July 2018
M T W T F S S
« Jun    
 1
2345678
9101112131415
16171819202122
23242526272829
3031  

Categories

WordPress Quotes

Life shrinks or expands in proportion to one's courage.
Anais Nin

Recent Comments

July 2018
M T W T F S S
« Jun    
 1
2345678
9101112131415
16171819202122
23242526272829
3031  

Short Cuts

2012 SERVER (64)
2016 windows (9)
AIX (13)
Amazon (30)
Ansibile (18)
Apache (125)
Asterisk (2)
cassandra (2)
Centos (208)
Centos RHEL 7 (254)
chef (3)
cloud (2)
cluster (3)
Coherence (1)
DB2 (5)
DISK (25)
DNS (9)
Docker (24)
Eassy (11)
EXCHANGE (3)
Fedora (6)
ftp (5)
GIT (3)
GOD (2)
Grub (1)
Hacking (10)
Hadoop (6)
horoscope (23)
Hyper-V (10)
IIS (15)
IPTABLES (15)
JAVA (6)
JBOSS (32)
jenkins (1)
Kubernetes (2)
Ldap (5)
Linux (189)
Linux Commands (167)
Load balancer (5)
mariadb (14)
Mongodb (4)
MQ Server (21)
MYSQL (82)
Nagios (5)
NaturalOil (13)
Nginx (29)
Ngix (1)
openldap (1)
Openstack (6)
Oracle (34)
Perl (3)
Postfix (19)
Postgresql (1)
PowerShell (2)
Python (3)
qmail (36)
Redis (12)
RHCE (28)
SCALEIO (1)
Security on Centos (29)
SFTP (1)
Shell (64)
Solaris (58)
Sql Server 2012 (4)
squid (3)
SSH (10)
SSL (14)
Storage (1)
swap (3)
TIPS on Linux (28)
tomcat (59)
Uncategorized (29)
Veritas (2)
vfabric (1)
VMware (28)
Weblogic (38)
Websphere (71)
Windows (19)
Windows Software (2)
wordpress (1)
ZIMBRA (17)

WP Cumulus Flash tag cloud by Roy Tanck requires Flash Player 9 or better.

Who's Online

23 visitors online now
4 guests, 19 bots, 0 members

Hit Counter provided by dental implants orange county

How to Improve rsync Performance

I need to transfer 10TB of data from one machine to another machine. Those 10TB of files are living in a large RAID which span across 7 different disks. The target machine has another large RAID which span across 12 different disks. It is not easy to copying those files locally. Therefore, I decide to […]

vsftpd

This howto describes how to configure vsftpd to enable SSL using so called intermediate/ chaining certificates.

Edit vsftpd.conf so that SSL is enabled:

 

ssl_enable=YES

rsa_cert_file=/usr/share/ssl/certs/vsftpd.pem

force_local_data_ssl=No

force_local_logins_ssl=NO

It is very important to construct the certificate file /usr/share/ssl/certs/vsftpd.pem with the correct certificate order. The fist Your certificate file has to be a .pem file. If […]

CentOS 6.9 Docker

CentOS 6.9 Docker

public key

rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

ELRepo Centos6?

rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm

Cenos7?

rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm (external link)

kernel

yum –enablerepo=elrepo-kernel install -y kernel-lt

yum –enablerepo=elrepo-kernel install -y kernel-ml

vi /etc/grub.conf

default

# grub.conf generated by anaconda # default=0 timeout=5 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title CentOS (3.10.28-1.el6.elrepo.x86_64) root (hd0,0) kernel /boot/vmlinuz-3.10.28-1.el6.elrepo.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us […]

“This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.”

two solutions

in the plugin configuration file disable plugin

vim /etc/yum/pluginconf.d/subscription-manager.conf

enabled=0 or register to the satellite

ps command #1 – Basic

A linux command to monitor the system process consuming resources on the server. If you are working on a linux system it is good to have at least basic understanding of this command.

ps program or command when run take a snapshot of running processes at that time and display on the terminal which can […]

memory usage in Linux per process

Not because I really want to; but because I just don’t have the money to spend on a 2+ GB RAM VPS and I would like to run Jira.

In order to do this I keep a close eye on the processes running and how much memory each takes.

For this I found […]

Top Show Running Processes

he Linux top command is used to show all the running processes within your Linux environment. This guide shows you how to use the top command by explaining the different switches available and the information that is displayed:

How To Run The Top Command

In its basic form all you need to do to show […]

Install Microsoft SQL Server On CentOS Linux

In December 2016 Microsoft made their SQL Server database available in Linux. Here we’ll cover how to install and perform basic setup of MSSQL in the RHEL based Linux distribution CentOS.

Install MSSQL In CentOS 7

First we’ll set up the repository file, Microsoft provide a copy of this for RHEL here: https://packages.microsoft.com/config/rhel/7/mssql-server.repo

We’ll use […]

Dovecot can’t start with error pop3-login & imap-login not supported protocol family

vim /etc/dovecot/dovecot.conf — listen = *, :: ? listen = * — service dovecot restart

If you see this error after Dovecot 2.0.x was installed: Error: service(pop3-login): listen(::, 110) failed: Address family not supported by protocol Error: socket() failed: Address family not supported by protocol Error: service(pop3-login): listen(::, 995) failed: Address family not supported by […]

Disable or enable the IPv6 protocol

Disable or enable the IPv6 protocol

Disabling IPv6 support in Red Hat Enterprise Linux 7

Disable ipv6 built-in kernel module.

Edit /etc/default/grub and append ipv6.disable=1 to GRUB_CMDLINE_LINUX like the following sample: Raw

GRUB_CMDLINE_LINUX=”rd.lvm.lv=rhel/swap crashkernel=auto rd.lvm.lv=rhel/root ipv6.disable=1″

Run the grub2-mkconfig command to regenerate the grub.cfg file: Raw

# grub2-mkconfig -o […]

Page 1 of 2312345...1020...Last »