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Showing posts from August, 2012

Secondary dns zone transfer from tinydns to bind

First create necessary users: # useradd dnslog # useradd axfrdns
axfrdns-conf command creates axfrdns configuration files and folders: (env, log, Makefile, run, tcp) # axfrdns-conf axfrdns dnslog /etc/axfrdns /etc/tinydns <tiny dns server ip address>

LinuxCon North America 2012

LinuxCon is the leading annual technical conference in North America, providing a much needed collaboration and education space for the Linux community. Launched in 2009, LinuxCon has quickly become known for offering top speaking talent, a cross-section of the leading players in the Linux community, innovative and timely content, a wide variety of opportunities for attendee collaboration and a place for smaller groups to co-locate for topic-specific mini-summits and workgroups. Co-located with the Linux Kernel Summit and the Linux Plumbers Conference in 2012, LinuxCon North America promises to deliver sponsors the opportunity to connect with the leaders of the Linux community in one place.
Who Should Attend: Software Developers, Linux IT Professionals, Corporate End Users, Senior Business Executives, IT Operations Experts, System Administrators, Students, Media and anyone else with an interest in the Linux ecosystem.
https://events.linuxfoundation.org/events/linuxcon

The Northeast GNU/Linuxfest

The northeast GNU/Linux fest is an advocate of Free software. The 4 Freedoms that should be concerned about.
The freedom to run the program, for any purpose (freedom 0).
The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1). Access to the source code is a precondition for this.
The freedom to redistribute copies so you can help your neighbor (freedom 2).
The freedom to distribute copies of your modified versions to others (freedom 3). By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.
http://www.northeastlinuxfest.org/

Redhat linux default runlevels

Default runlevel. The runlevels used by RHS are:
0 - halt (Do NOT set initdefault to this) 1 - Single user mode 2 - Multiuser, without NFS (The same as 3, if you do not have networking) 3 - Full multiuser mode 4 - unused 5 - X11 6 - reboot (Do NOT set initdefault to this)

last command man page

LAST,LASTB(1)      Linux System Administrator’s Manual LAST,LASTB(1)

NAME        last, lastb - show listing of last logged in users

Redhat Linux ssh login using Active Directory Account

DNS infrastructure should work well In order that winbind funcitons properly. So check it first. # host -t srv _kerberos._tcp.yourdomain.com _kerberos._tcp.yourdomain.com has SRV record 0 100 88 adsrv1.yourdomain.com.  _kerberos._tcp.yourdomain.com has SRV record 0 100 88 adsrv2.yourdomain.com. 
Necessary packages should be installed. # yum installauthconfigpam_krb5samba-common

Creating a JEE project in eclipse with JBoss

From the eclipse menu: Select File > New > Other

ToolKit for Oracle Database

OraToolKit is a collection of tools to ease and optimize Oracle setups throughout the whole lifecycle. With its all-purpose usage it can also be called "The Swiss Army Knife for Oracle". Released as open source software it provides to companies using Oracle database technology many benefits. Those can be seen from financial, efficiency as well as from usability point of view. Goal of this open source project is to help reducing total cost of ownership (TCO) when running Oracle on Unix based systems. Supported are currently Linux and Solaris. In Q3/Q4 there there will be a new OTK release which will support IBM AIX as well as HP-UX. Future releases of an OTK light running on Microsoft Windows operating systems may not be excluded.

Gartner Symposium/ITxpo 2012

The World's Most Important Gathering of CIOs and Senior IT Executives
Disruptive technologies like cloud, social, mobile and information are revolutionizing business. The opportunity to leverage information innovation is right before us. The most successful CIOs and senior IT leaders will embrace the future by turning their attention to growth, cost reduction and competitive differentiation — all while filtering out the unproductive "noise" that can compromise clarity and purpose.
Faced with fundamental changes to the enterprise ecosystem, IT leaders must acquire a new ability to Focus on the issues that matter, Connect people and ideas, and Lead with creativity and confidence.
5 - 8 November 2012 Barcelona, Spain

Citrix Synergy 2012 Barcelona

Citrix Synergy in Barcelona, 17 to 19 October, is featuring even more opportunities than last year to learn new skills and new ways to optimise your IT environment.

• Four technical session tracks • In-depth, intensive Instructor-led and Self-paced Learning Labs • Free Citrix certification exam to advance your professional development • Geek Speak Live!, the interactive, open forum on technical topics

host utility for redhat linux

host is a simple utility for performing DNS lookups. In order to use it dnsutil package should be installed on redhat systems.
For example if you want to check kerberos srv records from AD (Active Directory) infrastructure.
# host -t srv _kerberos._tcp.example.local _kerberos._tcp.example.local has SRV record 0 100 88 srv1.example.local. _kerberos._tcp.example.local has SRV record 0 100 88 srv2.example.local. _kerberos._tcp.example.local has SRV record 0 100 88 srv3.example.local. _kerberos._tcp.example.local has SRV record 0 100 88 srv4.example.local.