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Check CPU Vulnerabilities under Linux cat /sys/devices/system/cpu/vulnerabilities/spectre_v2 cat /sys/devices/system/cpu/vulnerabilities/l1tf cat /sys/devices/system/cpu/vulnerabilities/spec_store_bypass cat /sys/devices/system/cpu/vulnerabilities/spectre_v1 cat /sys/devices/system/cpu/vulnerabilities/meltdown
Generate 32 bytes, hex encode: openssl rand -hex 32 Generate 32 bytes, base64 encode: openssl rand -base64 32 Generate 32 bytes, save output to file: openssl rand -out file.txt 32
Analyze boot time: systemd-analyze Find long booting services: systemd-analyze blame Plot SVG chart of boot process timeline: systemd-analyze plot > tmp.svg Critical chain: systemd-analyze critical-chain Analyze logs from particular service i.e. networking.service journalctl -xe -u networking.service
To check RPi kernel version: uname -r To check RPi firmware version: vcgencmd version
Configuring openfortivpn on Fedora Install required packages: yum install openfortivpn Create config file /etc/openfortivpn/my-config with following content: host = IPADDR port = TCPPORT username = USERNAME password = PASSWORD set-dns = 1 set-routes = 1 trusted-cert = CERTSHA256SUM To connect use following command: openfortivpn -c /etc/openfortivpn/my-config