Commands by pqatsi (7)

  • After install https://linux.dell.com/repo/community/openmanage/ (Complete, all), install these packages or you will get segfaults on update and it will fail.


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    apt install raidcfg dtk-scripts syscfg smbios-utils sfcb cim-schema dcism
    pqatsi · 2020-05-29 06:49:23 31
  • Update method: 1) Find you current version and release in https://esxi-patches.v-front.de/ESXi-6.5.0.html (You can copy the Build number and Control+F in the page). 2) Run this command release per release, changing the with the name of Imageprofile. As example: esxcli software profile update -d https://hostupdate.vmware.com/software/VUM/PRODUCTION[168/1029] depot-index.xml -p ESXi-6.5.0-20180304001-standard This way is needed because updates arent cumulative, so need to do one by one. Show Sample Output


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    esxcli software profile update -d https://hostupdate.vmware.com/software/VUM/PRODUCTION[168/1029] depot-index.xml -p <Release>
    pqatsi · 2018-04-03 13:26:58 0

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    dmesg -L=always | less -r
    pqatsi · 2018-01-19 13:04:43 0

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    dd if=<image> of=/dev/sdx bs=4M iflag=direct,fullblock oflag=direct status=progress
    pqatsi · 2018-01-08 00:42:10 0

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    echo "IPv4: $(curl -s4 ip.appspot.com)" ; echo "IPv6: $(curl -s6 ip.appspot.com)"
    pqatsi · 2017-12-26 12:52:38 0
  • Changelog: Changing ping to "ping -A -c1 -w10" - targeting a quick and reliable ping, even on slow networks.


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    ADDR=127.0.0.1 ; for i in `seq 1300 1501`; do echo -ne "Pacote de tamanho $i bytes" ; ping -A -c1 -w10 -s $i -Mdo $ADDR 2>&1 > /dev/null || break ; echo -ne "\r\033[2K" ; done ; echo -ne "\r\033[2K" ; echo -e "MTU bem sucedido com `expr $i`"
    pqatsi · 2015-12-18 18:11:47 0
  • Tests connection speed over HTTP request. Can use a lot of http mirrors of SAME file (Useful for test with Ubuntu mirrors, as example) and the split will be done opening connections in all urls if possible. -s Split connections in N number MAX=16 -j Set max concurrent downloads, must be equal to -s or will be restricted to this number. -x Set max connection per server, recommended to be the same of split. -k Min Split Size, default is 20MB, usefull to really force more splited connections over same file -d Directory to save the "file", in this case, /dev -o Points output to null --file-allocation=none Do not attempt to prealocate the file. --allow-overwrite=true Overwrite to /dev/null. Recommend use "rm /dev/null.aria2" after if runned as root. Show Sample Output


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    aria2c -s16 -j16 -x16 -k1M -d /dev -o null --file-allocation=none --allow-overwrite=true <url>
    pqatsi · 2015-06-18 13:13:12 0

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Detect illegal access to kernel space, potentially useful for Meltdown detection
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swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Remove all unused kernels with apt-get
This should do the same thing and is about 70 chars shorter.

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