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apt-get build-dep xserver-xorg-video-intel lrzip download from github version 6/3/0 then install bz2 lib then install lzo2 lib after configure make make install !!! finished |
Linux & Unix (Ubuntu,Debian,RedHat,Centos)
Principles of Network and System Administration,
What is network and systemadministration?,
Applying technology in an environment,
The human role in systems,
Ethical issues,
Is systemadministration a discipline?,
the challenges of systemadministration,
Common practice and good practice,
Bugs and emergent phenomena ,
Themeta principles of systemadministration ,
Knowledge is a jigsaw puzzle,
To the student ,
Some road-maps
Install gdrive terminal on linux ubuntu
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sudo apt-get install golang git mercurial nano .bashrc add this 2 lines, GOAPTATH=..... PATH=$PATH"".....GOPATH... then go get -u github.com/odeke-em/drive/cmd/drive drive init drive push file_name drive push Directory_name |
Linux graphic card configurations and comparison nvidia vs ati
http://superuser.com/questions/407056/xinerama-creates-a-panning-viewport
http://www.phoronix.com/scan.php?page=article&item=linux-quad-desktop&num=1
http://superuser.com/questions/564374/4-monitors-on-linux-workstation
debian reset root password
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Solution 1 Boot into grub, # DO NOT NOT not press enter. # Press e to go into edit mode. Scroll down to the kernel line, go to the end "linux /boot/vmlinuz-3.0……." add the this line init=/bin/bash Press Ctrl X to boot # Remount / as Read/Write mount -rw -o remount / # Change the root account password with passwd # Change any other account password with passwd username Solution 2 # Boot from another installation of Debian. # Such as LiveCD to access "/" root partition. # Mount the partition where you have Debian's "/" (root directory), # Access directory to /mnt/etc # nano /mnt/etc/shadow. # it should looks like , root::$6$fsdsdgdsg74.:14862:0:99999:7::: # Reboot and login as root without a password. # passwd root # exit |
get the total size of given file types in directory
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find . -type f -name '*.jpg' -exec du -ch {} + |
At the end you will see the total size,
delete route commandline linux terminal
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route del -net 10.1.0.0 netmask 255.255.255.0 metric 2 route del -net 0.0.0.0 gw 192.162.2.2 netmask 2.2.2.2 dev eth9 route del -net 0.0.0.0 netmask 2.2.2.2 gw 192.162.2.2 dev eth9 route del -net 10.1.0.0 netmask 255.255.255.0 |
PFsense too slow NAT connection problem Fixed !
Symptoms:
– Ping works with no problem, from LAN to LAN,
from WAN to WAN and any cross-subnet combination with the correct NAT/gateway rules.
– TCP connections work in one way or between specific hosts, but in one direction to WAN or from WAN they don’t work,
Slow traffic (~5.67 Kbps) !!!!
– UDP work sometimes,
First : Login Host machine, SERVER which is Main
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$ sudo ethtool -K VMwareswitch17 tx off |
Second: Open pfsense
Disable the hardware checksum offload.
References
https://doc.pfsense.org/index.php/VirtIO_Driver_Support
https://doc.pfsense.org/index.php/Limiters
https://turbofuture.com/computers/How-to-Configure-Deep-Packet-Inspection-Using-pfSense
https://www.reddit.com/r/PFSENSE/comments/45k0n5/pfsense_slow_wan_throughput/