GNOME Keyring is a collection of components in GNOME that store secrets, passwords, keys, certificates and make them available to applications. It is integrated with the user's login, so that their secret storage can be unlocked when the user logins into their session.
ClamSMTP is an SMTP filter that allows you to check for viruses using the ClamAV anti-virus software. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and scanned before forwarding.
Cockpit is perfect for new sysadmins, allowing them to easily perform simple tasks such as storage administration, inspecting journal and starting and stopping services.
Jumping between the terminal and the web tool is no problem. A service started via Cockpit can be stopped via the terminal.
... [More] Likewise, if an error occurs in the terminal, it can be seen in the Cockpit journal interface.
You can monitor and administer several servers at the same time. Just add them with a single click and your machines will look after its buddies. [Less]
bsnmp-ping is a module for bsnmpd which allows you to measure latency and reachability. It sends out ICMP packets to the configured hosts. A history of received packets is maintained, and you can query via SNMP how many dropped packets, maximum/minumum latency and other stats for that history period.
bsnmp-regex is a module for bsnmpd which allows creation of counters from log files, program output or other text data. The counters use regular expressions to count the number of matches, or parse out specific text/numbers. The resulting data can then be queried or graphed with the usual SNMP tools.
HTTPAuth is a daemon and framework for authenticating HTTP requests. It supports Basic and Digest authentication against various databases such as LDAP, PostgreSQL or MYSQL. It also supports NTLM authentication against a Windows Server.
Authentication takes place by a daemon called httpauthd.
... [More] This allows an extra layer of security as the web host doesn't need access to passwords or secrets. HTTPAuth isn't for everyone but can be a valuable tool in building more complex authentication for websites. [Less]
ProxSMTP is a flexible tool that allows you to reject, change or log email based on arbitrary critera. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and filtered before forwarding.