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Sooner or later, all system administrators face the challenge of administering servers.
And, tools come to rescue the sysadmins life.
It could be a database, app server, web server, messaging applications, caching, etc.
The following tools should help you in many ways.
Zenmap can store profiles, which certainly is one of its strengths.
These profiles can be reused for later scans.
Webmin
Thisone-stop-shop tool offers a web-based interface for administering every aspect of a Linux server.
From file sharing to DNS, to Apache web server and various databases.
You just have to download the latest version and copy it to the servers home folder.
After that, you simply trigger the command:dpkg -i webmin_(version).deb.
Cockpit
Cockpitis another server administration tool.
The installation procedure varies for each distribution.
In some distributions, like Fedora, CentOS and RHEL, Cockpit can be found in the official repositories.
gping
A fantastic graph-based PING utility.
The great thing is,gpinglets you visualize multiple endpoints ping in a real-time graph.
This can be a great choice when you have to compare the ping latency for two or more URLs.
Shorewall
Thistool adds an abstraction layer for achieving a higher-level configuration of Netfilter.
Users can easily deploy different policies for each zone.
Nagios
Thisopen-source web connection monitoring tool was launched in 2002 under the name NetSaint.
Nagios also provides a base for other monitoring utilities, such as Naemon, Icinga, and OP5.
Nagios got greatdocumentationfor you to get it started.
The main reason for its popularity is perhaps its portability.
It can also be automated through scripting and extended via plugins.
Among them, the de facto standard isNmap, due to its combination of usability and versatility.
connection admins use it for connection discovery and vulnerability detection.
In this way, the administrator canfind open portsand take appropriate measures to reduce security risks.
Nmap users agree that it adapts well to any environment where identification of endpoints or vulnerability scanning is required.
However, you need acertain level of experienceto interpret its output correctly.
The utilities we mentioned here are only a few of the many there are available.
