I've been trying to setup my SunBlade as an SSH server. I configured the sshd_config file, but I cannot get the keys to exchange properly. I generate a key pair in Putty on my laptop (the host, running Win2K), exported the Private key as OpenSSH and then copied the public key to the a file I... (3 Replies)
Hi,
I have automated logins to Unix boxes with Ssh - Putty combination.
Have created a Pub - Pvt key combination for the same.
Added the entry of username in "User name" box of Putty.
This works perfectly for the specified user.
I want this to happen now for another user as well, without... (0 Replies)
HI,
My file contains data something like
034500,5,B5004946544EB185,DEFAULT,0
Now i want to do a pettern match for DEFAULT and remove that particular line from file and transfer the rest contents to temp file.But my req is i want to do case insensitive matching ie DEFAULT / default.
I... (4 Replies)
Hi everyone
When I'm starting my script I'm giving to it two parameters:
script.sh ext1 ext2
I need to copy all files in a directory fitting ext1, to the same folder, with the same names, but with the changed extension to ext2.
Till now I've just managed to do it for only 1 file, but I... (16 Replies)
hi all,
I need to write one script to copy multiple imp files
like
/etc/passwd
/etc/group
/etc/shadow
/etc/printers.conf
from system A, System B and system C to system Z
and I need to execute this script on System Z.
like if system is equal A copy 1 2 3 files to system Z into... (9 Replies)
I'm a teacher who teaching computer programming languages.
Generally, I give each student a username in a Linux Server. Then each student use his username to login the Server and program their programming task by putty or secureCRT and so on.
But one fact had bothered me for a long... (9 Replies)
Hi,
I have a requirement to copy files from one server to other using SCP.
I am using * to copy files as I just need to pick up the files that are ending with .OK. But few ok files are in upper case and few are in lower case. If I am using below code, only files with upper case OK are being... (1 Reply)
Hello
How do i copy files matching multiple conditions. Requirement is to search files starting with name abc* and def* and created on a particular date or date range given by the user and copy it to the destination folder.
i tried with different commands.
below one will give the list ,... (5 Replies)
The bash executes but returns no results and the set -xv showed while the $run variable in blue, was extracted correctly, the $match value in green, was not, rather both values in home/cmccabe/Desktop/f1 were extracted not just the matching.
There will always be an exact match from the $run to... (7 Replies)
Discussion started by: cmccabe
7 Replies
LEARN ABOUT DEBIAN
s3qllock
S3QLLOCK(1) S3QL S3QLLOCK(1)NAME
s3qllock - Make trees on an S3QL file system immutable
SYNOPSIS
s3qllock [options] <directory>
DESCRIPTION
S3QL is a file system for online data storage. Before using S3QL, make sure to consult the full documentation (rather than just the man
pages which only briefly document the available userspace commands).
The s3qllock command makes a directory tree in an S3QL file system immutable. Immutable trees can no longer be changed in any way whatso-
ever. You can not add new files or directories and you can not change or delete existing files and directories. The only way to get rid of
an immutable tree is to use the s3qlrm command.
s3qllock can only be called by the user that mounted the file system and (if the file system was mounted with --allow-other or
--allow-root) the root user. This limitation might be removed in the future (see issue 155).
RATIONALE
Immutability is a feature designed for backups. Traditionally, backups have been made on external tape drives. Once a backup was made, the
tape drive was removed and locked somewhere in a shelf. This has the great advantage that the contents of the backup are now permanently
fixed. Nothing (short of physical destruction) can change or delete files in the backup.
In contrast, when backing up into an online storage system like S3QL, all backups are available every time the file system is mounted.
Nothing prevents a file in an old backup from being changed again later on. In the worst case, this may make your entire backup system
worthless. Imagine that your system gets infected by a nasty virus that simply deletes all files it can find -- if the virus is active
while the backup file system is mounted, the virus will destroy all your old backups as well!
Even if the possibility of a malicious virus or trojan horse is excluded, being able to change a backup after it has been made is generally
not a good idea. A common S3QL use case is to keep the file system mounted at all times and periodically create backups with rsync -a. This
allows every user to recover her files from a backup without having to call the system administrator. However, this also allows every user
to accidentally change or delete files in one of the old backups.
Making a backup immutable protects you against all these problems. Unless you happen to run into a virus that was specifically programmed
to attack S3QL file systems, backups can be neither deleted nor changed after they have been made immutable.
OPTIONS
The s3qllock command accepts the following options:
--debug
activate debugging output
--quiet
be really quiet
--version
just print program version and exit
EXIT STATUS
s3qllock returns exit code 0 if the operation succeeded and 1 if some error occurred.
SEE ALSO
The S3QL homepage is at http://code.google.com/p/s3ql/.
The full S3QL documentation should also be installed somewhere on your system, common locations are /usr/share/doc/s3ql or
/usr/local/doc/s3ql.
COPYRIGHT
2008-2011, Nikolaus Rath
1.11.1 August 27, 2014 S3QLLOCK(1)