This Docker device contains server-side software for secondary management of network devices:
– www (nginx)
– FTP (vsftpd)
– TFTP (TFTPD)
– Syslog (rsyslog)
DHCP (ISC-DHCP)
– SNMP server (snmpd + snmptrapd)

Get https://gns3.com/marketplace/appliance/networkers-toolkit

Many thanks to Andras Dosztal @adosztal for this great device!

vsftpd (or Very Secure FTP Daemon)[1] is an FTP server for Unix-like systems, including Linux. It is licensed under the GNU General Public License. It supports IPv6 and SSL.

vsftpd supports explicit (since 2.0.0) and implicit (since 2.1.0) FTPS.

vsftpd is the default FTP server in the Linux distributions Ubuntu, CentOS, Fedora, NimbleX, Slackware and RHEL.

Nginx (/ˌɛndʒɪnˈɛks/ EN-jin-EKS) (stylized as NGINX, NGiИX or nginx) is a web server that can also be used as a reverse proxy, load balancer, and HTTP cache. The software was developed by Igor Sysoev and first released publicly in 2004. A company of the same name was founded in 2011 to support it.

Nginx is free and open source software released under the terms of a BSD-like license. A large portion of web servers use NGINX, often as a load balancer.

tftpd: TCP/IP command. IPv4 Trivial File Transfer Protocol server. in.tftpd is normally started by inetd and operates on the port specified in the tftp Internet service description in /etc/services. Only publicly readable files can be accessed. By default, only files that already exist and are publicly writable can be written to. If directories are also specified, access is restricted to files in those directories. The version of tftp described here is tftp-hpa.

RSYSLOG is the lightning-fast system for log processing.

It offers high performance, great security features, and a modular design. Although it started as regular syslogd, rsyslog has evolved into a kind of Swiss Army knife of logging that can accept input from a variety of sources, transform it, and output the results to various destinations.

All IP devices require addresses, and ISC DHCP is the classic way to provide them. ISC DHCP is open source software that implements the Dynamic Host Configuration Protocol for connecting to an IP network. It provides a complete solution for implementing DHCP servers, relay agents, and clients for small local networks to large enterprises. The ISC DHCP solution supports both IPv4 and IPv6 and is suitable for use in high-volume, high-reliability applications. DHCP is available for free download under the terms of the ISC License, a BSD-like license. (Note: ISC DHCP will transition to the MPL 2.0 license starting with ISC DHCP 4.4.0.)

ISC is developing a new DHCP server called Kea that is intended to replace ISC DHCP in most server implementations. We recommend that new implementers consider Kea and implement ISC DHCP only if Kea does not meet their needs. The Kea distribution currently does not include a client or relay.

snmptrapd is an SNMP application that receives and logs SNMP TRAP and INFORM messages.
Note: By default, all IPv4 interfaces listen on UDP port 162. Since 162 is a privileged port, snmptrapd must normally be run as root.

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