SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.
Questions tagged [sasl]
20 questions
6
votes
1 answer
SASL authentication "fails" on Freenode / Tor, on irssi and weechat
I am following various tutorials about using Freenode through Tor. I have tried irssi + cap_sasl.pl, and also weechat, which has builtin SASL support.
The connection fails in following way on both clients (irssi & weechat):
freenode | irc:…
Prince
- 63
4
votes
1 answer
Postfix: SMTP, use port 587 rather than 465
I have set up a mail server on AWS EC2 using the instructions from Flurdy: http://flurdy.com/docs/postfix/ it has mostly gone well.
My issue is that I would prefer to use SMTP port 587 with TLS rather than 465 with SSL. I believe this is a relevant…
Wairowe
- 41
3
votes
1 answer
use postfix with ssl certificate that has a password
i have gone through a couple of tutorials on how to set up postfix on ubuntu with support for my ssl certificate:
https://help.ubuntu.com/community/Postfix
http://www.projektfarm.com/en/support/howto/postfix_smtp_auth_tls.html
but neither of them…
mulllhausen
- 612
3
votes
1 answer
How can I prevent that an user sends mail like another user on Postfix?
I am running a Mail Server on CentOS 7. All programs and system are up to date. My Mail Transfer Agent is Postfix, and it uses Dovecot SASL to authenticate the users.
In Postfix's configuration, my trusted network is only localhost. So, every hosts…
cl4rk
- 33
2
votes
1 answer
Configuring SASL with kerberos
This is my first time configuring SASL, and I am lost.
I have a samba 4 as AD controller, and have installed kerberos.
kinit is already succesful, but SASL cannot authenticate anything
I have tried to set as kerberos, and error is…
prd
- 176
2
votes
2 answers
Postfix allows unauthenticated users to send emails
Hey I set up Postfix to use cyrus SASL implantation and I'm able to login and send emails, but I can still telnet on port 25 and send mails even if I'm not authenticated, which I whish to deny.
smtp_sasl part of my main.cf:
smtpd_sasl_path =…
Kimmax
- 364
2
votes
0 answers
separate irssi services passwords from main configuration file
I want to automatically connect to some IRC networks that don't all support authentication SSL client certificates (like OFTC) or SASL (Freenode). At the same time I want to add my irssi config to version control but do not want any passwords…
kouk
- 121
2
votes
2 answers
What is the correct format of a postfix sasl password database map file?
It is possible to request postfix to fetch sasl login information for its relay server from a database. I then have this relay server fetch the very same login information.
How do we format this configuration file to properly fetch?
We know these…
aphid
- 281
2
votes
1 answer
fail2ban not catching SMTP password brute force attack
Spammers are running brute force password guessing attacks on my server (postfix on Debian). They have already guessed two user's passwords and started sending spam using my server. Passwords changed and attacks mitigated (for now), but I want to…
Shachar Shemesh
- 245
- 3
- 13
1
vote
1 answer
Postfix with SASL and Dovecot 2 configuration
I'm trying to configure my server to receive and send mails. Sending mails is no problem, but there seems to be an issue receiving mails. I have this configuration working on my old server, but now I'm migrating to a new server, on which Dovecot 2…
Flock Dawson
- 279
1
vote
1 answer
How to configure sasl with Subversion?
I have a svnserve runnign and want to set it up with sasl. So I has the following in my svnserve.conf in the repository:
[sasl]
use-sasl = true
min-encryption = 256
max-encryption = 256
And I have a file in /usr/lib/sasl2/svn.conf with the…
Mnementh
- 976
1
vote
1 answer
Postfix + Cyrus not working
I have a problem. I have configured postfix for run with cyrus, and it's still not working.
/var/log/mail.log
Nov 29 10:44:24 mail postfix/submission/smtpd[32229]: connect from out.example.com[xxx.xxx.xxx.xxx]
Nov 29 10:44:55 mail…
rktech
- 11
1
vote
1 answer
Make postfix use sasl / auth plain for outbound mail to a relay server
My postfix does not send AUTH PLAIN to the outgoing relay server.
It must have worked a couple of days ago, but now I get "relay not permitted" bounce mails.
The mail system runs in an Alpine Linux VM using postfix, fetchmail and dovecot. Postfix…
Rainer Schwarze
- 113
0
votes
1 answer
How do I have more than one database for SASL authentication in Postfix?
I currently have Postfix set up to authenticate submission with SASL. The database connection info is stored in /etc/postfix/sasl/smtpd.conf
However, I cannot for the life of me figure out how to have TWO databases it should check for valid users. I…
0
votes
3 answers
Have sendmail authenticate users against dovecot (or passwd-style files)
I have set up a Debian 10 mail server with sendmail and dovecot+virtual users in preparation of a migration (the old server is also running sendmail + dovecot, but older versions and with "real" users).
On the dovecot side, everything is peachy. I…
moeffju
- 123