General :: How To Send A Large File Securely
Aug 28, 2011
I need to send large files from a Linux machine to another using cryptography. The sender machine knows the recipient IP but not vice-versa. I don't need strong cryptography and prefer higher-speed less-secure solutions.
There are no problems with presharing crypto keys but I'd prefer not dealing with SSH users creation.
I think to HTTP PUT over TLS, but I never had experience with it and I prefer to hear which are the possible solutions. I know that it can listen as a daemon but I don't know anything about cryptography. So pipeing with OpenSSL may be a solution.
View 2 Replies
ADVERTISEMENT
Mar 10, 2010
I am looking for good free software to send large files to a friend. I have tried Skype, but it was too slow, so I am looking for something that basically only uses the two PCs, some software, and no third party or server. We can figure out our IPs, if that would be a step to eliminating a 3rd party or service.
I have searched the internet for terms like P2P, private P2P, F2F, SFTP, etc., and I'm just more confused! What's free and rocks? It's not for music or multiple users, just for 2 users and big documents.
Software Requirements:
* Secure
* Free or open source
* Both Linux (for me) and Windows versions (for my friend)
* Good GUI, easy to use (no command line)
View 14 Replies
View Related
Jan 15, 2009
I'd like to find a way to mount a windows file share securely (encrypted) as I'll be communicating over the Internet.
View 4 Replies
View Related
Aug 6, 2010
How can you use swat securely from a securely location?
View 1 Replies
View Related
Jan 20, 2011
in the middle of script, i need to send the output of (send command on line 8) to a file
#!/usr/bin/expect
spawn telnet 172.20.64.133
expect "ENTER USERNAM <"
[cod]....
i treid the below on line 8 :
1- send "show command;
" > logfile.txt : gives an error extra character after the "
2- logsave logfile.txt 'send "show command;
" ': error invalid command
3- i simply tried to send the output of the whole script to file logsave /home/logfile ./script : seems that logsave work under root only
4- ./script > logfile : the problem with this is that the output of echo or (read "enter your id") command will not be displayed on the screen (actually nothing will be displayed, i have to open the log file to see the output). is there any way to save the log of the "send" ? or to save the log of the complete script without hiding the output on the screen?
View 2 Replies
View Related
May 12, 2010
I am using RHEL 5.I have a very large test file which cannot be opened in vi.The content of the file has some 8000 lines.I need to view ten lines between 5680 to 5690.How can i view these particular lines in a large file.what is command and option i need to use.
View 1 Replies
View Related
Jan 4, 2011
This one being Ubuntu 9.10 (yes, I know I really should upgrade). I keep a number of confidential files in a TrueCrypt container which is a standalone file in my Documents folder. I'd like to delete some of these, but I want to do it as securely as I can, but I believe if I simply hit 'Delete' with the file selected it'll move the file to the Deleted Items folder. This, I assume, means that the file is taken out of the encrypted volume and stored unencrypted in the Deleted folder.
I've been reading a little about the Shred command, and there seems to be some question about whether it works effectively with a journalled file system; and since I have no idea whether I'm using a journalled file system, or how to find out, I'm treating Shred and other over-writing secure deletion tools as ineffective for now.
With this in mind, can anyone advise me how I can protect the file stored in the TrueCrypt volume, and delete it in place, without taking it out of the encrypted area? And, further to that, can anyone tell me whether in fact the file is actually secured while it's in the encrypted volume? For all I know, just opening the volume may result in copies being made somewhere (apart from RAM).
View 5 Replies
View Related
Feb 2, 2009
I am looking for an API in JAVA which gives me functionality to copy a file to remote host in secure manner like (SCP).
View 1 Replies
View Related
Jan 18, 2011
I have a 58 mg PDF that needs to be sent to a person with Windows. I do not know what special software they have. I only know that I nust send them the file in a way that they can use it. I tried yousendit.com and it tells me I need to install their "yousendit express package". But apperantly it will not run on Linux.
View 9 Replies
View Related
Aug 24, 2011
I want to transfer a huge file (60GB) over the NFS network on linux. Is cp the best option?
View 1 Replies
View Related
Mar 26, 2010
I'm trying to copy a 6Gb file across from my laptop to an external usb drive but it quits at about 4.2Gb every time with a "file size limit exceeded" error. i have checked the output of ulimit -a and there is no limit there on the file size. I'm using the Slax live Cd for this as it always gets the job done
View 8 Replies
View Related
Feb 9, 2011
create a large buffer in my program so that I can send, and then receive on another pc, more than 4096 bytes (this seems to be the default for the serial port). I thought this might work:
[code]...
View 9 Replies
View Related
Jul 28, 2011
I have a large number of log files, on a linux box, I need to cleanse sensitive data from before sending to a third party. I have used the below script on previous occasions to perform this task, and it has worked brilliantly (script was built with some help from here :-)
#!/bin/bash
help_text () {
cat <<EOF
Usage: $0 [log_directory] [client_name(s)]
EOF
[Code]...
However, now one of our departments has sent me a CLIENT_FILE.txt with 425000+ variables! I think I may have hit some internal limit. I have tried splitting the client file into 4 with around 100000 variables in each, this still doesn't work. I'm loathe to keep splitting though as I have 20 directories with up to 190 files in each directory to run through. The more client files I make, the more passes I have to do.
View 2 Replies
View Related
Aug 18, 2011
I'm looking for a way to compress a large file (~10GB) into several files that wont exceed 150MB each.
Any thoughts?
View 2 Replies
View Related
Sep 15, 2010
Is there a clever way to monitor the progress (as percentage or hash) of copying a large file (using pv could be an option)?Like monitoring the progress of a copy command such as this:Code:cp linux.iso /tmp/
View 2 Replies
View Related
Nov 2, 2009
I work for a school consulting company.We helped a school deploy about 1500 computers.The computers have windows XP but we have been using G4L for the restore partition on the drives.So far the software works great. We did however run into a problem in that many of the computers we deployed are missing the restore partition. The reason they are missing is long and convoluted and not really that important. What I have been charged to do is try and fix the restore partition problem. One solution that I had, which im not even sure if it will work, was to backup the recovery file, that g4l created, to DVD and write a basic script to recreate the partition and then copy the file over. This process would need to be as automated as possible since this disc will be inserted by the end user(the students). The backup file that g4l created is 5.9GB so it wont fit on just one disc and Dual layer discs are too expensive to use for this project, so the file will either need to be compressed again (not sure if that's a good idea or not) or split across two DVD's.
I have searched the forums here and I was not able to find anything to fix this problem. I was able to find some info on splitting files across two discs but im not sure how to use that to fix my problem.
View 5 Replies
View Related
Aug 6, 2009
After untaring a mysql file (very large) I'm trying to find where the file listed below has gone. I did a search on the file name:
fine / -name 'mysql-qui-tools-5.0' -print
But can't find the file.
-rwxr-xr-x root/root 9651820 2007-05-02 11:46:01 mysql-gui-tools-5.0/mysql-query-browser-bin
View 6 Replies
View Related
Jul 24, 2010
I am new to shell scripting.What i am trying is to write a shell script which take the input file and output should like as mentioned below.Output file should have data till SOK (marked in red)from every second line and then the selected data(marked in green) from 4th line.So selected data from 2nd and 4th line in one line of O/P file and then similarly selected data from 6th and 8th line in second line of O/P file.Input File:
3c3
< c1111;11.11.11.11;pOK;SOK:abcde;Universe:aa
---
[code]...
View 14 Replies
View Related
Dec 20, 2009
i have a car stereo that reads a USB drive with all my music on it, however to sort through the music it uses a method of finding folders containing music, then displaying them all in a list. i find this interface annoying because in order to sort the music by artist i have to go and manually move it out of the album folders by hand, this takes a long time for 11+ GB of music so i was trying to use the linux CLI to quicken the process. use a command like this
Code:
mv /media/usb/music/*/*/* /media/usb/music/*/
but for some reason this moves all my music into the last folder alphabetically in my drive, the music is all pre-arranged like this /media/usb/music/artist/album/song
View 5 Replies
View Related
Apr 16, 2011
I am removing some old graphics from my server and one of the gallery programs have created two enormous directories that I cannot even open with FTP.
I tried to tar each directory and the first came out to about 37gb and the second keeps failing (its bigger one would assume).
How can I archive and split these into smaller files?
View 13 Replies
View Related
May 6, 2010
Every once in a while on a computer I'm ssh'd into, I will accidentally type "cat largefile.txt" and my screen will start rushing with text for the next 10 minutes. I'm always working in a screen session, so my current solution is to just log out and then log back in, and since it can go 100X faster when I'm logged out, it'll finish in the short time it takes me to type my password in again. Is there a better way? Either involving the fact I'm in a screen session? Or a way to do this within SSH? What doesn't work: detaching from the screen session (doesn't respond until file is done outputting) trying command to move to a different window in the screen session (also doesn't respond) typing ctrl+C to kill cat command (also doesn't respond, probably because the command is done and the buffers just have to catch up).
View 3 Replies
View Related
Mar 22, 2010
I have installed centos 5 and can print small to medium lpr files using cups fine (1 to 20 pages), but when i tried to print a file of 95 pages the printer just stops, I have to power off the printer and turn it back on and it will start printing again. It looks like some data is lost in this process. It may print 20 pages and stop. When restarted it may print 20 or 40 or complete the report.I can print to the devicectly and it works fine. It is only when the large print jobs are run through the spooler.I have tried on different printers and the same results, that's what makes me think it is a spooler problem.
View 2 Replies
View Related
Sep 28, 2009
I have on my windows machine several hundred files that are a format of .nc .ncs for a CNC machine. I need to convert them to txt which is something as easy as opening in notepad and then saving as .txt but there are so many that this kind of action would take way too long.
The reason I am writing the linuxquestions is because I would feel more comfortable in loading a live CD and using some sort of terminal command to do this than I would to download one of the many "freeware" type programs I have found for windows (even more so since I have had a root kit before and had to start all the way over to get rid of it).
I need to know:
1. Is this possible to do with the terminal without super advanced knowledge.
2. Can one please point me in the right direction; something to read or an example
View 2 Replies
View Related
Nov 26, 2010
I'm trying to manipulate a large text file full of records (metadata - one complete record per line). I need to delete every line on which certain words appear - there are five different words, all pretty simple all-caps strings with occasional whitespace. I tried using grep -v, which worked a treat, but only string-by-string. Ideally I'd like to run this as grep -v -f, where the file targeted by the -f contains the strings I need to match in order to delete the lines they're in.
i.e. grep -v -f filecontainingSTRINGS.txt targetfile.txt > outputfile.txt
When I try this, however, I don't get any matches - or more specifically, no changes are made in the output file. It works fine if there's only one string in filecontainingSTRINGS, but it doesn't work if there's more than one (I'm using newline as the delimiter). (Also my machine doesn't recognise /usr/xpg4/bin/grep - no idea what that's all about!)
View 5 Replies
View Related
Jul 13, 2011
I need to remove a large binary file(PDF file) from a large log file which is generated daily.This is seriously hogging space on our servers.I need to remove the large PDF from the logs to make the logs smaller and manageable
I need to take out the texts (or binary file) between the strings
<my:PDF> and </my:PDF>
<applicationForm> and </applicationForm>
<image> and </image>
<extractedSignature> and </extractedSignature>
I am not sure whether sed utility can do this, these are large files and need to be pruned .I am not seeking logrotation advice just a script or command that can strip these large logs of texts between the characters above . I am not sure how to do this.These files are rather large.I am not sure how to achieve this with sed , tail, head , tr or any other facility .
View 2 Replies
View Related
May 17, 2011
How does one split a large linux file and transfer to windows external drive ?
View 2 Replies
View Related
Jan 17, 2011
I need to fgrep a list of things which are in a file. The file in which I will do the SEACHING is a large text file and I need fgrep to output each item from the list as a file with the item from the list as the file name.
Its kinda like this:
./script list.txt largefile.txt
output would be
jack.txt
screen.txt
blah.txt
View 14 Replies
View Related
Jan 25, 2011
How to patch redhat and debian securely ? I mean is there sth like in solaris live upgrade, when after upgrade sth goes wrong I can revert to previous state from before upgrade?
View 4 Replies
View Related
Jul 30, 2010
Can't I forward a program window from my laptop to my desktop securely, both running Linux?How to ssh -X an existing window program just like the 'screen' program does?This question came up with my friends when watching an episode of 24! "Almeida send me your screen"
View 1 Replies
View Related
Jan 29, 2010
I am currently using this command
Code:
apt-get install samba --force-yes -y > /sambainstall.txt This suppresses the screen output and sends it all to a text file, how do I have both?
View 2 Replies
View Related
