ShareWiz Security

Please note that additional software is installed as per the instructions below, but the actual configuration of each individual software package will be done later.

The programs in this package are used to assemble, link and manipulate binary and object files. They may be used in conjunction with a compiler and various libraries to build programs.

Most is an improvement of the more and less commands, allowing data to be viewed in a scrollable window.

In addition to displaying ordinary text files, most can also display binary files as well as files with arbitrary ascii characters.

sysv-rc-conf provides a terminal GUI for managing /etc/rc{runlevel}.d/ symlinks.

The interface comes in two different flavors, one that simply allows turning services on or off and another that allows for more fine tuned management of the symlinks.

Unlike most runlevel config programs, you can edit startup scripts for any runlevel, not just your current one.

htop is an interactive process viewer, which allows killing and renicing of processes without entering their PIDs.

facter is a system information utility that makes it easy to determine information about the system hardware.

It is an alternative to the lshw command.

nmap is a network security monitor.

It is used to check the security of the system.

It can also be used to check for networking problems.

hping3 is a network tool able to send customised packets.

Using hping3 allows the following to be tested:

• Test firewall rules
• Advanced port scanning
• Test net performance using different protocols, packet size, TOS (type of service) and fragmentation.
• Path MTU discovery
• Remote OS fingerprinting
• TCP/IP stack auditing
• A lot more

The traceroute utility displays the route used by IP packets on their way to a specified network (or Internet) host. Traceroute displays the IP number and host name (if possible) of the machines along the route taken by the packets. Traceroute is used as a network debugging tool. If you're having network connectivity problems, traceroute will show you where the trouble is coming from along the route.

Install traceroute if you need a tool for diagnosing network connectivity problems.

The 7z (7-Zip) archive format offers good compression ratios and is an open source format.

p7zip is easy to use on the command line. To compress a file named testfile to testfile.7z:

To decompress the archive:

lftp is a file retrieving tool that supports FTP, HTTP, FISH, SFTP, HTTPS and FTPS protocols under both IPv4 and IPv6. Lftp has an amazing set of features, while preserving its interface as simple and easy as possible.

The main two advantages over other ftp clients are reliability and ability to perform tasks in background. It will reconnect and reget the file being transferred if the connection broke. You can start a transfer in background and continue browsing on the ftp site. It does this all in one process.

When you have started background jobs and feel you are done, you can just exit lftp and it automatically moves to nohup mode and completes the transfers. It has also such nice features as reput and mirror. It can also download a file as soon as possible by using several connections at the same time.

lftp can also be scriptable, it can be used to mirror sites, it lets you copy files among remote servers (even between FTP and HTTP). It has an extensive online help. It supports bookmarks, and connecting to several ftp/http sites at the same time.

fsarchiver FSArchiver is a system tool that allows you to save the contents of a file-system to a compressed archive file. The file-system can be restored on a partition which has a different size and it can be restored on a different file-system. Unlike tar/dar, FSArchiver also creates the file-system when it extracts the data to partitions. Everything is checksummed in the archive in order to protect the data. If the archive is corrupt, you just loose the current file, not the whole archive.

If you have an external mail server you can test the command-line email utility by following these instructions:

Issue the following command:

and add your email server:

Test the ability to send email by typing: