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Posted by jpluimers on 2016/11/14
Boy I wish I had known about screen and tmux years ago. Screen is such a generic term that I never bumped into it, but tmux is easier to find and I like it more. When on the road, I regularly loose SSH sessions, so I’ve been starting tmux ever since I discovered it and reattach to it whenever needed thereby getting the same exact she’ll I was connected to.
http://unix.stackexchange.com/q/598/69111
–jeroen
Posted in *nix, *nix-tools, Communications Development, Development, Linux, openSuSE, Power User, SSH, SuSE Linux, TCP | Leave a Comment »
Posted by jpluimers on 2016/11/01
At first I thought Comcast was a really good joke by Kristian Köhntopp, but it is actually a really cool open source tool with an appropriate name:
Comcast is a tool designed to simulate common network problems like latency, bandwidth restrictions, and dropped/reordered/corrupted packets.
It is written in go and works on BDS and derivatives (including Mac OS X). It could probably made to work on Windows too.
The source is on Github: tylertreat/comcast
–jeroen
via: »Comcast is a tool designed to simulate common network problems like latency,…
Posted in Communications Development, Development, Internet protocol suite, Network-and-equipment, Software Development, TCP | Leave a Comment »
Posted by jpluimers on 2016/10/25
I’m using Linux (centos) machine, I already connected to the other system using ssh. Now my question is how can I copy files from one system to another system?
Source: How to copy files from one machine to another using ssh – Unix & Linux Stack Exchange
Nice question, uh? In my opinion the best answer is “Use scp to avoid going through hoops with complex configurations to re-use your existing ssh connection” like this:
To copy a file from
BtoAwhile logged intoB:scp /path/to/file username@A:/path/to/destinationTo copy a file from
BtoAwhile logged intoA:scp username@B:/path/to/file /path/to/destinationSource: DopeGhoti answering How to copy files from one machine to another using ssh – Unix & Linux Stack Exchange
Instead the question is marked duplicate of SSH easily copy file to local system – Unix & Linux Stack Exchange where (contrary to the ‘easily’ part of the question) go through hoops and loops with all kinds of fancy ssh settings and port forwards.
For recursive, use the -r option, as per [WayBack] shell – How to copy a folder from remote to local using scp? – Stack Overflow:
scp -r user@your.server.example.com:/path/to/foo /home/user/Desktop/From
man scp(See online manual)
-r Recursively copy entire directories
Related:
Posted in *nix, *nix-tools, bash, Communications Development, Development, Internet protocol suite, Power User, Scripting, Software Development, SSH, TCP | Leave a Comment »
Posted by jpluimers on 2016/10/21
Not sure why yet, but on a gigabit network between a Windows 2008 R2 Server and a Proxmox KVM machine, WinSCP gets around 10 megabit/second and FileZilla > 30 megabit/second.
Others seem to agree that filezilla faster than winscp.
–jeroen
Posted in Communications Development, Development, Internet protocol suite, Power User, Proxmox, SSH, TCP, Virtualization, VMware, Windows, Windows Server 2008, Windows Server 2008 R2 | 1 Comment »
Posted by jpluimers on 2016/10/13
As I will likely have to secure some external FTP sessions soon and the endpoints the current FTP connects to are vague in what they support:
Here is the difference:
- SFTP (SSH file transfer protocol) is a protocol that provides file transfer and manipulation capabilities. It can work over any reliable data stream, but is typically used with SSH
- “FTP over SSH” uses the regular old FTP protocol, but an SSH tunnel is placed between client and server.
…
- FTP over SSL (FTPS), which is supported by .NET. (See http://msdn.microsoft.com/en-us/library/system.net.ftpwebrequest.enablessl.aspx.)
Source: Kristopher Johnson answering in c# – Differences between SFTP and “FTP over SSH” – Stack Overflow
–jeroen
Posted in Communications Development, Development, Internet protocol suite, Software Development, SSH, TCP, TLS | Leave a Comment »
Posted by jpluimers on 2016/10/13
Thanks Ilya Grigorik for sharing this a long while ago:
TCP and the lower bound of web performance… is a must watch talk on plumbing, history, and people behind TCP. Awesome.
–jeroen
via: TCP and the lower bound of web performance… is a must watch talk on plumbing,….
Posted in Communications Development, Development, Internet protocol suite, Power User, TCP | Leave a Comment »
Posted by jpluimers on 2016/09/19
For my own link history: Debugging a server configuration
Source: OpenSSH/Logging and Troubleshooting – Wikibooks, open books for an open world
Posted in Communications Development, Development, Internet protocol suite, SSH, TCP | Leave a Comment »
Posted by jpluimers on 2016/08/09
Wonder if I can get this to work from macOS / OS X as a client:
texttop – A fully interactive X Linux desktop rendered in TTY and streamable over SSH
Source: tombh/texttop: A fully interactive X Linux desktop rendered in TTY and streamable over SSH
via: Kristian Köhntopp – Google+
Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, Linux, Power User, Software Development, SSH, TCP | Leave a Comment »
Posted by jpluimers on 2016/08/08
Attack from the ’90s resurfaces more deadly than before
Source: Windows Flaw Reveals Microsoft Account Passwords, VPN Credentials
TL;DR: block LAN->WAN port 445
Note this won’t affect web-dav shares like \live.sysinternals.com\DavWWWRoot as that uses ports 443 and 80.
–jeroen
via:
Posted in Communications Development, Development, https, Internet protocol suite, Microsoft Surface on Windows 7, NTLM, Power User, Security, SMB, TCP, WebDAV, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows 9, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Vista, Windows XP | Leave a Comment »
Posted by jpluimers on 2016/06/21
I’m using these Chrome Extensions for most of the http / https call mockups, and after that put them in SoapUI (which despite the name also does REST and has come a long way sinceSource: SoupUI – as sometimes that is the only thing that works):
You can get both Postman versions through GetPostman.com as well.
–jeroen
Posted in .NET, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, ASP.NET, C#, C# 3.0, C# 4.0, C# 5.0, Chrome, Communications Development, Development, Google, HTTP, Internet protocol suite, Power User, REST, Software Development, TCP | 1 Comment »
The Wiert Corner - irregular stream of stuff 