Please help me out, as I'm trying to execute 'rm -Rf' and 'ln -s' on a bunch of servers through 'ssh -i' and somehow symlink fails, although running directly on servers works...
$ ssh -i ~/.ssh/id_rsa www#web1 '
rm -Rf /home/www/system &&
ln -s /home/www/framework/system /home/www/system'
ln: creating symbolic link `/home/www/system' to `/home/www/framework/system': No such file or directory
Here is what I see on the remove server for path /home/www/framework:
$ ls -al
total 32
drwxr-xr-x 5 www www 4096 2011-04-26 09:21 .
drwxr-xr-x 5 www www 4096 2011-06-03 11:25 ..
-rw-r--r-- 1 www www 2547 2011-04-26 09:21 license.txt
drwxr-xr-x 8 www www 4096 2011-04-26 09:21 system
Problem solved! This is sooo weird, but basically when I did ssh -i ~/.ssh/id_rsa www#web1 'rm -Rf /home/www/system; ln -s /home/www/framework/system /home/www/system', it worked!!!
Related
I am trying to configure an user account using one cloud-init yaml file that include a call to write_files module, like this:
write_files:
#passwd file for vncserver
- path: /home/ubuntu/.vnc/passwd
owner: ubuntu:ubuntu
permissions: '0600'
defer: true
encoding: b64
content: bmtzZGN1eQo=
The file is created as expected, but the problem is that the parent directory is owned by root, and not by ubuntu user.
$ ls -la .vnc/
total 12
drwxr-xr-x 2 root root 4096 Dec 20 16:24 .
drwxr-x--- 5 ubuntu ubuntu 4096 Dec 20 16:24 ..
-rw------- 1 ubuntu ubuntu 8 Dec 20 16:24 passwd
I tried to manually create the /home/ubuntu/.vnc/ directory prior to create the passwd file to be able to set the ownership of the directory, just to find that documentation of write_files does not explain how to create (empty) directories.
I know that I could do this using runcmd module to insert a command like this:
runcmd:
- mkdir --mode 0600 --parents /home/ubuntu/.vnc
- echo bmtzZGN1eQo | base64 -d > /home/ubuntu/.vnc/passwd
- chmod 0600 /home/ubuntu/.vnc/passwd
but this seems to be too complex to do such small task.
It is possible to use write_files module to create directories or change ownership/permission of existing directories?
On my system, /home and /etc have exactly the same permissions:
$ ls -ld /home /etc
drwxr-xr-x 67 root root 4096 Nov 13 15:59 /etc
drwxr-xr-x 3 root root 4096 Oct 18 13:45 /home
However, Postgres can read one, but not the other:
test=# select count(*) from (select pg_ls_dir('/etc')) a;
count
-------
149
(1 row)
test=# select count(*) from (select pg_ls_dir('/home')) a;
ERROR: could not open directory "/home": Permission denied
Even though the user the DB is running as can, in fact, run ls /home:
$ sudo -u postgres ls /home > /dev/null && echo "ls succeeded"
ls succeeded
What is going on?
My postgres version is 11.5, running on Arch Linux.
I figured it out, it is because Arch's bundled postgresql.service file set ProtectHome=true, causing systemd to use Linux mount namespaces to block the postgres processes from accessing /home.
I get this error when I try to use yum,
http://iredmail.org/yum/rpms/6/repodata/repomd.xml: [Errno 14] problem making ssl connection
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: iRedMail. Please verify its path and try again
I tried the below but the error persists.
yum clean all
rm /var/lib/rpm/__db*
rpm --rebuilddb
yum update
Please let me know how to fix this, appreciate your help.
Create repo.disabled inside /etc/yum.repos.d
[root#centos ~]# mkdir /etc/yum.repos.d/repo.disabled
[root#centos ~]# ls /etc/yum.repos.d/
centos.repo centos.repo centos-updates.repo centos-updates-testing.repo
repo.disabled
Then move all these 3 repo files into repo.disabled folder :
[root#centos ~]# mv /etc/yum.repos.d/centos.repo/etc/yum.repos.d/repo.disabled
[root#centos ~]# mv /etc/yum.repos.d/centos-updates.repo/etc/yum.repos.d/repo.disabled
[root#centos ~]# mv /etc/yum.repos.d/centos-updates-testing.repo/etc/yum.repos.d/repo.disabled
List out the updated files and folders inside /etc/yum.repos.d :
[root#centos ~]# ls -l /etc/yum.repos.d/
total 8
-rw-r--r--. 1 root root 92 Aug 18 00:09 centos.repo
drwxr-xr-x. 2 root root 4096 Aug 18 11:27 repo.disabled
NOTE : Only file centos.repo and the folder repo.disabled should exist.
Now you gotta run yum clean all to clear the cache and everything should work just fine.
[root#centos ~]# yum clean all
I have root on the server in question.
OS: Solaris 10 sparc
When I ls the audit_old directory I get:
root#z10801 audit_old # ls
qm2_ora_24871_1c.aud.gz
ls -al results in:
root#z10801 audit_old # ls -al
total 250658
drwxr-x--- 2 oraqm2 dba 128261632 Mar 6 21:55 .
drwxr-x--- 17 oraqm2 dba 512 Mar 6 20:55 ..
rm gives me:
root#z10801 audit_old # rm qm2_ora_24871_1c.aud.gz
qm2_ora_24871_1c.aud.gz: No such file or directory
rm -rf the dir gives me:
root#z10801 rdbms # rm -rf audit_old/
rm: Unable to remove directory audit_old/: File exists
Any help would be great!
Thanks!
This behavior may be due to a file currently open by a separate process.
Even though you have removed it, the file is not truly removed by the OS until the process closes the file.
Try to find out the process that has the file open by using:
$ fuser .
In the directory which has the problem.
This command will print the process Id's which have files currently in use.
By following the official instructions http://www.mongodb.org/display/DOCS/Quickstart+Unix and this post http://blog.phy5ics.com/2010/03/27/installing-mongodb-on-mediatemple-dv/ I've just about managed to get mongodb installed on MediaTemples DV 4.0 server (I think).
I am however having problems installing the PHP driver http://www.mongodb.org/display/DOCS/PHP+Language+Center
In SSH I get this:
[root#xxx]# cd /var/tmp
[root#xxx]# pecl install mongo
downloading mongo-1.1.4.tgz ...
Starting to download mongo-1.1.4.tgz (68,924 bytes)
.................done: 68,924 bytes
18 source files, building
running: phpize
Configuring for:
PHP Api Version: 20090626
Zend Module Api No: 20090626
Zend Extension Api No: 220090626
/usr/bin/phpize: /var/tmp/mongo/build/shtool: /bin/sh: bad interpreter: Permission denied
Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF environment variable. Then, rerun this script.
ERROR: `phpize' failed
I am logged in as the root user - I don't understand why it's failing and what steps I need to take to install the PHP driver?
Thanks
Run the following commands on your server's command line:
$ mkdir /root/tmp
$ mount --bind /root/tmp /tmp
$ umount /tmp; umount /var/tmp
$ pecl install mongo
A few things:
/root/tmp is just an arbitrary temp directory. You can use whatever you want, provided it exists.
Some instructions say to use --host instead of --bind. On RHEL/CentOS mount says --host is an unrecognized option.
If you're on a VM, it's likely that you'll have to do this each time you restart your VM/Container.
For Media Temple customers, I can confirm that this works on both (dv) and (ve) servers with CentOS 5 and 6.
From media temple support: Need to create a temporary directory (/root/tmpz):
$ mkdir /root/tmpz
$ mount --host /root/tmpz /tmp
$ umount /tmp; umount /var/tmp
$ pecl install mongo
Build complete.
Don't forget to run 'make test'.
running: make INSTALL_ROOT="/var/tmp/pear-build-root/install-mongo-1.1.4" install
Installing shared extensions: /var/tmp/pear-build-root/install-mongo-1.1.4/usr/lib64/php /modules/
running: find "/var/tmp/pear-build-root/install-mongo-1.1.4" | xargs ls -dils
69094140 4 drwxr-xr-x 3 root root 4096 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4
69275176 4 drwxr-xr-x 3 root root 4096 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4/usr
69275177 4 drwxr-xr-x 3 root root 4096 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4/usr/lib64
69290445 4 drwxr-xr-x 3 root root 4096 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4/usr/lib64/php
69290447 4 drwxr-xr-x 2 root root 4096 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4/usr/lib64/php/modules
69290448 676 -rwxr-xr-x 1 root root 684126 Feb 22 13:40 /var/tmp/pear-build-root/install-mongo-1.1.4/usr/lib64/php/modules/mongo.so
Build process completed successfully
Installing '/usr/lib64/php/modules/mongo.so'
install ok: channel://pecl.php.net/mongo-1.1.4
configuration option "php_ini" is not set to php.ini location
You should add "extension=mongo.so" to php.ini
Do you have php-dev installed? phpize is basically "compiling" the MongoDB driver, but unless you have the -dev installed, this may not work.