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Operating Systems Linux Not able to setup CentOS 7 as gateway [Using squid proxy] Post 303009791 by sunnysthakur on Wednesday 20th of December 2017 04:47:13 AM
Old 12-20-2017
FIXED

I disabled NetworkManager and firewalld and use legacy network and iptables to get it working on CentOS7. Firewalld and NetworkManager are kind of wrappers which causes this issue.Smilie
This User Gave Thanks to sunnysthakur For This Post:
 

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FIREWALL-CONFIG(1)						  firewall-config						FIREWALL-CONFIG(1)

NAME
firewall-config - firewalld GUI configuration tool SYNOPSIS
firewall-config [OPTIONS...] DESCRIPTION
firewall-config is a GUI configuration tool for firewalld. OPTIONS
firewall-config does not support any special options. The only options that can be used are the general options that Gtk uses for Gtk application initialization. For more information on these options, please have a look at the runtime documentation for Gtk. The following options are supported: -h, --help Prints a short help text and exists. SEE ALSO
firewall-applet(1), firewalld(1), firewall-cmd(1), firewall-config(1), firewalld.conf(5), firewalld.direct(5), firewalld.icmptype(5), firewalld.lockdown-whitelist(5), firewall-offline-cmd(1), firewalld.richlanguage(5), firewalld.service(5), firewalld.zone(5), firewalld.zones(5) NOTES
firewalld home page at fedorahosted.org: http://fedorahosted.org/firewalld/ More documentation with examples: http://fedoraproject.org/wiki/FirewallD AUTHORS
Thomas Woerner <twoerner@redhat.com> Developer Jiri Popelka <jpopelka@redhat.com> Developer firewalld 0.3.9 FIREWALL-CONFIG(1)
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