Linux

Linux Support, Oracle Linux, Red Hat Enterprise Linux, SUSE, Oracle Unbreakable Enterprise Kernel and the Oracle Unbreakable Linux Support Program (ULN) resources, news, and support articles.

Splitting a FlexClone volume from its parent

If you want the FlexClone volume to have its own disk space, rather than using that of its parent, you can split it from its parent using the commands mentioned below.prod_filer_h2> snap list vmdk_volVolume vmdk_volworking... %/used %/total date name---------- ---------- ------------ -------- 31% (29%) 30% (27%) Sep 24 22:46 clone_qa_vmdk_vol.1 (busy,vclone)prod_filer_h2> snap delete vmdk_vol clone_qa_vmdk_vol.1

May 17, 2013 2:05am

Linux

Offline Processing in PHP with Advanced Queuing

Offloading slow batch tasks to an external process is a common
method of improving website responsiveness. One great way to initiate
such background tasks in PHP is to use Oracle Streams Advanced Queuing
in a producer-consumer message passing fashion. Oracle AQ is highly
configurable. Messages can queued by multiple producers. Different
consumers can filter messages. From PHP, the PL/SQL interface to AQ
is used. There are also Java, C and HTTPS interfaces, allowing wide
architectural freedom.

May 16, 2013 1:14pm

Linux

Samba4 Windows AND Linux authentication

IntroductionThis post describes all the millions of configuration files you need to set up on a CLIENT LINUX server / machine in order to ssh to it with your domain credentials. I have this working in a LAB environment with the following caveats:

May 15, 2013 10:05pm

Linux

Ksplice update for CVE-2013-2094

This is a 0-day local privilege escalation found by Tommi Rantala while fuzzing the kernel using Trinity. The cause of that oops was patched in 3.8.10 in commit 8176cced706b5e5d15887584150764894e94e02f.

'spender' on Reddit has an interesting writeup on the details of this exploit.

May 14, 2013 9:11pm

Linux

Getting Started with PHP Zend Framework 2 for Oracle DB

This post shows the changes to the href="http://zf2.readthedocs.org/en/latest/user-guide/overview.html"
>ZF2 tutorial application that allow it to run with Oracle
Database 11gR2.

Oracle Database SQL identifiers are case insensitive by default so
"select Abc from Xyz" is the same as "select abc from xyz". However
the identifier metadata returned to programs like PHP is standardized
to uppercase by default. After executing either query PHP knows that
column "ABC" was selected from table "XYZ".

May 14, 2013 11:56am

Linux

Ubuntu install memcached from source

Following are steps to install memcached from source:

May 14, 2013 5:56am

Linux

iptables allow one ip address

To allow one trusted IP address to access all incoming packets add following line in iptables-precursor:
iptables -A INPUT -s 192.168.2.2 -j ACCEPT
where 192.168.2.2 is the IP address I would like to allow, change the IP address as per your requirement.
After adding above line run following commands to get it updated:
$ source iptables-precursor

$ iptables-save > iptables

In above commands I used relative pats for iptables-precursor and iptables.

May 14, 2013 5:36am