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nixCraft Linux / UNIX Newsletter |
| Linux security alert: Bug in sudo’s get_process_ttyname() [ CVE-2017-1000367 ] Posted: 30 May 2017 02:17 PM PDT There is a serious vulnerability in sudo command that grants root access to anyone with a shell account. It works on SELinux enabled systems such as CentOS/RHEL and others too. A local user with privileges to execute commands via sudo could use this flaw to escalate their privileges to root. Patch your system as soon as possible. |
| How to extract multiple tar ball (*.tar.gz) files in directory on Linux or Unix Posted: 30 May 2017 10:29 AM PDT I have tried tar -xvf *.tar.gz command, but getting an error that read as:tar (child): *.gz: Cannot open: No such file or directory tar (child): Error is not recoverable: exiting now tar: Child returned status 2 tar: Error is not recoverable: exiting now How can I extract multiple *.tar.gz files in directory using Linux or Unix-shell prompt? |
| How to append text to a file when using sudo command on Linux or Unix Posted: 30 May 2017 12:34 AM PDT I am trying to add entry to /etc/hosts file using 'sudo echo '192.168.1.254 router' >> /etc/hosts' but getting an error that read as, -bash: /etc/hosts: Permission denied. How do I insert or append text to a file when running sudo command on Linux or Unix-like system? |
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