Com: CentOS 7 Linux Server Cookbook – Second Edition (9781785887284): Oliver Pelz, Jonathan Hobson: Books.
Other attacks, including those on the infrastructure of the Internet itself are largely absent from public dialogue. Large-scale loss of user data is most likely to reach the media, prompting companies to implement data security procedures to mitigate the risks of a potential public relations disaster. Rarely do online security issues enter the public consciousness.
Lsusb – lsusb is a utility for displaying information about USB buses in the system and the devices connected to them. )
example: [email protected] ]$ lsusb -v (this command lists all of the usb devices detected by the system in verbose mode. To use lsusb make sure you have usb-utils package installed.
First we will install ntpd, then update the current time on the server, configure ntpd to restart on server boot, and then start ntpd. This is just a brief howto about installing and configuring NTPD (Network Time Protocol Daemon) on a Linux server which in this case is specifically NTPD.
Ssh – Starts the secure shell connection with a system running the sshd (secure shell daemon). Example: [email protected] ]$ ssh 192. 10 (this command initiates a secure shell connection between the localhost computer and the internal local network computer at 192.
The user will be required to enter their own password to complete the command by default, this option can be changed to not require a password. Sudo – Super user”do” allows a user to issue some commands which require elevated privileges as defined in /etc/sudoers but does not require knowledge of the root password. Example: [email protected] ]$ sudo mount -t ext3 /dev/hdk3 /mnt/foo (this command allows a normal user with sudo privileges to issue a command that requires elevated privileges to run.
Note: you must first run the command updatedb before using locate. It uses incremental encoding to compress its database to make searching faster, but it will also store file permissions and ownership so that users will not see files they do not have access to. Locate – Locate, in combination with updatedb provides a secure way to index and quickly search for files on your system. Example: [email protected] ]$ locate gimp (this command searches a secure database starting at / for the given string.
Example: [email protected] ]$ jwhois google. The host to query is taken from a global configuration file, a configuration file specified on the command line, or selected directly on the command line. Com (this command queries the whois database for the contact and domain registration details of google. Jwhois – Jwhois searches Whois servers for the object on the command line.
Installing CentOS 5 Via HTTP or FTP. Common SELinux related commands in alphabetical order:. SELinux Common Commands & Troubleshooting*SELinux. Ausearch – SELinux audit log. *Install OwnCloud on Centos*Installing &. *Post Install Options*Adding Additional Hard Disk(s.
This is quite helpful when issuing commands from many directories without typing the entire path to the command. Most commonly used to run commands / daemons which require root privileges, view / alter certain directories, files and log files. Example: [email protected] ]$ su – (this command will prompt the user for the root password and, if supplied correctly, logs the user into roots profile. The – denotes that the user should inherit roots profile and path. System administrators should see the “sudo” command for extending certain privileges to users who do not need or cannot be trusted with the root
password. Su – Substitute user command.
The post is written keeping in mind you have installed RHEL/CentOS Minimal Install which is preferred in Enterprise and production environment. This article aims at “Things to do after installing RHEL/CentOS 7”.
The attack — launched by “hacktivist” group New World Hacking — targeted the BBC, one of the biggest news and media . As the year turned from a turbulent 2015 to a hopeful 2016, online criminals set the bar high with a DDoS attack that was apparently the biggest yet seen, dwarfing 2015’s already massive attacks.