System Engineer:
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Daily Quotes
- It does not matter how slowly you go as long as you do not stop.
- Never form a friendship with a man who is not better than you.
- When anger rises, think of the consequences.
- When it is obvious that goals cannot be reached, don’t adjust the goals, but adjust the action steps.
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It’s a step-by-step procedure
(1) One of the best ways to determine whether your idea will succeed in your community is to talk to people you know. If it’s a business idea, talk to your families and friends. (2)It isn’t easy to begin a business, but not as complicated or scary as many people think. It’s a step-by-step procedure.
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How to Increase the size of a Linux LVM by expanding the virtual machine disk
This post will cover how to increase the disk space for a VMware virtual machine running Linux that is using logical volume manager (LVM). Firstly we will be increasing the size of the actual disk on the VMware virtual machine, so at the hardware level – this is the VM’s .vmdk file. Once this is complete we will get into the virtual machine and make the necessary changes through the operating system in order to take advantage of the additional space that has been provided by the hard drive being extended. This will involve creating a new partition with the new space, expanding the volume group and logical group, then finally resizing the file system. (more…)
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Sample Standard fierwall with Iptables on Centos/RHD 7
Iptables configuration
# Generated by iptables-save v1.4.21 on Tue Apr 11 16:29:44 2017
*nat
:PREROUTING ACCEPT [4746:197868]
:INPUT ACCEPT [4231:166644]
:OUTPUT ACCEPT [927:58735]
:POSTROUTING ACCEPT [927:58735]
:OUTPUT_direct – [0:0]
:POSTROUTING_ZONES – [0:0]
:POSTROUTING_ZONES_SOURCE – [0:0]
:POSTROUTING_direct – [0:0]
:POST_public – [0:0] (more…)
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Mail Server, Postfix, Dovecot, webmail: Roundcube, Squiremail
Mail Server, Postfix, Dovecot, webmail: Roundcube, Squiremail
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Open vpn server_linux
I am happy to share what I have, “SHARE>LEARN>INVOLE”
Thank you for your visiting my documents.
Command for Configuration
- Install “ openvpn”
- Copy “easy-rsa” from “/usr/share/openvpn/easy-rsa” to “/etc/openvpn”
- Copy “server.conf” from “/usr/share/doc/packages/openvpn/sample-config-files/server.conf” to “/etc/openvpn/easy-rsa”
- Go to /etc/openvpn
- Generate the server key
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How to Install MariaDB on CentOS 7
MariaDB is a fork of the popular cross-platform MySQL database management system and is considered a full drop-in replacement for MySQL. MariaDB was created by one of MySQL’s originial developers in 2009 after MySQL was acquired by Oracle during the Sun Microsystems merger. Today MariaDB is maintained and developed by the MariaDB Foundation and community contributors with the intention of it remaining GNU GPL software.
A day in the academic life... 