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Security
Valid sudoers Syntax Can Still Grant Too Much Access
visudo -c can return “parsed OK” for a rule that authorizes more than its reviewer intended. That is not a parser defect.…
KNOWLEDGE, PUT TO WORK
Linux Security.
Practical guides, fresh perspectives and technical know-how from Voxfor.
The knowledge library
7 articlesArticles & guides
Security
AIDE File Integrity Monitoring: Build a Baseline You Can Trust
AIDE can tell you that a Linux file changed, but it cannot tell you whether the change was malicious, approved, or already…
Security
Linux Audit Lost Events Mean the Evidence Is Already Incomplete
When auditctl -s shows a larger lost value than the previous sample, the Linux Audit trail already has a gap. Those discarded…
Security
OpenSSH MaxStartups Drops Connections Before Authentication
kex_exchange_identification: read: Connection reset by peer does not prove an SSH password, key or account problem. When the server log also reports…
Linux
How to Reset or Change the Root Password in Linux
Losing access to the root account in Linux can feel overwhelming, especially considering its critical role in managing the operating system. However,…
Linux
How to Delete Rules in iptables
Managing iptables is a necessary skill for Linux system administrators and security enthusiasts. Delete Rules in iptables confirm the proper firewall configuration…
Linux
How to Add a User to a Linux Group
Linux is a widely used, powerful operating system that's essential for personal computing, servers, and development. Managing user permissions is crucial for…
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