Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up.
Sign up to join this community
I have trying to copy some files from local machine to remote host.
root@local:~$ scp /var/www/html/file.php root@remote_host:/var/www/html/test/
The result is
scp: /var/www/html/test: Permission denied
root@remote_host's password: Permission denied, please try again.
Those are the rights of the folder on the remote machine
drwxrwxr-x
Any ideas what can be the problem?
If you login as The root then root has all permissions allowed, regardless permissions on any directory (exclusion can be only if directory has system immutable flag over chflags(1))
You either providing a wrong password or remote host used public key authentication only.
or remote host used public key authentication only I'm not familiar whit this. I can login in as root without any problem but I can copy.
Jul 23, 2015 at 11:35
rsync -v -e ssh SomeLocalFile root@remoteHost:~ . Does SomeLocalFile copied to the root's home ? Try also which scp and check permissions on founded path for scp on remote server
The reasons could be various, of course.
The most obvious answer is that, for one reason or another, you cannot be authenticated by the remote system. However, since you are outputting the directory permissions on the remote system, I assume you have the rights and ability to access it by some means (but perhaps not by ssh).
So, the first thing to do is to ssh to the machine and make sure you can actually write to that location (which you may have already tried):
ssh root@remote_host
cd /var/www/html/test/
touch scratch
If you can see the empty file scratch, then you know you can write.
Supposing you can properly access the system but the above does not work, it is also possible there is not actually write permissions on the directory. One example would be if the directory on the remote machine is within a mounted filesystem of a certain type, for example NTFS (which won't give you reliable UNIX-type modes), and the kernel sets it to read-only because it wasn't mounted via fuse to give write permissions. You'd need to check more carefully on the local settings, but this would be a very unusual setup unless it is new (or designed that way).
Debugging the system from here would be hard for me, so I'll just give you an alternate method to try. If you can access the system via ssh and write files from within the system, then a way to do it is just to do the opposite way around, if your local computer is not behind a firewall, etc.
You can easily find the IP of the computer you ssh'd from without even moving to another terminal. Let's just make it an environment variable for simplicity:
export IP="`echo $SSH_CLIENT | awk '{print $1}'`"
I generally include this line in, for example, ~/.bashrc because I find it handy.
In any case, then
scp user@$IP:/var/www/html/file.php /var/www/html/test/
Of course, if you want to be running a program to do these updates automatically on the local machine, this will not resolve your problem just yet! There are ways to resolve that by calling commands via SSH (so you would be calling an scp via ssh, which seems counter-intuitive); however, for it to be fully automated you'd need to set up an ssh key, and make no password for the key. This is not the kind of thing I would recommend for root access to a machine, and some kind of debugging with the remote machine's ssh needs to be done that is blocking scp.
scp user@myip:/var/www/html/file.php /var/www/html/test/ of course i change user@myip with real one nothing happen. Just hanging there and white dot blinking in console..
Jul 23, 2015 at 11:56
[root@remote_host /var/www/html/test ]# touch test, [root@remote_host /var/www/html/test ]# ls -al, -rw-r--r-- 1 root root 0 Jul 23 14:55 test .. so I can create file in the folder
Jul 23, 2015 at 11:56
nmap -PN localhost where localhost is verbatim. Keep in mind it works like this: ssh -p 22 and scp -P 22 for port 22 (default). Case of p and P is not symmetric. I think no problem, but you might not mention details of your server. If port is 22, you can use the following with the target and location fields identical to scp, basically: alias scpresume="rsync --partial --progress --rsh=ssh -e 'ssh -p 22'"
if there's an entry of your local host's pub key in remote_host:/.ssh/authorized_keys, then you'd be authenticated with pki instead of inputting password.I understand now. I never before logged without password on that server. No, my IP is the same as always.