This package provides a way to figure out which processes communicate with which other processes. It provides more usable versions of ps, top and pstree.

ClusterSSH controls a number of xterm windows via a single graphical console window to allow commands to be interactively run on multiple servers over ssh connections.

Fail2Ban scans log files like /var/log/auth.log and bans IP addresses conducting too many failed login attempts. It does this by updating system firewall rules to reject new connections from those IP addresses, for a configurable amount of time. Fail2Ban comes out-of-the-box ready to read many standard log files, such as those for sshd and Apache, and is easily configured to read any log file of your choosing, for any error you wish.

Though Fail2Ban is able to reduce the rate of incorrect authentication attempts, it cannot eliminate the risk presented by weak authentication. Set up services to use only two factor, or public/private authentication mechanisms if you really want to protect services.

Autojump provides a faster way to navigate your file system, with a "cd command that learns". It works by maintaining a database of the directories you use the most from the command line and allows you to "jump" to frequently used directories by typing only a small pattern.

This package provides a simple, configurable system information tool.

doctl provides a unified command line interface to the DigitalOcean API.

Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes (even processes have finished during the monitoring interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks (including LVM) and network layers, and for every process (and thread) it shows e.g. the CPU utilization, memory growth, disk utilization, priority, username, state, and exit code.

SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using one of several firewall backends.

daemonize runs a command as a Unix daemon. It will close all open file descriptors, change working directory of the process to the root filesystem, reset its umask, run in the background, ignore I/O signals, handle SIGCHLD, etc. Most programs that are designed to be run as daemons do that work for themselves. However, you’ll occasionally run across one that does not. When you must run a daemon program that does not properly make itself into a true Unix daemon, you can use daemonize to force it to run as a true daemon.

This package provides a tiny system info utility.

Dstat is a versatile replacement for vmstat, iostat, netstat, and ifstat. Dstat overcomes some of their limitations and adds some extra features, more counters and flexibility. Dstat is handy for monitoring systems during performance tuning tests, benchmarks or troubleshooting.

Dstat allows you to view all of your system resources in real-time, you can, e.g., compare disk utilization in combination with interrupts from your IDE controller, or compare the network bandwidth numbers directly with the disk throughput (in the same interval).

This package provides a minimal seat management daemon whose task is to mediate access to shared devices, such as graphics and input, for applications that require it.

Jnettop is a traffic visualiser, which captures traffic going through the host it is running from and displays streams sorted by bandwidth they use.

This package contains a set of utilities for cloud computing environments:

• cloud-localds Create a disk for cloud-init to utilize nocloud

• cloud-publish-image Wrapper for cloud image publishing

• cloud-publish-tarball Wrapper for publishing cloud tarballs

• cloud-publish-ubuntu Import a Ubuntu cloud image

• ec2metadata Query and display EC2 metadata

• growpart Grow a partition to fill the device

• mount-image-callback Mount a file and run a command

• resize-part-image Resize a partition image to a new size

• ubuntu-cloudimg-query Get the latest Ubuntu AMI

• ubuntu-ec2-run Run a EC2 instance using Ubuntu

• vcs-run Obtain a repository, and run a command

• write-mime-multipart Handle multipart MIME messages

stress-ng stress-tests a computer system by exercising both physical subsystems as operating system kernel interfaces. It can stress the CPU, cache, disk, memory, socket and pipe I/O, scheduling, and much more, in various selectable ways. This can trip hardware issues such as thermal overruns as well as operating system bugs that occur only when a system is being thrashed hard.

You can also measure test throughput rates, which can be useful to observe performance changes across different operating system releases or types of hardware. However, stress-ng is not a benchmark. Use it with caution: some of the tests can make poorly designed hardware run dangerously hot or make the whole system lock up.

Compared to its inspiration, stress, stress-ng offers many additional options such as the number of bogo operations to run, execution metrics, verification of memory and computational operations, and considerably more stress mechanisms.

Inxi is a system information script that can display various things about your hardware and software to users in an IRC chatroom or support forum. It runs with the /exec command in most IRC clients.

UwUFetch is a system information tool in the lineage of NeoFetch, PFetch, HyFetch, and the like. It prints ASCII art of your system's logo as well as a summary of system information. UwUFetch's unique contribution is the uwu-ification of various words used in the description. For example, Guix becomes gUwUix.

This package provides a command-line UEFI image editor, including cbfs, create-ffs, fmap, fspinfo, glzma, guid2english, microcode and utk CLI utilities.

wpa_supplicant is a WPA Supplicant with support for WPA and WPA2 (IEEE 802.11i / RSN). Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11 authentication/association of the WLAN driver.

This package provides the wpa_supplicant daemon and the wpa_cli command.

UDPcast is a file transfer tool that can send data simultaneously to many destinations on a LAN. This can for instance be used to install entire classrooms of PC's at once. The advantage of UDPcast over using other methods (nfs, ftp, whatever) is that UDPcast uses UDP's multicast abilities: it won't take longer to install 15 machines than it would to install just 2.

pam-hooks is a tiny PAM module enabling the execution of hook scripts when a PAM session is opened or closed. The typical use case is the need of doing some per-user set-up when a user logs via a PAM-aware login mechanism and/or the need of doing some per-user clean-up when the user logs out.

A daemon that monitors directories for events, such as creating, deleting or modifying files. It can monitor different sets of directories for different events. When an event is detected, direvent calls a specified external program with information about the event, such as the location within the file system where it occurred. Thus, "direvent" provides an easy way to react immediately if given files undergo changes, for example, to track changes in important system configuration files.

Detox is a program that renames files to make them easier to work with under Unix and related operating systems. Spaces and various other unsafe characters (such as "$") get replaced with "_". ISO 8859-1 (Latin-1) characters can be replaced as well, as can UTF-8 characters.

This package provides a command line tool that can give numerous reports on memory usage on GNU/Linux systems.