System Operations - Lab 2: Configuring a Virtual Private Cloud with Amazon VPC - Linux - 2.5
================================================================================================================== Using this command reference. ================================================================================================================== 1. Locate the section you need. Each section in this file matches a section in the lab instructions. 2. Replace items in angle brackets - < > - with appropriate values. For example, in this command you would replace the value - <JobFlowID> - (including the brackets) with the parameter indicated in the lab instructions: elastic-mapreduce --list <JobFlowID>. You can also use find and replace to change bracketed parameters in bulk. 3. Do NOT enable the Word Wrap feature in Windows Notepad or the text editor you use to view this file. ++++2. Provision the NAT Instance++++ ==================================================================================================================
2.2 Provision the NAT Server Instance
================================================================================================================== 2.2.6 Paste the user data script into the User data field #!/bin/sh
echo 1 > /proc/sys/net/ipv4/ip_forward
echo 0 > /proc/sys/net/ipv4/conf/eth0/send_redirects
/sbin/iptables -t nat -A POSTROUTING -o eth0 -s 0.0.0.0/0 -j MASQUERADE
/sbin/iptables-save > /etc/sysconfig/iptables
mkdir -p /etc/sysctl.d/
cat <<EOF > /etc/sysctl.d/nat.conf
net.ipv4.ip_forward = 1
net.ipv4.conf.eth0.send_redirects = 0
EOF ++++3. Deploy a Bastion Server++++ ==================================================================================================================
3.2 Create the Bastion Server
================================================================================================================== 3.2.5 Paste the following script into the User data field #!/bin/sh
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