CVE-2014-6271 bash issue on Linux

Bash allowed bypassing environment restrictions in certain environments. Ubuntu already updated bash package for LTS, so to fix bash issue simply run: sudo apt-get update && sudo apt-get install bash Also updated bash available for Centos: sudo yum update bash Solution for CVE-2014-6271 on RedHat   P.S. This patch is not full

Ubuntu openssl ‘heartbleed’ issue

The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software  library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. SSL/TLS provides communication security and privacy over the Internet for applications such as web, email, instant messaging (IM) and some virtual private […]

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зручна утиліта для перевірки мережі mtr

Зручна утиліта, яка суміщає в собі функціонал ping і traceroute – mtr Використання mtr My traceroute [v0.71] example.lan Sun Mar 25 00:07:50 2007 Packets Pings Hostname %Loss Rcv Snt Last Best Avg Worst 1. example.lan 0% 11 11 1 1 1 2 2. ae-31-51.ebr1.Chicago1.Level3.n 19% 9 11 3 1 7 14 3. 0% 11 […]

linux screen utility

screen -S name “Launch new screen session” screen -list “List screen sessions” screen -r name “Attach to screen” Ctrl+a, ? Show built in help Ctrl+a, c Create a new screen Ctrl+a, Ctrl+a Cycle through screens (just hold Ctrl down, type aa) Ctrl+a, n Cycle through screens (Next screen) Ctrl+a, Ctrl+n Another cycle through screens Ctrl+a, […]