Post tagged: remote

RDP vs VNC

For years I have been using VNC for my remote desktop needs. This works usually well enough. The features that I like are: Basic set-up is easy Desktop sessions are persistent Can be used to view an actual X11.org desktop. ...

flatpak

Flatpak is a utility for software deployment and package management for Linux. It is advertised as offering a sandbox environment in which users can run application software in isolation from the rest of the system. Flatpak was developed as part of the freedesktop.org project and was originally called xdg-app. Snap vs Flatpak ...

Stupid SSL tricks

Some hints and tips foor doing SSL related things: Netcat for SSL This command lets you connect to a SSL server (a-la netcat): cat request.txt | openssl s_client -connect server:443 Creating self-signed certificates This is a single command to generate a self-signed certificate: ...

Ad-Hoc rsync daemons

The other day I needed to copy a bunch of files between to servers in my home network. Because of the volume I wanted to copy the files without having to go through ssh's encryption overhead. So I figured I could use netcat for the data transport. To do that I wrote these short scripts. Remote scripts ...

using cachefiles on an Linux NFS share

If you often mount and access a remote NFS share on your system, you will probably want to know how to improve NFS file access performance. One possibility is using file caching. In Linux, there is a caching filesystem called FS-Cache which enables file caching for network file systems such as NFS. FS-Cache is built into the Linux kernel 2.6.30 and higher. ...

Securing rsync on ssh

Reference: positon.org You have 2 systems and you want to set up a secure backup with rsync + SSH of one system to the other. Very simply, you can use: backup.example.com# rsync -avz --numeric-ids --delete [email protected]:/path/ /backup/myserver/ To do the backup, you have to be root on the remote server, because some files are only root readable. Problem: you will allow backup.example.com to do anything on myserver.example.com, where just read only access on the directory is sufficient. ...

Windows administration from the command line

Windows system administration is very mouse driven and to reach all tools you need to browse through Windows explorer. If you are like me and prefer to log on a limited privilege account and use Runas to perform admin tasks, you can open these consoles with the .msc file names. Here is a list of admin tools with their .msc file names. domain.msc: AD Domains and Trusts ...

Enable local file caching for NFS share on Linux

In Linux, there is a caching filesystem called FS-Cache which enables file caching for network file systems such as NFS. FS-Cache is built into the Linux kernel 2.6.30 and higher. In order for FS-Cache to operate, it needs cache back-end which provides actual storage for caching. One such cache back-end is cachefiles. Therefore, once you set up cachefiles, it will automatically enable file caching for NFS shares. ...

Driving Continuous Integration from Git

Testing, code coverage, style enforcement are all check-in and merge requirements that can be automated and driven from Git. If you're among the rising number of Git users out there, you're in luck: You can automate pieces of your development workflow with Git hooks. Hooks are a native Git mechanism for firing off custom scripts before or after certain operations such as commit, merge, applypatch, ...

Yealink W52P

Yealink W52P So I was looking to replace my analog cordless phones mainly because I wanted to have a centralized way to maintain phonebooks. Right now I have two cordless phone that I have to manually enter phonebook entries on the two handsets independently. Initially I was thinking of getting small/cheap Android tablet and load it with a SIP soft phone. Trying with a couple of tablets I had was not very successful. On one hand my network topology did not work very well, on the other hand, the integration of the SIP soft phone with the directory and the other phone functions did not work as well as I expected. So when I came across the W52P, I was initially attracted to the low price. Grandstream had a cheaper phone, but it did not have remote phonebooks. After checking the documentation of the W52P, I confirmed that it did have a remote phonebook functionality. So bought it and tried it out. As a phone itself, it is about the same as the analog phones that it was replacing. The voice quality was pretty good. ...

Grandstream GXP1400

Grandstream GXP1400 The other day I replaced an analog phone with a Grandstream GXP1400 IP phone. I think it is a great value phone. It is one of the cheapest I could find yet supports all the features I was looking. Specifically I wanted a IP phone that could: Have a remote phone directory ...

SSH Tricks

A bunch of stupid SSH tricks that can be useful somehow, somewhere... Forcing either IPv4 or IPv6 This is for the scenario that you know which specific protocol works to reach a particular host. Usually good to eliminate the delay for SSH to figure out to switch IP protocols. For IPv4: ssh -4 [email protected] ...

Remote VirtualBox

RemoteBox is a Remote VirtualBox UI. It is similar phpVirtualBox in that allows to manage VirtualBox remotely (on a potentially headless server). They differ in their requirements: RemoteBox does not require much on the server, but you need to install it on the client. phpVirtualBox only requires a browser and rdp viewer on the client, but requires a web server with PHP support on the server. ...

Remote Bridging

Sometimes we need to connect two or more geographically distrubuted ethernet networks to one broadcast domain. There can be two different office networks of some company which uses smb protocol partially based on broadcast network messages. Another example of such situation is computer cafes: a couple of computer cafes can provide to users more convinient environment forr playing multiplayer computer games without dedicated servers. Both sample networks in this article need to have one *nix server for bridging. Our networks can be connected by any possible hardware that provides IP connection between them. Connecting Two Remote Local Networks With Transparent Bridging Technique Short description In described configuration we are connecting two remote LANs to make them appearing as one network with 192.168.1.0/24 address space (however physically, presense of bridges in network configuration is not affecting IP protocol and is fully transparent for it, so you can freely select any address space). Both of the bridging servers has two network interfaces: one (as eth0 in our example) connested to the LAN, and second (eth1) is being used as transport to connect networks. When ethernet tunnel between gateways in both networks will be bringed up we will connect tunnel interfaces with appropriate LAN interfaces with bridge interfaces. Schematically this configuration can be following: +-------+ +-------+ | br0 | | br0 | ...