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The Journal Of A Linux Sysadmin

Security Advisory – TCP SACK PANIC – Kernel vulnerabilities – CVE-2019-11477, CVE-2019-11478 & CVE-2019-11479

Redhat Ubuntu reference: https://access.redhat.com/security/vulnerabilities/tcpsack https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-11477.html https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Primarily Impacted Products Red Hat Enterprise Linux 8Red Hat Enterprise Linux 7Red Hat Enterprise Linux 6Red Hat Enterprise Linux 5Red Hat Atomic HostRed Hat Enterprise MRG 2Red Hat OpenShift Container Platform 4 (RHEL CoreOS)Red Hat OpenShift OnlineRed Hat OpenShift Dedicated (and dependent services)OpenShift on…

Disable MySQL Strict Mode

This is enabled by default, but you can disable it in one of a couple ways. First, verify which mode(s) MYSQL is running with: $ mysql -u root -p -e "SHOW VARIABLES LIKE 'sql_mode';" You'll need to replace root with whatever username has superuser permissions on your server (but, it's usually just root).…

Vim Cheat Sheet´╗┐

Global :help keyword - open help for keyword:saveas file - save file as:close - close current paneK - open man page for word under the cursor Cursor movement h - move cursor leftj - move cursor downk - move cursor upl - move cursor rightH - move to top of screenM - move to middle of screenL - move to bottom of screenw - jump forwards to the start of a wordW - jump forwards to the start…
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