Why I cannot login remote server with its root
# ssh root@192.168.122.96
root@192.168.122.96's password:
Permission denied, please try again.
Do according to [1].
NOTE: on Ubuntu, remember to restart ssh service like this “sudo restart ssh”.
Similar Posts
How to check the replication factor of a file in HDFS?
ByEric MaA related question: how to find the replication factors of files in a HDFS cluster? method 1: You can use the HDFS command line to ls the file. The second column of the output will show the replication factor of the file. For example, $ hdfs dfs -ls /usr/GroupStorage/data1/out.txt -rw-r–r– 3 hadoop zma 11906625598 2014-10-22…
Gnome: disabling / deleting keyrings
ByQ AHow to disable/delete the current keyrings on gnome? If the Gnome keyrings are not needed, or we forget the password, we can disable/delete the current keyrings. The keyrings are stored under ~/.gnome2/keyrings/ To disabled or delete current keyrings, we can simply delete this folder: rm -rf ~/.gnome2/keyrings/ Remember to backup this directory if you still…
In Node.js, how to import functions from another JavaScript file?
ByEric MaIn Node.js, how to import functions from another JavaScript file like source common.sh in Bash? In the .js file to be imported such as ‘common.js’, organize functions to be exported like module.exports = { func1: function () { // func1 impl }, func2: function () { // func2 impl } }; In the other .js…
How to set one task’s CPU affinity quickly?
How to set one task’s CPU affinity quickly? 1, Get this task’s ID # taskset -pc PID 2, Set this task’s CPU affinity # taskset -c affinity ./task There is also another format # taskset -pc affinity pid For example: set process with PID 3783 to CPU 15 # taskset -pc 15 3783 Read more:…
How to convert svg to png in Linux?
ByEric MaHow to convert a svg image file to a high-quality png file in Linux? inkscape works great with vector images (better than ImageMagikk’s convert). Try this command to convert in.svg to a 1000×1000 png image: inkscape -z -e out.png -w 1000 -h 1000 in.svg Read more: How to convert .pptx slides to .jpg or .png…
Getting Hostname in C Programs in Linux
ByQ AIn C, how to get the hostname of the node? In C, you may use the gethostname function. #include <unistd.h> int gethostname(char *name, size_t namelen); The gethostname() function shall return the standard host name for the current machine. The namelen argument shall specify the size of the array pointed to by the name argument. The…