Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

solution is to use key-based logins; each such login generates a unique 1,024- bit private and public key p ...

authorized_keys read-only. With that done, you can type exit to disconnect from the remote machine and retur ...

developers: Virtual Network Computing (VNC). VNC is a system for controlling a computer remotely and sharing deskt ...

FIGURE 19.1 Desktop sharing preferences. ...

FIGURE 19.2 Remote desktop viewer. From the screen shown in Figure 19.2, select an entry and select the Open ...

Ltd., a company dedicated to developing and supporting VNC [http://www.tightvnc.com—An alternative to VNC called Tigh ...

CHAPTER 20 Securing Your Machines IN THIS CHAPTER Understanding Computer Attacks Assessing Your Vulnerabilit ...

See the discussion of setting a variable with echo in Chapter 11, “Command-Line Master Class, Part 1,” or ...

system you run. Autocracking scripts also come in another flavor: prewritten code that exploits a vulnerabil ...

server? If not, why have BIND installed? Go through and ensure that you have only the software you need ...

information Nmap shows you will not be a surprise. If there is something open that you do not recognize, ...

The better the physical security around your network, the more secure the network will be. (This applies ...

you track down a missing device, provided that Prey was installed on the device before it was lost. Ther ...

the day, the hour, the minute, and the seconds). This report can be read using the twprint utility, like th ...

Linux never puts the current directory in your executable path, so typing ls runs /bin/ls rather than ...

Click here to view code image matthew@seymour~:$ sudo ufw enable To disable UFW, replace enable with dis ...

show REPORT Shows a firewall report -version Displays version information Next, you want to enable firewall ...

built-in firewall. UFW simplifies the user tasks and syntax but really just uses iptables. You probably won ...

can even use it to configure NAT routers. For more, see the man pages for iptables and its IPv6 cousin, ip6t ...

sys_nice, capability syslog, # rsyslog configuration /etc/rsyslog.conf r, /etc/rsyslog.d/ r, /etc/ ...