Security News

How to install and use the open source OTPClient 2FA tool on Linux
2020-02-28 21:15

If your desktop of choice is Linux, you don't have to be without a 2FA tool, thanks to OTPClient. What about those looking for an open source GUI 2FA tool for the Linux desktop? If that's you, there's OTPClient.

How to create a Linux user that cannot log in
2020-02-25 21:58

For security reasons, you might need to create a Linux user without the ability to log in. As a Linux system administrator, there are times when you might need to create a user who doesn't have the ability to log in.

The “Cloud Snooper” malware that sneaks into your Linux servers
2020-02-25 13:35

TCP source ports only need to be unique for each outbound connection, so most programmers simply let the operating system choose a port number for them, known in the jargon as an ephemeral port. Most of the time it won't, because the crooks use source port numbers below 10000, while conventional software and most modern operating systems stick to source port numbers of 32768 and above.

Microsoft uses its expertise in malware to help with fileless attack detection on Linux
2020-02-25 12:30

Hey, Linux fans! Microsoft has got your back over fileless threats. A fileless attack tends to hit via a software vulnerability, inject a stinky payload into an otherwise fragrant system process and then lurk in memory.

New OpenSMTPD RCE Flaw Affects Linux and OpenBSD Email Servers
2020-02-25 02:54

OpenSMTPD has been found vulnerable to yet another critical vulnerability that could allow remote attackers to take complete control over email servers running BSD or Linux operating systems. OpenSMTPD, also known as OpenBSD SMTP Server, is an open-source implementation of the Simple Mail Transfer Protocol to deliver messages on a local machine or to relay them to other SMTP servers.

Microsoft Brings Defender Antivirus for Linux, Coming Soon for Android and iOS
2020-02-21 16:36

Almost within a year after releasing Microsoft Defender Advanced Threat Protection for macOS computers, Microsoft today announced a public preview of its antivirus software for various Linux distributions, including Ubuntu, RHEL, CentOS and Debian. If this news hasn't gotten you excited yet.... Microsoft is also planning to soon release Defender ATP anti-malware apps for smartphones and other devices running Google's Android and Apple's iOS mobile operating systems.

Microsoft Brings Defender Antivirus for Linux, Coming Soon for Android and iOS
2020-02-21 08:50

Almost within a year after releasing Microsoft Defender Advanced Threat Protection for macOS computers, Microsoft today announced a public preview of its antivirus software for various Linux distributions, including Ubuntu, RHEL, CentOS and Debian. If this news hasn't gotten you excited yet.... Microsoft is also planning to soon release Defender ATP anti-malware apps for smartphones and other devices running Google's Android and Apple's iOS mobile operating systems.

How to use Restricted Shell to limit user access to a Linux system
2020-02-20 16:28

Learn how to prevent Linux users from executing certain commands and confining them to their home directory by employing rbash. We want to create the user such that their shell is rbash.

How to use Restricted Shell to limit user access to a Linux system
2020-02-20 16:26

Learn how to prevent Linux users from executing certain commands and confining them to their home directory by employing rbash.

Peripherals With Unsigned Firmware Expose Windows, Linux Computers to Attacks
2020-02-18 12:24

Peripheral devices with unsigned firmware can expose Windows and Linux machines to attacks, allowing hackers to install stealthy and persistent malware, steal valuable information, or take control of a computer. Researchers at firmware security company Eclypsium have discovered that many peripheral device manufacturers have not implemented checks to ensure that the firmware running on their products comes from a trusted source.