Generate random bytes with openssl
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
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Analyze Linux boot process with systemd
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
[Raspberry Pi] checking kernel and firmware version
To check RPi kernel version: uname -r To check RPi firmware version: vcgencmd version
Configuring openfortivpn on Fedora
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
Running VMRC (VMware Remote Console) 9.0 on Fedora 28
To run VMRC (VMware Remote Console) on Fedora 28 use below steps. Download VMRC 9.0 from VMware website (around 60MB): VMware Remote Console 9.0 for Linux Install VMRC 9.0 as a root: bash ./VMware-Remote-Console-9.0.0-4288332.x86_64.bundle To fix zlib version conflict (Fedora 28 ships with zlib 1.2.11 while VMRC 9.0 ships with zlib 1.2.9) use following commands… Continue reading Running VMRC (VMware Remote Console) 9.0 on Fedora 28