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Questions tagged [sasl]

Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols.

259 questions
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How do I allow anonymous SVN access on svnserve with SASL?

I've setup svnserve with SASL authentication and encryption for encrypting the traffic. Anonymous access should be allowed. My configuration file conf/svnserve.conf (with comments stripped) looks like this: [general] anon-access = read auth-access =…
Lekensteyn
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Problem with testsaslauthd and kerberos5 ("saslauthd internal error")

The error message “saslauthd internal error” seems like a catch-all for saslauthd, so I’m not sure if it’s a red herring, but here’s the brief description of my problem: This Kerberos command works fine: $ echo getprivs | kadmin -p username -w…
danorton
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Postfix SASL error: warning: unknown[xxx.xxx.xxx.xxx]: SASL LOGIN authentication failed: authentication failure

My use case is to use my own mail server to send emails from CCTV NVRs to overcome the daily limits imposed by GMail. The NVR has an option to setup authentication. The config worked for whitelisted IP but I don't have a static IP. So, I set up the…
justanotherdev
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Postfix sasl_password file and MX resolution

Thanks to @AlexD idea, we'll implement the following transport table in order to simulate a IP failover using the DNS MX resolution (postfix 3.3) Relay for 2 domains, exemple[12].com exemple1.com relay:mx.myhost.com:587 exemple2.com …
Déjà vu
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Kerberos principal names for distributed services

Two typical forms for Kerberos (v5) principal names seem to be: username[/instance]@REALM service/fully-qualified-domain-name@REALM I've also seen something like this for services which could exist on multiple…
John Zwinck
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Can't telnet to Postfix SMTP server after adding smtpd_sasl_auth_enable option

I have the Postfix SMTP server installed on my CentOS 7 machine on port 25. To test that it's working, I connect to it using telnet, like this: # telnet localhost 25 and the result is: Trying ::1... Connected to localhost. Escape character is…
GetFree
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SASL not blocking non authenticated user sending email to itself

My email server is working fine except that still allows anyone to send email from a my@email.pt to my@email.pt. I eanbled in /etc/postfix/main.cf smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable =…
Kaf
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Using SASL from CentOS 7 Host to Authenticate to Active Directory

Trying to configure SASL on a CentOS 7 box to talk to an Active Directory installation. I've tried a couple different configurations that generate different errors. The latest: No worthy mechs found ldap_sasl_interactive_bind() failed -6 (Unknown…
Adam
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Mail Server allow sending spam to hosted mailboxes

I got an issue on both of my servers (Postfix + Dovecot and one on Zimbra) My issue is some robots send spam without login to our hosted mailboxes using the same FROM/RCPT. It seems Google got the same issue too…
Maxence
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What is wrong with my SASL?

So the story goes: I have a score of CentOS 6.9 virtual machines, migrated to Microsoft's Azure cloud by VHD upload. Once deployed I found out that Azure doesn't allow to send out email directly from the VM – I am supposed to use an external relay.…
djn
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fail2ban cannot set iptables rules

I have only a thin knowledge of both iptables and fail2ban, but my mail server has a lot of incoming connections that I want to get rid of. I have this config block in /etc/fail2ban/jail.conf [postfix-sasl] enabled = true port =…
kinezana
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Zentyal 5: SASL credentials could not be processed

I want to ask you for help and point me how i can fix my mistake without reinstalling the whole system. So... There was Zentyal 4, and after upgrading to Zentyal 5 I got some errors. One of them is: 2017/07/12 17:30:12 INFO> Service.pm:958…
Psychozoic
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Need help creating LDAP Server that syncs users from 3 separate AD Controllers

Hopefully I can get some help here as I have really been beating my head against the ol' keyboard over here. So, here's the situation. We recently migrated end users from an onsite Exchange server to Exchange Online, and the client chose to go…
thedelorean
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Postfix sasl relay host

I'm trying to set up SASL to a relayhost to send external email. I've read a hell of a lot and done everything I'm supposed to have done. However our provider won't accept me relaying emails with (we are not on their network, but they say this is ok…
Mr Shoubs
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Postfix + Dovecot login fail only in Imap

sorry in advance because Im sure the problem is stupid, but after two days trying different configurations from Google and Serverfault it still not working. Im Newbie in Postfix/Dovecot After upgrading Debian, I configured (for first time) Postfix…
Javier García Serrano
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