Answer by The Unknown Cynic for best way to clear all iptables rules
Newbie Necro-post:Lately, I'm finding that nf/iptables reports it's busy so whatever --delete,--flush, or -X argument that was issued with the iptables command simply has no effect. Thereby, I...
View ArticleAnswer by nvd for best way to clear all iptables rules
sudo iptables -t nat -Fsudo iptables -t mangle -Fsudo iptables -t filter -Fsudo iptables -t raw -Fsudo iptables -t nat -Xsudo iptables -t mangle -Xsudo iptables -t filter -Xsudo iptables -t raw -Xecho...
View ArticleAnswer by Basj for best way to clear all iptables rules
Here is how I remove all DROP rules:iptables -S |grep DROP| sed 's/-A/-D/'>rules # -A becomes -D: deletenano rules # check that everything is correctcat rules | while read line; do iptables $line;...
View ArticleAnswer by mevdschee for best way to clear all iptables rules
This worked for me (on Ubuntu 18.04):sudo bash -c "ufw -f reset && iptables -F && iptables -X && ufw allow 22 && ufw -f enable"It resets (and disables) ufw and then...
View ArticleAnswer by x-yuri for best way to clear all iptables rules
You can just unload iptables' modules from the kernel:modprobe -r iptable_raw iptable_mangle iptable_security iptable_nat iptable_filterUPD Unfortunately, too good to be true. As long as there's a rule...
View ArticleAnswer by Zibri for best way to clear all iptables rules
Backups configuration to iptables_backup.conf and clean all rules.iptables-save | tee iptables_backup.conf | grep -v '\-A' | iptables-restoreTo restore previous configuration:iptables-restore <...
View ArticleAnswer by Boschko for best way to clear all iptables rules
I've had to block all connections recently what I ended up doing was iptables-policy INPUT DROPiptables-policy OUTPUT DROPiptables-policy FORWARD DROPas for saving I'd recommend the...
View ArticleAnswer by Mugoma J. Okomba for best way to clear all iptables rules
One can do this in 1 or 2 commands: $ sudo iptables-save > iptables.bak $ sudo iptables -FResult:$ sudo iptables -nvLChain INPUT (policy ACCEPT 3138 packets, 5567K bytes)pkts bytes target prot opt...
View ArticleAnswer by Sam Halicke for best way to clear all iptables rules
To answer your question succinctly, no: there would not be any "leftover" rules after flushing every table. In the interest of being thorough however, you may want to set the policy for the built-in...
View ArticleAnswer by Realn0whereman for best way to clear all iptables rules
Whenever I need the firewall disabled is something like this:iptables-save > iptables.bakservice iptables stop (i'm on fedora)
View ArticleAnswer by Jerub for best way to clear all iptables rules
This will correctly totally reset your iptables system to a very basic state:iptables-save | awk '/^[*]/ { print $1 } /^:[A-Z]+ [^-]/ { print $1 " ACCEPT" ; } /COMMIT/ { print $0; }' |...
View Articlebest way to clear all iptables rules
I currently have this snippet:# flush all chainsiptables -Fiptables -t nat -Fiptables -t mangle -F# delete all chainsiptables -XIs there a possibility that some impervious rule will stay alive after...
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