yum for any package installation in Linux, we need to tell yum to look for the CentOS DVD instead Internet (default).
Kindly find variables as below:
OS: CentOS 6 64bit
DVD path: /mnt/cdrom
Mount point: /media/CentOS
[...]
I am encountering following error in /var/log/messages:
Aug 15 03:55:42 hostname smartd[2366]: Device: /dev/sda, 1 Currently unreadable (pending) sectors
Which cause the / partition to be mounted as read-only. The server is accessible anyway but you cant do anything much inside. Lets troubleshoot this.
Collecting Information/Troubleshooting
I see read-only filesystem mounted when creating a test [...]
Some server that I am working with has no swap space mounted in the server. Swap is necessary as backup of our physical memory in case system needs more memory than what it has at that time and also increase application loading speed especially when starting and closing application.
Swap space can be setup in [...]
Ext4 (fourth extended file system) is the successor of current widely used Ext3 filesystem in Linux.
Since Ext4 filesystem already in the market, we can fully utilise this and improve IO (input/output) performance. Ext4 is well-known to be good in handling large storage, reduce up to 9 times of file system checking (fsck) time compare [...]
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