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 Create additional database in Oracle Express edition 

Create additional database in Oracle Express edition

*In my windows i have installed oracle11g express edition i want to create new database for my testing purpose but the express edition doesnot support DBCA utiltiy let us we can discuss How to Create additional database in Oracle Express edition or How to create manual […]

How to list all database names in Oracle

1) To view database select * from v$database; 2) To view instance select * from v$instance; 3) To view all users select * from all_users; 4) To view table and columns for a particular user select tc.table_name Table_name ,tc.column_id Column_id ,lower(tc.column_name) Column_name ,lower(tc.data_type) Data_type ,nvl(tc.data_precision,tc.data_length) Length ,lower(tc.data_scale) Data_scale ,tc.nullable nullable FROM all_tab_columns tc ,all_tables t […]

EXP-00002: error in writing to export file

EXP-00002: error in writing to export file While exporting table or schema using exp/imp utility you may come across below error. Most of the time this error occurs due to insufficient space available on disk.so confirm space is available where you are taking taking export dump and re-run export. [oracle@DEV admin]$ exp test/test@DEV tables=t1,t2,t3,t4 file=exp_tables.dmp […]

CentOS 7 Installs Docker Application Container Engine

Docker is an open source application container engine based on the Go language and open sourced under the Apache 2.0 protocol.

Docker allows developers to package their applications and dependencies into a lightweight, portable container that can then be published to any popular Linux machine or virtualized.

Containers are completely sandboxed and do not […]

Bond Technology Load Balancing in Linux

Problem introduction

When the general enterprise is used to provide NFS service, samba service or vsftpd service, the system must provide 7*24 hours of network transmission service. The maximum network transmission speed it can provide is 100MB/s, but when there are a large number of users accessing, the server’s access pressure is very high, and […]

centos7 openldap

systemctl stop firewalld.service setenforce 0

sed -i s/^SELINUX=enforcing/SELINUX=disabled/g /etc/selinux/config

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.70 master.apple.com master 192.168.1.71 slave.apple.com slave 192.168.1.73 client1.apple.com client1 192.168.1.74 client2.apple.com client2

yum -y install openldap compat-openldap openldap-clients openldap-servers openldap-servers-sql openldap-devel migrationtools vim

cd /etc/openldap/slapd.d

rm -rf

cp /usr/share/openldap-servers/slapd.ldif /root/ldap/

Set OpenLDAP admin password. # generate […]

Backup and Restore Files in Red Hat / CentOS 7

This procedure is to backup XFS-based file systems in Red Hat Enterprise Linux 7.x Backing up a file system (/etc)

1. To backup the /etc/ filessystem to a file called “/tmp/mybackup”, issue the following command:

# cd /tmp

# xfsdump -0f mybackup /dev/mapper/rhel-root -s etc

where:

-f: do the dump to the file “mybackup”

[…]

ANSIBLE Practice

ANSIBLE Practice Ansible-palybooks

root@controller:~$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/root/.ssh/id_rsa. Your public key has been saved in /home/root/.ssh/id_rsa.pub. The key fingerprint is: 33:b8:4d:8f:95:bc:ed:1a:12:f3:6c:09:9f:52:23:d0 root@controller The key’s randomart image is: […]

kubernetes centos7.3

Last login: Thu Mar 1 00:45:37 2018 from 192.168.1.248 [root@clusterserver1 ~]# uname -a Linux clusterserver1.rmohan.com 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux [root@clusterserver1 ~]#

Master : 192.168.1.20 Worker1 : 192.168.1.21 Worker2 : 192.168.1.23 worker3 : 192.168.1.24

hostnamectl set-hostname ‘clusterserver1.rmohan.com’ exec bash setenforce 0 sed -i –follow-symlinks ‘s/SELINUX=enforcing/SELINUX=disabled/g’ /etc/sysconfig/selinux

[root@clusterserver1 […]

How to Setup a WebDAV Server Using Apache on CentOS 7

How to Setup a WebDAV Server Using Apache on CentOS 7

CentOS Linux Guides Server Apps Web Servers

WebDAV stands for “Web-based Distributed Authoring and Versioning”. It’s an extension of the HTTP protocol that allows users to manage and share files stored on a WebDAV-enabled web server.

This tutorial will show you how to setup […]