Chapter 13

ARCHIVING AND TRANSFERRING FILES

ARCHIVING AND TRANSFERRING FILES

By default tar command is not storing extended attributes (SELinux permissions), to store them, you must use --xattr option.

# to archive files with extended attributes use --xattr option:
tar --xattr -cvf archive.tar file1 file2 file3
# -c for          : archive.tar
# -z or --gzip    : archive.tar.gz or archive.tgz
# -j or --bzip2   : archive.tar.bz2
# -J or -xz       : archive.tar.xz


# to list files in archive file use -t option:
tar -tf archive.tar

# to extract tar file use -x option:
tar -xvf archive.tar

TRANSFERRING FILES BETWEEN SYSTEMS SECURELY

remote system to local system:

scp -r username@remotehost:/remote/directory/path localFolder

local system to remote system:

scp -r localFolder username@remotehost:/remote/directory/path

TRANSFERRING FILES USING THE SECURE FILE TRANSFER PROGRAM

sftp remoteuser@remotehost
mkdir remoteFolder
cd remoteFolder
put /etc/hosts    # upload hosts file to remote
get /etc/yum.conf # download yum.conf from remote
exit

SYNCHRONIZING FILES BETWEEN SYSTEMS SECURELY

rsync -av root@serverb:/var/log ~/serverlogs

# it can also be used for syncronizing local directories:
rsync -av /var/log /tmp

-v, --verbose
-A	to preserve ACLs
-X	to preserve SELinux contexts
-a, --archive	APPLIES ALL OPTIONS DOWN BELOW:
-r, --recursive	synchronize recursively the whole directory tree
-l, --links	synchronize symbolic links
-p, --perms	preserve permissions
-t, --times	preserve time stamps
-g, --group	preserve group ownership
-o, --owner	preserve the owner of the files