How to fix my firewall iptables in centos?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











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My task from uni is make me to install centoc and now im having problem with firewall iptables



here it says :
enter image description here



and here is the iptables
enter image description here



what should i do ?




iptables




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  • What are you trying to achieve? When does the error in the first image appear?
    – SabreWolfy
    Feb 27 at 5:37










  • Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
    – garethTheRed
    Feb 27 at 7:28














up vote
0
down vote

favorite












My task from uni is make me to install centoc and now im having problem with firewall iptables



here it says :
enter image description here



and here is the iptables
enter image description here



what should i do ?




iptables




share|improve this question






















  • What are you trying to achieve? When does the error in the first image appear?
    – SabreWolfy
    Feb 27 at 5:37










  • Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
    – garethTheRed
    Feb 27 at 7:28












up vote
0
down vote

favorite









up vote
0
down vote

favorite











My task from uni is make me to install centoc and now im having problem with firewall iptables



here it says :
enter image description here



and here is the iptables
enter image description here



what should i do ?




iptables




share|improve this question














My task from uni is make me to install centoc and now im having problem with firewall iptables



here it says :
enter image description here



and here is the iptables
enter image description here



what should i do ?





iptables





share|improve this question













share|improve this question




share|improve this question








edited Aug 21 at 0:38









Rui F Ribeiro

34.9k1269113




34.9k1269113










asked Feb 27 at 4:39









Dinda Aulia

1




1











  • What are you trying to achieve? When does the error in the first image appear?
    – SabreWolfy
    Feb 27 at 5:37










  • Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
    – garethTheRed
    Feb 27 at 7:28
















  • What are you trying to achieve? When does the error in the first image appear?
    – SabreWolfy
    Feb 27 at 5:37










  • Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
    – garethTheRed
    Feb 27 at 7:28















What are you trying to achieve? When does the error in the first image appear?
– SabreWolfy
Feb 27 at 5:37




What are you trying to achieve? When does the error in the first image appear?
– SabreWolfy
Feb 27 at 5:37












Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
– garethTheRed
Feb 27 at 7:28




Please don't use screenshots when you can copy/paste text. Search engines can't access screenshots.
– garethTheRed
Feb 27 at 7:28










1 Answer
1






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1
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You used a capital -P on the 11th line (error message on the first screenshot):



-A INPUT -m state --state NEW -m tcp -P tcp --dport 50000 -j ACCEPT
 ^^


Replace the -P with -p and it should work.






share|improve this answer




















  • oh my god, thankyou so much. now i finally know the reasons.
    – Dinda Aulia
    Feb 27 at 7:26










  • BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
    – ErikF
    Mar 1 at 9:02










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1 Answer
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1 Answer
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active

oldest

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active

oldest

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active

oldest

votes








up vote
1
down vote













You used a capital -P on the 11th line (error message on the first screenshot):



-A INPUT -m state --state NEW -m tcp -P tcp --dport 50000 -j ACCEPT
 ^^


Replace the -P with -p and it should work.






share|improve this answer




















  • oh my god, thankyou so much. now i finally know the reasons.
    – Dinda Aulia
    Feb 27 at 7:26










  • BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
    – ErikF
    Mar 1 at 9:02














up vote
1
down vote













You used a capital -P on the 11th line (error message on the first screenshot):



-A INPUT -m state --state NEW -m tcp -P tcp --dport 50000 -j ACCEPT
 ^^


Replace the -P with -p and it should work.






share|improve this answer




















  • oh my god, thankyou so much. now i finally know the reasons.
    – Dinda Aulia
    Feb 27 at 7:26










  • BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
    – ErikF
    Mar 1 at 9:02












up vote
1
down vote










up vote
1
down vote









You used a capital -P on the 11th line (error message on the first screenshot):



-A INPUT -m state --state NEW -m tcp -P tcp --dport 50000 -j ACCEPT
 ^^


Replace the -P with -p and it should work.






share|improve this answer












You used a capital -P on the 11th line (error message on the first screenshot):



-A INPUT -m state --state NEW -m tcp -P tcp --dport 50000 -j ACCEPT
 ^^


Replace the -P with -p and it should work.







share|improve this answer












share|improve this answer



share|improve this answer










answered Feb 27 at 5:06









ErikF

2,7111413




2,7111413











  • oh my god, thankyou so much. now i finally know the reasons.
    – Dinda Aulia
    Feb 27 at 7:26










  • BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
    – ErikF
    Mar 1 at 9:02
















  • oh my god, thankyou so much. now i finally know the reasons.
    – Dinda Aulia
    Feb 27 at 7:26










  • BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
    – ErikF
    Mar 1 at 9:02















oh my god, thankyou so much. now i finally know the reasons.
– Dinda Aulia
Feb 27 at 7:26




oh my god, thankyou so much. now i finally know the reasons.
– Dinda Aulia
Feb 27 at 7:26












BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
– ErikF
Mar 1 at 9:02




BTW, you can replace lines 11-13 with a single line by replacing each --dport with a combined --dport 50000:50002.
– ErikF
Mar 1 at 9:02












 

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