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Questions tagged [file-transfer]

312 questions
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How to speed up file copying onto a VMWare virtual server?

One of the sites I work at uses VMWare virtual servers. For the most part they work very well, but copying large files onto them from other places on the network is very slow. By large files I mean around 4GB in size (which isn't actually that big…
codeulike
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SCP hangs before File Transfer begins

I am trying to move a file from a virtual machine (Ubuntu 18.04) on my local system to a remote server using a very basic scp command. This issue is present only on one particular server, others work fine so it is not a generic thing. scp
ArunMKumar
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Server OS or PowerShell version differences that would affect copy speed?

I recently moved many, many files at 2 different locations. It was exactly the same set of data on each, using an identical robocopy command, but what took under 30 minutes on Windows Server 2012 R2 at our HQ (using PowerShell v4) took roughly 15…
SQL_Deadwood
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Rsync hangs when transfering large files on an bad connection

've been having problems transferring files over a pretty bad connection (I'm trying to upload a file on a cloud server) via rsync. The rsync essentially hangs after about a minute or so. This is the way I'm trying to perform the upload: rsync -avz…
Tudor Vintilescu
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ESXi 5.5, slow network speed when writing to guests

This is an issue that has been bugging me for a lot time with ESXi. I had the issue with my old Dell server (ESXi 5.0 and 5.5) and even with my new Dell T20 (ESXi 5.5). For the current issue at hand I will only focus on the new Dell T20 server, to…
Jueki
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Windows Server 2008 x64, Large File Transfers, and Memory Usage

I'm following up on this: Copying large file to remote server causes it to run out of physical memory But figured I'd post this separately. I have a 64-bit server, Xeon 5405, with 14GB memory, and a Areca 1680 SATA storage controller, that I use for…
Brian Spolarich
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Is it safe to rsync the same source to the same destination in parallel

My application use rsync to copy files from network driver to local as cache to improve performance. But since my application might be run in parallel, so as the rsync, and there could be a case that 2 instance of rsync being run in parallel against…
Baiyan Huang
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Fast, reliable data transfers from/to China

We are a small company and we will need to transfer rather large amounts of data (10GB+ each time) between Europe and China in the near future. As many may have experienced, Internet connections to or from China can be rather unreliable and slow at…
nils
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SSH file transfers hang after ~700KB

OVERVIEW I'm scripting SFTP file transfers on a Windows 7 box in the field. When I transfer zip files larger than a megabyte or so, the transfer (and SSH) stops unexpectedly after about 700KB. The SSH process seems to hang but it doesn't start…
Secure Shel
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When does the TCP engine decide to send an ACK?

In my LAN, I have a router that runs a Samba server and my PC connects to the router. I wiresharked during a uploading to the server and a downloading from the server. The wireshark results show that: During the uploading, the server sends an ACK…
sliter
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Openssh sftp-server: .filepart support?

I am trying to setup a SFTP server, running off Ubuntu Server 11.04. I installed openssh-server to provide SSH access. What I am trying to do is make file uploads run with a suffix (.filepart or whatever), which would be removed upon transfer…
The Mighty Rubber Duck
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What is the difference between the download pause-able and un-pause-able files?

Technically, what is the difference between the way of hosting (on the server) of a file that can be paused while downloading and resumed again, and a file that needs to be downloaded in one go?
Lazer
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Faster, secure, protocol/code required for long-distance transfer

I've ran into a problem and I'm looking for a new secure protocol/client/server that's faster over a 1Gb/s fibre link - let me tell you the story... I have a pair of redundant, diversely-routed, 1Gb/s links over a distance of around 250 miles or…
Chopper3
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Alternatives to Kermit for transferring HD contents via a serial cable Win3.1 -> Vista

I'm trying to transfer the contents of some VERY old laptops which have Windows 3.1 on them. The only way I can manage this is via a serial cable (no network on the laptops). I've got Kermit on the W3.1 end but it is playing up and won't run nicely,…
Ryan ONeill
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Webapp for secure file delivery to customers?

Situation: For each customer, I have a script that generates some customized configuration files for their installation (host addresses, options, organization names, etc.) I need to get these to the customers, but I can't just e-mail them, since I…
andersop
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