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1answer
27 views

TCP server listen and client listen windows software

I am using Windows OS on an amazon cloud AWS with static public IP. On this machine I need to set up a TCP server to listen on port 2204 for raw data that will arrive from a GPS base station over TCP ...
0
votes
1answer
85 views

Server 2008 VPN isn't working, DHCP coming from a different source

Alright, I have a Windows 2008 server running. It serves up DNS but not DHCP. I want to have VPN running on it, and my understanding is that you can do this as long as you set the DHCP relay server ...
0
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0answers
20 views

How do I set “relay_hosts_only” setting using sendmail / m4

We're using CentOS and sendmail's m4 configuration. How do I set domains where emails should be delivered? I only want two domains, and would like email to all other domains blocked. I tried this ...
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0answers
70 views

Duplicate and relay mail from postfix

We currently use Google Mail for our teams email. We want to move to a self-hosted email server. Some of our team members prefer using Google Mails interface and asked if we could continue having ...
0
votes
0answers
41 views

MacPro1,1 won't turn off USB ports when going into sleep mode

I want all (or specific) ports to go off, when MacPro1,1 goes to sleep (mode 0) I connected all the external peripherals (220V) via extension cord to a relay switch, powered by the computer's molex ...
0
votes
1answer
635 views

Can't send email to the internet from Postfix mail server. (Relay access denied)

I have a mail server running Postfix in my LAN with which I can send and receive emails in my LAN and send from the WAN to the LAN. I can't send from the LAN to the WAN though. I am trying to use my ...
0
votes
1answer
36 views

Postfix Relay Based on Recepient

What is the best practice when one has to implement this sort of ruleset in postfix: Email sent to a@example.com, b@example.com, etc ought to be relayed to smtp.a.example.com. Email sent to everyone ...
0
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0answers
98 views

Sendmail local domain relay

Sendmail on webserver.mydomain.com is sending all emails properly except email addressed to anyone@mydomain.com. mydomain.com's mail is not handled locally and mx records are configured to point to ...
1
vote
3answers
562 views

Disconnecting a USB device without unplugging it

I'm modifying my desktop computer case and I want to plug everything into the USB ports in the back of it. However, the ports are not easy to reach and sometimes I have to unplug some devices because ...
0
votes
1answer
81 views

usb receive message when relay is triggered?

is there a device that, say when a device like a dryer motor turns on, it triggers a relay. the relay trip is measured by a usb device of some sort, then a message is displayed in a program? i'm not ...
1
vote
2answers
140 views

Does Tor need more Relay node or Exit nodes? [closed]

If I have free bandwidth, am I better off sharing as a relay node or exit node? Trying to help the Tor network
0
votes
1answer
56 views

tor relay - how to display remaining bandwith quota?

I have a noobish question. I am experimenting with tor and would like to offer a relay service without exit node. My relay goes into hibernation surprisingly fast (inspite of setting AccountingMax ...
1
vote
1answer
418 views

Gmail relay will not email account on its own domain (google apps)

I am running sendmail on Ubuntu. I've configured it all as normal to relay email via my Google apps server. I have another account on a ubuntu VM that works just fine and it can email itself etc. I ...
3
votes
1answer
122 views

Is there such a thing as a USB-controllable USB relay?

I am looking for a device that connects to two USB ports on a computer: a "Control" port, and a "Data" port. Both cords go to the same device, which also has one USB "out" port (3 ports total). If a ...
0
votes
1answer
4k views

Relay mail to external domains through external SMTP in Exchange 2010

I have an internal Exchange 2010 (sp2) server setup for some development projects. The domain is called dev.net. All users inside dev.net can reach and email eachother but I'd also like to be able to ...
1
vote
1answer
679 views

ssmtp for windows

I have the following problem with a software that should do mail notification for a biometric entry system: the software does currently only support SMTP over port 25 without TLS/SSL. Which is bad ...
4
votes
2answers
2k views

automatically encrypt and decrypt emails using gnupg (gpgrelay for unix)

My point of view related to email security is: whenever possible emails should be protected with PGP/GPG while transporting, but it doesn't have sense to store encrypted emails in local mailbox (this ...
1
vote
0answers
91 views

Setting up Relays in Windows

I'm trying to setup a pivoting relay with netcat on Windows, replicating a scenario easily possible by using pipes in Linux. Assume machine A can route to machine B and machine B can route to ...
2
votes
1answer
560 views

Using sendmail over SSH

I have a SSH access to the server with working sendmail provided by my hoster. I want to configure my local sendmail to use remote server as a relay. How can I do that? Is it posiible at all? Note: I ...
2
votes
0answers
954 views

Setting up a local RTMP Relay

I'm trying to live stream an online game, but I lag, so what I'm trying to do is find a way to setup my live stream client which lets me specify a custom RTMP server to connect to another computer ...
7
votes
3answers
1k views

Connect through own TOR relay, make edge node traffic unreadable

I understand that one of the limitations of TOR is that whoever runs the edge node can read all the traffic running through it before it gets split up amongst the TOR cloud. Lets say you were an ...
0
votes
4answers
3k views

How can I use an Asus WL-520GC router as a bridge/repeater?

I live in a shared accommodation with one Internet connection, which is shared to multiple PC's though a wireless network. Because the wireless router is at one end of the house and my room is at the ...
8
votes
2answers
23k views

What does “relayed connection” mean?

I've seen this when receiving files over skype, and some other situations, but I don't know what it means.
0
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1answer
1k views

Set up Exim to relay certain incoming emails to a different server

I have an exim server, running 4.69. We are aware of the vulnerability, and due in part we are in the process of migrating to 4.75. We have an "experimental" 4.75 email server set up, we want to set ...
0
votes
1answer
262 views

Need to extend my 802.11 G signal

I have a cable modem hooked to a D-Link DIR-628 that we use as a wireless router for a mix of Apple Macintosh and HP Windows 7 computers in our home. The home is over 5000 square feet and the D-Link ...
0
votes
1answer
190 views

router relay or router bridge

i got a dlink wireless router. i have a client that has two station far from the router, so the connection is slow(10 kbps). for the netwok to be faster there is a need of a local lan switch. ...