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Posts Tagged ‘postfix’

additional postfix filter for fail2ban

June 18, 2017 |  by  |  Computer Stuff, Doku  |  No Comments

My fail2ban-setup was missing a filter for a certain type of attack which has a different “_daemon”-string

 

Barracuda offers a new — and free — alternative to Spamhaus

March 31, 2017 |  by  |  Computer Stuff, Doku  |  No Comments

Now a new, free alternative to Spamhaus has arrived: the Barracuda Reputation Block List (BRBL), provided by well-known, open source-based Barracuda Networks. And Barracuda CEO Dean Drako says the company has no plans to charge for the service in the future. He says that BRBL (pronounced “barbell”) “does cost us a little bit of money to run, but we think that the goodwill, the reputation and the understanding that Barracuda is providing the service will do us well in the long run.”

Source: Barracuda offers a new — and free — alternative to Spamhaus

Renew certificates for Postfix and Courier on ISPConfig

September 15, 2014 |  by  |  Computer Stuff, Doku  |  No Comments


Generating RSA private key, 2048 bit long modulus
e is 65537 (0x10001)
Enter pass phrase for mx1.wiretrip.de.key:
Verifying - Enter pass phrase for mx1.wiretrip.de.key:


Enter pass phrase for mx1.wiretrip.de.key:
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:DE
State or Province Name (full name) [Some-State]:BY
Locality Name (eg, city) []:NUREMBERG
Organization Name (eg, company) [Internet Widgits Pty Ltd]:WIRETRIP WEB ARCHITECTURE
Organizational Unit Name (eg, section) []:IT
Common Name (e.g. server FQDN or YOUR name) []:mx1.wiretrip.de
Email Address []:----@wiretrip.de

Please enter the following ‘extra’ attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:WIRETRIP WEB ARCHITECTURE


Signature ok
subject=/C=DE/ST=BY/L=NUREMBERG/O=WIRETRIP WEB ARCHITECTURE/OU=IT/CN=mx1.wiretrip.de/emailAddress=----@wiretrip.de
Getting Private key
Enter pass phrase for mx1.wiretrip.de.key


Enter pass phrase for mx1.wiretrip.de.key:
writing RSA key


Generating a 2048 bit RSA private key
writing new private key to 'cakey.pem'
Enter PEM pass phrase:
Verifying - Enter PEM pass phrase:
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:DE
State or Province Name (full name) [Some-State]:BY
Locality Name (eg, city) []:NUREMBERG
Organization Name (eg, company) [Internet Widgits Pty Ltd]:WIRETRIP WEB ARCHITECTURE
Organizational Unit Name (eg, section) []:IT
Common Name (e.g. server FQDN or YOUR name) []:mx1.wiretrip.de
Email Address []:----@wiretrip.de


[ ok ] Stopping Postfix Mail Transport Agent: postfix.
[ ok ] Starting Postfix Mail Transport Agent: postfix.


Generating a 1024 bit RSA private key
writing new private key to '/usr/lib/courier/imapd.pem'
-----
1024 semi-random bytes loaded
Generating DH parameters, 512 bit long safe prime, generator 2
This is going to take a long time
subject= /C=DE/ST=BY/L=NUERNBERG/O=WIRETRIP WEB ARCHITECTURE/OU=IT/CN=mx1.wiretrip.de/emailAddress=----@wiretrip.de
notBefore=Sep 15 14:05:59 2014 GMT
notAfter=Sep 15 14:05:59 2015 GMT


Generating a 1024 bit RSA private key
writing new private key to '/usr/lib/courier/pop3d.pem'
-----
1024 semi-random bytes loaded
Generating DH parameters, 512 bit long safe prime, generator 2
This is going to take a long time
subject= /C=DE/ST=BY/L=NUERNBERG/O=WIRETRIP WEB ARCHITECTURE/OU=IT/CN=mx1.wiretrip.de/emailAddress=----@wiretrip.de
notBefore=Sep 15 14:06:13 2014 GMT
notAfter=Sep 15 14:06:13 2015 GMT