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Classic Linux: logging in

[ Classic Linux. ]

Any time you supply a login name and a password when queried, we will call this logging in. If you are permitted to proceed normally, we will call that a successful login. Otherwise it's a failed login.

One problem that occurs is that there are many different types of logins, and this causes confusion when a login fails. Below we will list various types of logins. Whenever you encounter a failed login, please consult this list and make sure you are attempting the right type of login. And if the login keeps failing, please report that to us, and mention specifically which type of login failed.

IP address blocks. Some of the logins described below will block your IP address after too many failed logins. The intent behind this is to protect you by blocking unfriendly persons on the Internet who are trying to break into your account. Unfortunately, sometimes this may actually block you, the user, from accessing your own account. In every case, the IP address block automatically goes away after some time. Just try again a few minutes later, and the block should be gone. If a block like this remains in place for longer than 15 minutes, please let us know.

Ssh login

All Classic Linux ssh logins should always connect to (also known as After a successful ssh login, you will be at the Linux shell, where you can use the command line. One common reason to do this is to use the Alpine program to access email.

If your ssh connection attempt times out, please see: Classic Linux SSH restrictions (and hints).

When reporting this type of login failure, always mention ssh, and tell us to which host you are connecting, which will almost always be or Also mention the error messages that you saw.

IMAP or POP login

An IMAP or POP login is done by your own mail client, such as Thunderbird, running on your home or office machine. You configure your mail client by giving it host names and port numbers. That mail client then tries to log into a specified port on a specified host to access your email. If it fails to log in, then we will call that an IMAP or POP login failure. Please double-check to make sure you are using the correct parameters as described on this page: Classic Linux ports and protocols.

When reporting an IMAP or POP login failure, please mention which program you are using, what the error message says, and which of the parameters mentioned on Classic Linux ports and protocols you were attempting to use.

Roundcube webmail login

A Roundcube webmail login failure occurs when you access either the normal Roundcube webmail at or the legacy Roundcube webmail at and that login fails. When reporting a Roundcube webmail login failure please mention which of the two Roundcubes you were trying to use, and what error message you saw.

Virtualmin login

Your Virtualmin control panel is at After logging into this control panel, you can manage your account. You can add or remove a domain, add or remove mailboxes and mail aliases, and adjust website settings, and many other things.

If this login fails, we will call this a Virtualmin login failure.

When reporting a Virtualmin login failure, please say Virtualmin login failure, and mention the URL that you were trying to access (which should be, and what error message you saw.

Billing system login

Our billing system is described on this page: Billing System (revised for 2020). After you log into the billing system, you can look at your account, see which services you are getting, and look at past and current invoices.

When reporting a billing system login failure, please mention billing system login failure, and mention the URL that you were trying to access, and what error message you saw.


Below is a small selection of useful pages. Please see the sidebar menu for many more.

Some pages reside in a separate Hints menu. It you find yourself there, just follow the Top link to get back to the main menu.

hints/classic_linux_logging_in.txt · Last modified: 2021/02/10 09:07 by admin