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Trumpi

Jumbo Frames or 9000 MTU ping test

Mac OSX: ping -D -s 8184 [destinationIP] On Linux: ping -M do -s 8972 [destinationIP] On Windows: ping -f -l 9000 [destinationIP] External Links https://blah.cloud/hardware/test-jumbo-frames-working/

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Belekas

systemctl

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Belekas Trumpi

cloud-init

External Links https://en.opensuse.org/Kubic:MicroOS/cloud-init https://en.opensuse.org/Portal:MicroOS/cloud-init

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Fun Trumpi Uncategorized

CentOS 8.1.1911 dvd iso size

I really like CentOS8 image size:

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Belekas

setting up your image for a cloud using cloud-init

Currently, some links on how to create a cloud image. https://cloudinit.readthedocs.io/en/latest/topics/examples.html https://cloudinit.readthedocs.io/en/latest/topics/network-config-format-v1.html#more-examples https://www.lisenet.com/2017/centos-7-server-hardening-guide/ https://rharmonson.github.io/cos7inst.html https://access.redhat.com/discussions/664843 https://ask.openstack.org/en/question/63589/centos-7-password-issue-for-guest-image-kindly-suggest/ https://ask.openstack.org/en/question/60803/any-openstack-centos-image-with-a-set-password-i-can-use/

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Belekas

Customised keyboard layout

It took me a long time to get a correct keyboard layout for myself. First, it was Physical keyboard layout which was bad (I had ANSI one)! So my friend spotted me to different standards: can be seen here. Later when I got correct Physical layout (with BIG ENTER key) (Drevo BladeMaster Pro). Still something […]

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Belekas

Force OpenStack to use public endpoint

External link: https://access.redhat.com/solutions/3883021

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Belekas Fun Trumpi

Video 2 Audio

ffmpeg -i VIDEOFILE -acodec libmp3lame -metadata TITLE=”Name of Song” OUTPUTFILE.mp3

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Belekas Trumpi

dpdk

https://lpic.lt/1100-dpdk-performance-nfv-ct.pdf1100-dpdk-performance-nfv-ct.pdf

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Fun Kompai Trumpi

iptables taisykles part2

iptables –A OUTPUT -p tcp -m multiport –dport http,https -i eth0 -o eth1 -m time –timestart 12:00 –-timestop 13:00 –d 31.13.64.0/18 -j ACCEPT iptables -A INPUT -p udp -m time –timestart 02:00 –timestop 03:00 -j DROP iptables –A INPUT –p tcp –syn -m multiport -–dport http,https –m connlimit -–connlimit-above 20 –j REJECT -–reject-with-tcp-reset iptables -L […]