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File creation time in EXT4

Most Linux administrators are aware of the three standard timestamps associated with a file, i.e. ctime, atime and mtime. What you may not be aware of is that many of the modern filesystems on Linux such as EXT4 and BTRFS also support a file creation timestamp. Here is what the stat command outputs on RHEL 6.4: # stat helloworld File: `helloworld’ Size: 6470 Blocks: 16 IO Block: 4096 regular file Device: 803h/2051d Inode: 396942 Links: 1 Access: (0775/-rwxrwxr-x) Uid: ( 500/ fpm) Gid: ( 500/ fpm) Access: 2014-05-14 06:30:45.107878096 -0700 Modify: 2014-05-14 06:30:36.337878203 -0700 Change: 2014-05-14 06:30:36.337878203 -0700 and here

RHEL7 XFS Is A Step Backwards Forensically

Red Hat changed the default filesystem in Red Hat Enterprise Linux 7 (RHEL 7) to XFS. In RHEL 6, the default filesystem was EXT4. The rational for this change, according Denise Dumas, Director of Software Engineering for Red Hat was because “it is a better match for our enterprise customers”. I agree with this position, which incidentally is the position SUSE have maintained for a long time, except that forensically it is somewhat of a step backwards. You can examine a XFS file’s metadata using xfs_db but it is much easier to use the xfs_io utility. Just like xfs_db, xfs_io

Enable VMware Workstation tools in RHEL7

If you install the minimum version of Red Hat Enterprise 7 as a VMware Workstation guest, you will have to overcome a number of obstacles to installing the VMware Tools. Firstly, no ifconfig utility is installed. To install this utility, install the net-tools package. # yum install net-tools Next, check to see if the open-vm-tools package was installed. If not install it from your DVD or ISO. You may have to first create a repo entry similar to the following: [dvd] name=red Hat Enterprise Linix [DVD] baseurl=file:///run/media/<FIXTHIS>/RHEL-7.0 Server.x86_64 enabled=1 gpgcheck=0 and then run: # yum install open-vm-tools I found that

UCSM Emulator Updated

Cisco UCS Platform Emulator, Release 2.2 (2cPE1), a minor point release, was announced June 4th 2014. The emulator, by the way, is based on CentOS. It adds support for the following new hardware: B260-M4 and B460-M4 blade servers C460-M4 rack server UCSB-F-LSI-400S, UCSB-F-LSI-800M, UCSB-F-FIO-785M, UCSB-F-FIO-365M storage accelerators The default configuration is changed from Mark 2 to Mark 3 blade and rack-mounted servers. All in all a solid point release which installs without a problem in VMware Workstation or Oracle Virtual Box.