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Please Help Me

Plase Help Me

Hi
i use bind 9.18.1 on Ubuntu 22.04.1.
But i have a problem.
Some clients have an error while answering their queries.

in queries.log ;

03-Jan-2023 15:40:57.342 query-errors: info: client...

Hello


We will show Bind9 on the Linux machine as the DNS Server for the DC and ADC we have installed.


I couldn't find a healthy example anywhere for the zone file it should be.


Do I...

Hi
I configured my own Vpn Server on Ubuntu 20.04 LTS.
OpenVpn Server version is 2.4.7
Easy-rsa version is 3.0.4


i created a user cert below

./easy-rsa gen-req client7
./easy-rsa sign-req...

please help me
1) i want to setup Web Application Firewall(WAF) on ubuntu Firewall from outside to inside web traffic
My aim,blocking bad traffic before it reaches the web server.i want to do it...

Hello
i use Ubuntu 16.04 LTS Firewall8iptables)+Bind9(Dns Server)+Squid on one machine in my company.200 computers and 7 Windows Server in my network
1) i want to setup Web Application...

Doug S.
Thank you.
i tried " ./script >output.txt"
The problem is solved.

Thank you very much for your help

Hi,

i want to write script about a file(trial.txt).

my trial.txt;

Hello
i use Ubuntu 16.04 LTS Firewall+Bind9(Dns Server)+Squid on one machine in my company.200 computers in my company.
My dns server serves both inside network and outside network from 53 port....

Hello
i installed have postfix, Dovecot and mysql setup my server on Ubuntu Server 16.04 two year ago.But apple client can not send to mail.

Postfix Log is ;

Jun 10 10:47:49 mail...

Hello Darkod

i read your answer carefully.Your answer is very useful for me.But i want to ask two questions.

1)
My mail server zone in bind server is ;



IN MX 10 xxx.abuse.com.tr.

SeijiSensei
Thank you for your help

jbamford thank you.

i added as you said.i restart bind service but i took an error.
tailf /var/log/syslog ;


This error is normal.Because i deleted "abuse.com.tr. IN SPF "v=spf1 a mx...

Thank you Rubi1200

Hello

i installed postfix server two years ago.But when i test my mail server in mxtoolbox ,i took an error.
"Dmarc record not found"
how is create dmarc record in postfix? i did not found in...

Hello
i setup postfix/mysql/apache server 2 year ago. Postfix server works successfully 2 years.i did mxtoolbox site test a few day ago.
i took an error " Spf record Deprecated ,no deprecated...

TheFu thank you.
i will search pi-hole project.
i created a lot of zone for blocking.For example i want to block facebook.com.
i created new zone file.


Thank you very much for your help

Darkod thank you.
I want to block only spesific url by used 443 port

Hello
i installed squid and iptable and bind dns server on ubuntu 16.04 lts firewall,i have a 200 client.
i am blocked port 80 very nice from squid.
But i can not block 443 port properly in squid...

what do you recommend.i did not write it like that in webmin

Volkswagner Thank you for your answer
i posted line 180 /etc/iptables/rules.v4


ı click New,Relate Button ? Conntrack is irrelevant?

Hello
i manage iptables firewall with Webmin.i managed 30 iptables firewall until today.
but ,first time i took an error from webmin.Moreover i added the same rule !
When i add establish,related...

The Cog and Dargod
i setup Firewall according to scenario 1

Thank you very much for your help

darkod and the cog thank you.
The cog,as you said ,when i add route to modem(return 25.0),the problem is solved.

Darkod and the cog,
i want to setup iptables firewall,Because it is very...