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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>

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.

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.