HSTS (HTTP Strict Transport Security) is a security protocol that force the use of SSL in the comunication between the web browser and the web server. This standard is recently approved (2 october 2012) by the IETF, but the first draft was released in 2010 and it was implemented in some sites like Paypal, Android […]
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This will be helpful for those wants to have direct root login locally and via SSH Comment out the “CONSOLE=/dev/console” line in /etc/default/login.
Modify PermitRootLogin to yes in /etc/ssh/sshd_config Remove “:type=role” from the root entry in /etc/user_attr Remove highlighted part root::::type=role root::: In order to get the fiber channel adapters detail to rescan, list the /sys/class/fc_host directory. In old RHEL host you will not be getting this listing. In this case you can use the /sys/class/scsi_host directory but it will list all internal adapters too.1. In Order to scan New Lun we need to run LIP […] Apache v1.X Download the appropriate intermediate certificate(s). Save it in a text editor such as Notepad as “intermediate.pem” Copy your SSL certificate from the order fulfillment email or log into your GlobalSign Certificate Center account and download it. Paste it into a text editor. Save as “mydomain.pem.” Copy “mydomain.crt” and “intermediate.pem” to the directory in […] (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db.rmohan.com)(PORT=1521))) The listener supports no services The command completed successfully [oracle@db ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.1.0 Production on Tue May 20 00:42:10 2014 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to an idle instance. SQL> select name from v$datafile; select name from v$datafile * ERROR at line 1: ORA-01034: ORACLE […] Moving the control, data and redo log file of an Oracle 11g R2 database to a new location I’m looking into moving the location the control file of my Oracle database into a different location. The new location will be a file system that has been mounted on an IBM Storwize V7000 storage system. Found […] In a production environment profiling is not an option, we have seen several times that our CPU has reached almost 100%, we are running tomcat on Linux, so what is happening? Fortunately, java comes with some great debugging tools, cooperating those tools with Linux built-in tools will let you know what is happening. Here is […] Let us build 3 node Tomcat 8 cluster with Apache web Server – > 192.168.2.40 cluster2 -> 192.168.1.41 cluster3 -> 192.168.1.42 Web server is CLUSTER1 The characteristics of this cluster are: Session affinity: sessions are associated with single servers. Failover: if a server dies, a connection will be directed to the nearest available server. […] [root@cluster1 tomcat-connectors-1.2.40-src]# yum groupinstall ‘Development Tools’ Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.mirror.secureax.com * epel: ftp.jaist.ac.jp * extras: kartolo.sby.datautama.net.id * updates: mirror.smartmedia.net.id Setting up Group Process Checking for new repos for mirrors Package 1:make-3.81-20.el6.i686 already installed and latest version Package 1:pkgconfig-0.23-9.1.el6.i686 already installed and latest version Package binutils-2.20.51.0.2-5.36.el6.i686 already installed […] [root@cluster1 ~]# ssh 192.168.1.41 ssh_exchange_identification: Connection closed by remote host
Problem is need to check the /etc/hosts.allow /etc/hosts.deny Just enter; echo ‘SSHD: ALL’ >> /etc/hosts.allow It sorted it out for me |
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