CentOS 7 Igel Cloud Gateway

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Purpose

To install the Igel Cloud Gateway on CentOS 7 in AWS. Reason for CentOS is for an instance pre-configured with SELinux. Officially Igel supports RHEL 7, but there are some changes I needed to make to get things to work with CentOS.

Prep CentOS Image

  • If not using IPv6, disable it.[1] (I do not condone this, but my environment has third party support that is scared of IPv6)
  • Append the following to /etc/sysctl.conf [2]
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
  • Reload the config to apply
[centos@ip ~]$ sudo sysctl -p
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
  • Add the following to the yum config /etc/yum.conf [3]
ip_resolve=4

[4]

  1. ↑ https://www.thegeekdiary.com/centos-rhel-7-how-to-disable-ipv6/
  2. ↑ https://www.thegeekdiary.com/centos-rhel-7-how-to-disable-ipv6/
  3. ↑ http://blogoless.blogspot.com/2014/12/centos-7-ipv6-and-yum.html
  4. ↑ https://kb.igel.com/igelicg-2.01/preparing-the-linux-machine-19181657.html
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