I would recommend tar. When the file trees are already similar, rsync performs very well. However, since rsync will do multiple analysis passes on each file, and then copy the changes, it is much slower than tar for the initial copy. This command will likely do what you want. It will copy the files between … Read more
To quickly kill all the stopped jobs under the bash, enter: kill -9 `jobs -ps` jobs -ps lists the process IDs (-p) of the stopped (-s) jobs. kill -9 `jobs -ps` sends SIGKILL signals to all of them.
You can get a pretty good measure of this using the iostat tool. % iostat -dx /dev/sda 5 Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sda 0.78 11.03 1.19 2.82 72.98 111.07 45.80 0.13 32.78 1.60 0.64 The disk utilisation is listed in the last column. This is defined as … Read more
Note: in the following commands, a command beginning with ‘root#’ means it needs to be run as root. To find which files were installed by a package, use dpkg -L: $ dpkg -L $package apt-file can tell you which files will be installed by a package before installing it: root# apt-get install apt-file root# apt-file … Read more
Most likely your ls is aliased to ls –color=auto, which tells ls to only use colors when its output is a tty. If you do ls –color (which is morally equivalent to ls –color=always), that will force it to turn on colors. You could also change your alias to do that, but I wouldn’t really … Read more
You could do that with ssh-keygen, however, remember that the private key is meant to be private to the user so you should be very careful to keep it safe- as safe as the user’s password. Or even safer, as the user is not likely to be required to change it upon first login. ssh-keygen … Read more
Yes, it is. What you probably want is multiple “server” stanzas, each with a different port, but possibly (probably?) the same server_name, serving the “different” content appropriately within each one, maybe with a different document root in each server. Full documentation is here: http://nginx.org/en/docs/http/server_names.html Example: server { listen 80; server_name example.org www.example.org; root /var/www/port80/ } … Read more
Since all Linux distributions run the same (yup, it’s a bit simplified) Linux kernel and differ only in userland software, it’s pretty easy to simulate a different distribution environment – by just installing that userland software and pretending it’s another distribution. Being specific, installing CentOS container inside Ubuntu OS will mean that you will get … Read more
This could also be because of a protocol mismatch. In 2017 Microsoft patched Windows Servers and advised to disable the SMB1 protocol. From now on, mount.cifs might have problems with the protocol negotiation. The error displayed is “Host is down.”, but when you do debug with: smbclient -L <server_ip> -U <username> -d 256 you will … Read more
I would prefer the ssh-keygen -y -e -f <private key> way instead of the accepted answer of How do you test a public/private DSA keypair? on Stack Overflow. ssh-keygen -y -e -f <private key> takes a private key and prints the corresponding public key which can be directly compared to your available public keys. (Hint: … Read more