LAN Messaging

As a Network Administrator, I should know the answer to this question. How can I send a message directly to the screen of all the users on my domain about system outages or other important messages on my 2003 Windows Network? I know there is a way, but the answer has elluded me so far.
Is SMS the only way or is there some other built in feature that I have forgotten about?
Thanks
Harried, stressed, overworked, underpaid Network AdminNon Profit Network Admin

What about this one: http://itknowledgeexchange.techtarget.com/network-administrator/send-a-message-to-all-users-in-an-ou/
Paul Svirin
StarWind Software developer ( http://www.starwindsoftware.com )

Similar Messages

LAN-based messaging

Are there any apps that work on both desktop and ipad for LAN based messaging?

I am havng some difficulty using this on an IOS device (specifically Ipad). Can anyone help or confirm that they are indeed able to send a LAN Message using a Wifi connection between a Mac and an Ipad wothout the Wifi having an internet connection attached to the Wifi.
This is very usefull/importat feature for me. The secenario would be to be able to comminucate/message between people while at an event. However, internet will not be present at the event, nor will it be needed.

Send Message to Session via SQL?

Hello,
I see some of the oracle tools touting the ability to send lan messages to oracle sessions/users.
Can anyone describe how to do this with SQL? I've looked and looked and cannot find a solution to this.
Thanks!

Ah so it looks like this is not a function of sql/oracle db but application ie Oracle Enterprise Manager.
To send a message to a currently connected user
Expand a server group, and then expand a server.
Expand Management, and then expand Current Activity.
Click Process Info.
The current server activity is displayed in the details pane.
In the details pane, right-click a Process ID, and then click Send Message.
Note It is not possible to send a message to a user when SQL Server Enterprise Manager is running on Microsoft® Windows® 98.
In the Message box, type the message.
Optionally, select Using hostname, and enter the computer name to send the message to a specific computer.
I don't know how i would do that because there is only one host name with multiple terminal sessions. :/

Back to my mac : how to wake it ?

Hello, i ve got an imac and macbook, plus airport express. Back to my mac has been setup and it works just fine, however today i left imac on, then came the screensaver on... after a few minutes i went using my macbook and i tried to connect with my imac from the finder but i was unable to.
The password has been setup on both computers but i am unable to wake it up from the sleep mode.
How do i do that ? thx

When he computer is asleep, it's not running anything. All of the software (including the OS itself) is basically on hold waiting for an "event" in the form of a hardware "interrupt" triggering the resumption of the OS. This is a very fundamental part of how "sleep" mode works on computers and is the same regardless of the operating system (works the same for Windows or Linux, for example).
The key for you is to cause a piece of the hardware on your Mac to trigger the wake-up. The most obvious and natural event is to click the mouse or press a key on the keyboard, which triggers the USB or bluetooth receiver to issue a wake-up event. However, this isn't terribly useful if you aren't sitting next to your Mac.
What you want to do is to configure your network adapter to allow it to trigger a wake-up event. To do so, open the "Energy Saver" preference pane, click on the "Options" tab and make sure that "Wake for Ethernet network administrator access" is checked.
Once that's done, the Ethernet card will be able to wake up the computer. There's one small, issue, however, in that a computer that is asleep doesn't have an IP address (the network software that manages that is asleep, of course), so the ethernet adpater needs to receive a special "Wake-on-LAN" signal that contains the hardware MAC ("Media Access Control") address in it. You can Google for various Wake-on-LAN tools for the Mac, and even web-sites that will send computer Wake-on-LAN messages from the Internet. Use these tools to send the wake-up message to you computer (you can find the MAC address of your ethernet card by going to the Network preference pane and clicking on the "Ethernet" tab).
There's a wrinkle, of course. Wake-on-LAN works great on local networks, but to receive Wake-on-LAN from the Internet, you need to either have no router/firewall between you and the Internet, or you need to configure your router/firewall to forward Wake-on-LAN messages to a special (IP address on your local network (generally, the IP of your computer when it's awake, with the last of the 4 numbers replaced with 255). Not all routers do that (for example, Verizon FIOS' routers from Actiontec have a bug that prevents it).
There's one additional issue. There's no such thing as Wake-on-WIFI. Your computer needs to be connected via ethernet cable to be woken up by a network connection.
One thing you can do is setup your Mac not to sleep automatically, only to turn off the display. This is what I do as I have one of those buggy Verizon/ActionTec FIOS routers.

WRT54GS Wireless security two routers (WDS)

2 WRT54GS
Wireless connection between routers.
No1 SSID test (connected to ADSL modem) disabled security
No2 SSID test1 disabled security
After some hard work I was able to make a wireless connection (50m/150ft) between two WRT54GS routers. But when I enabled security (WPA-TKIP) on the router (test1) that is't connected to the ADSL modem, it could't connect to intenet anymore, only to the secured router (test1).
I would be very happy for some tips how to enable wireless security on both routers.
Regards Jocke

Jocke wrote:
As far as I know the routers using the official firmware for both routers.
I took over a project that was started a while ago and the fore some reason it was't finished. The only thing thats left is to secure both routers.
Wireless Distribution System (WDS) compatible? Yes
http://whirlpool.net.au/index.cfm?a=h_view&model_id=363
Under the tab WDS I just added the wireless mac from the other router.
test added test1's wireless mac address as LAN
test1 added test's wireless mac address as LAN
Message Edited by Jocke on 06-29-2006 05:28 AM
My friend has the same router and we haven't noticed a WDS tab in the setup page of this router. Can you mention the exact firmware version installed on your router?

Connecting to mac remotely

Work for a large corporation. The apple computers here at work a updated and monitored by the engineers here. I have been trying to use the screen sharing option in Snow Leopard via these instructions here to connect to my home computer from the G5 at work.
http://www.farawaymac.com/mac-server/screen-sharing-remote-access-with-leopard/
Haven't been able to connect yet. What would be some possible causes of not being able to connect. Also do I enter my internal or external ip address for the home computer I'm trying to connect to?
I know my corporation has some sort of firewalls in place- but would this affect and outgoing signal rather than an incoming one?

This is very straightforward if you are familiar with SSH and networks, and extremely awkward if you are not. If you fall into the latter category, I'd suggest you use a commercial solution like Back To My Mac, Log Me In, etc.
If you are in the former category...
1. If you really want to be secure, setup SSH on your Mac to refuse passwords and only accept certificate-based logins (you do this as you would for any UNIX system; OS X provides no GUI or setting for it -- don't forget to generate a certificate to use from work and put the public key in your home .ssh/authorized_keys file).
2. Enable Remote Connection and Screen Sharing in the Network preferences on your home Mac.
3. Configure your home router to forward some port on the WAN to the SSH port on your LAN. I use the sstandard SSH port, but it's up to you.
4. Note the IP address of your WAN and, optionally, setup a service like DynDNS to automatically assign a DNS name to your home computer.
5. Make sure the public-key you have installed on your home machine matches the private-key on the machine you are going to use at work (if you use keys instead of passwords; if not, make sure that you use a really strong password).
6. Use SSH from work to tunnel VNC from your work computer to your home computer. The VNC port is 5900, so it would look something like this:
ssh -t -t -C [email protected] -L 5901:localhost:5900
7. Then you can open a screen sharing session from Terminal.app or a script like so:
open vnc://localhost:5901
... one other step that I take personally is that I leave my home machine asleep. I have setup my router to forward wake-on-lan messages to the LAN broadcast address so that I can wake my computer remotely. It's considerably harder to crack into a system that spends most of it's time asleep. A prospective cracker would need to find the port to send a WoL signal too, figure out the target system's MAC ID number to send a WoL message, and then they'd be able to try and guess my 2048-bit SSH key.

Slow mail services

I'm running Mac OS X Server 10.3.9 on a PM G5, and lately my users are experiencing well below average send and receive times: 20 to 30 seconds for small, text-only email. Nothing really changed and the ammount of email that we get is about 3000 x day. A Barracuda Spam firewall is in place stopping 95% of the spam.
The slow service was there even before the Barracuda system was installed.
I read some topic in this forum but they didn't solve the problem.
The DNS service on the machine is off. and all the SMTP or IMAP & POP connections are using internal IPs.
Any ideas or suggestions are appreciated.
Thanks for your time.

Feb 1 12:32:07 www postfix/qmgr[457]:
1D68515618EB: from=<[email protected]>, size=3030, nrcpt=1
(queue active)
Feb 1 12:32:22 www postfix/smtp[13048]: 1D68515618EB:
to=<[email protected]>,
relay=gmail.grafikom.ca[207.35.207.36], delay=29,
status=sent (250 2.6.0 <C1E78E35.DD94%[email protected]>
Queued mail for delivery)
This is from my LAN going out
I removed the non-applicable lines.
13 seconds (but is missing original "connect from"
line, so probably adds 16 secs?). Was this from a
remote user (from=<[email protected]>)?
Feb 1 12:13:43 www postfix/qmgr[457]:
9D0761561700: from=<[email protected]>, size=5144,
nrcpt=1 (queue active)
Feb 1 12:14:25 www postfix/smtp[12810]: 9D0761561700:
to=<[email protected]>,
relay=a.mx.mail.yahoo.com[209.191.118.103], delay=63,
status=sent (250 ok dirdel)
42 seconds (plus 20?). Similar comment to last one -
remote user?
Same here, my LAN going out.
Feb 1 12:06:35 www postfix/qmgr[457]:
D8DB41557739: from=<[email protected]>, size=931, nrcpt=1
(queue active)
Feb 1 12:07:00 www postfix/smtpd[12719]: connect from
unknown[192.168.0.120]
Feb 1 12:07:00 www postfix/smtpd[12719]:
D7760156164F: client=unknown[192.168.0.120]
Feb 1 12:07:00 www postfix/cleanup[12720]:
D7760156164F:
message-id=<978A9F1907FF3F46B7638745086B8CBA3AC43B@nae
xcmb4.na.global.ad>
Feb 1 12:07:00 www postfix/qmgr[457]: D7760156164F:
from=<[email protected]>, size=11626, nrcpt=1 (queue
active)
Feb 1 12:07:00 www postfix/smtpd[12719]: disconnect
from unknown[192.168.0.120]
Feb 1 12:07:01 www postfix/pipe[12806]: D7760156164F:
to=<[email protected]>, relay=cyrus, delay=1, status=sent
(xxxxxx.com)
Feb 1 12:07:16 www postfix/smtp[12810]: connect to
echoadvertising.com[64.74.223.9]: Operation timed out
(port 25)
Feb 1 12:07:16 www postfix/smtp[12810]: D8DB41557739:
to=<[email protected]>, relay=none,
delay=171983, status=deferred (connect to
echoadvertising.com[64.74.223.9]: Operation timed
out)
The message with ID D8DB41557739 is an outgoing
message which is unable to be delivered and has been
sitting in your queue for about 2 days.
The second message from your lan (D7760156164F:
client=unknown[192.168.0.120]) took 1 second to go
through.
Feb 1 11:16:35 www postfix/qmgr[457]:
A31B11560C8D: from=<[email protected]>, size=65854, nrcpt=1
(queue active)
Feb 1 11:16:45 www postfix/smtp[12365]: A31B11560C8D:
to=<[email protected]>,
relay=mxmta.sympatico.ca[67.69.240.25], delay=1947,
status=sent (250 ok: Message 39045438 accepted)
Took 10 seconds in that attempt but has been sitting
in outgoing queue for about 30 minutes - possibly due
to greylisting on relaying server or some other
reason why initial attempt couldn't get through.
Maybe the relaying server is intentionally creating
delays as an anti-spam measure - who knows.
If the guess about remote users is correct (only 1
obvious LAN message there), I would be looking to see
if the pattern follows in other messages - does
outgoing mail from LAN go through promptly? If
problem seems to be remote users then I would be
looking at their connection method. Also, do they
connect direct to your server or does their traffic
go through the Barracuda?
If your server is very busy and outgoing mail from
LAN users is also generally delayed then maybe you
need an upgrade to server (RAM?).
Apart from that, nothing else I can comment on since
I'm only seeing a very small selection of log.
-david
the LAN users are going out directly, remote users are going thru the Barracuda firewall.
It can be RAM, I only have 1 GB of RAM in that machine and is also serving AFP out to about 20 client.

Several questions/issues...

Okay, so I finally found a HD with OS 9.1 (it was in another computer this whole time) and now I want to install Tiger on it. I have several other questions as well...
First, I would like to connect my Mac to the internet so I can install updates, etc (using an Ethernet cord and DSL). When I go to the help and type in internet connection, it lists steps for me to try. At the bottom it says "open the internet setup assistant for me." When I click on the link, it gives me an error, saying "This item cannot be opened. It is either disabled or not installed." How do I enable it or reinstall it?
Secondly, I would like to make a copy of the entire hard disk onto another hard drive, that way, if I corrupt files on the installation, I have another hard drive I can work off of. What is a program that I can use that makes an exact copy of the hard drive? It also needs to work with Mac OS 9.
Thirdly, the back of my G3 B/W Mac says that it has a 400 MHz processor, which is strange because in the "about this Mac" option on the menu, it says that the Mac is a 300 MHz G3. Is OS 9 being tricked into thinking that this is a slower PC? Is the motherboard not the original and it has been simply swapped out? How can I tell?
Lastly, eventually after I back up the HD, I would like to install OS X Tiger (because Leopard can't run on G3s). I believe I have an upgrade CD, but I'm not sure, but it's a number of CDs, not a DVD. When I try to run it, it comes up with the CD contents and I click on Install OS X. The gigantic X pops up and it tells me to install it, I have to click restart to restart the system. When I hit restart, it gives me an error, saying "Error. Startup Disk was unable to select the Install CD as the startup disk(-2)." I think the problem is that my CD drive is not in the right boot order or something, and its throwing the Mac off. How do I fix this? Or is it my Tiger CD? Or, am I supposed to upgrade to Jaguar, Panther, and then Tiger? Or do I even have an upgrade CD, and it's the full install?

RE: Internet -
How you configure DSL depends mainly on whether you have a Router that you can configure.
Case 1 -- No Router: your ISP likely provides a connection for a single computer. If you are actively using that computer, you will not have room for an additional computer. If you were given a Username and Password, that is likely to require PPPoE, which is not supported under Mac OS 9 without a "Helper" application, such as MacPoet, to establish and maintain the connection.
If you are lucky, you can substitute your Mac for your other computer. You will need to enter the ISP-supplied "Magic Numbers". IP Address Manual and the address they gave you. Subnet mask is often 255.255.255.0 and Router Address: the address they gave you. The Domain Name Server (DNS) IP addresses, typically two, should both be entered in the large field for that parameter. The rest can usually be left blank.
Case 2 -- Router you can configure: The Router will act as your agent on the Internet, forward packets on your behalf, and protects you from abuse from the Internet by hiding your IP Addresses, while keeping track of the details for you. If you need a Username and Password, you set the Router up to deal with that, and no other Computers need to be bothered. You configure the Router with the 'Magic Numbers" provided by your ISP, and each computer is setup more simply.
The Router will pass out local IP Addresses to each local computer using DHCP, so set IP Address: Using DHCP and most other fields will be "supplied by Router".
In every case:
In OS 9, you MUST close the TCP/IP Control Panel and Save Changes to have them take effect.
Then open a Browser window and put 17.149.160.49 on the url address line. If you get Apple, Inc web site, you are almost there. then try Apple.com -- it that gets you Apple, Inc you are done.
If not, open the TCP/IP Control Panel again and see what IP Address you have. 168.254.xxx.yyy means you are talking only to yourself.
106867- Mac OS 9: How to Connect to the Internet via Cable, DSL, or Local Area Network (LAN)
Message was edited by: Grant Bennet-Alder

Sending a broadcast message to all the systems in the LAN

Hi,
I am having a standalone java application [client/server]. My application server is running on some system in the LAN.
How can i identify that server ip in my client program?
Is there any possibility for sending broadcast messages to all the other systems on a specific port?
Thanks,
Gupta.

Is there any possibility for sending broadcast messages to all the other systems on a specific port?If you have more than one router/hub these will need to be setup to allow this traffic.

Sending a message to a Mac in my LAN?

Hi,
I know the 'talk' utility but that need the other party to start talk (or at least have a Terminal session open), too.
I want to send a text message, a short string (typically one-liner) immediately to another Mac's screen here in my LAN. Just like the "net send" thingy on Windows.
I'm sure there's a way or some nice open source tool, right? Need a pointer because my googling wasn't very successful, yet.
Thanks a lot!
Stefan.

Search versiontracker.com or macupdate.com

Send message in LAN

What package to use to send messages in LAN? When a message is sent a graphical dialog box appears at receiver's side.

you could use gajim, a jabber client, together with avahi. the other clients will show up in the roster automatically so you can send instant messages directly to them without configuring any network specific stuff like ip addresses and such.
- pacman -S gajim avahi
- add avahi-daemon to DAEMONS in /etc/rc.conf or start it with /etc/rc.d/avahi-daemon start
- in gajim go to edit -> accounts
- check "enable link-local messaging"
there is also Planimo [1], but that one doesn't use avahi so you have to know the ip addresses, so i'd recommend gajim with avahi.
[1] http://www.gnomefiles.org/app.php/Planimo

Exchange 2013 stating their name and LAN IP in the message header

Friends,
our Exchange Server 2013 server is sending
emails normally, but some target servers are
complaining that our messages are coming up with
the name and LAN IP of the server
header.
Look at the picture that actually has
a moment where the Exchange server informs
its name and its IP, how can I
avoid this?
Companies that are complaining, say it
falls in the spam filter and then
denies delivery of the message.
Hold and thank you!
Ivanildo Teixeira Galvão

That's expected and should not cause the message to be flagged as SPAM. If that is the case, just about all mail would be treated as SPAM. I doubt that is the reason.
You can remove those if you want with a hub transport rule, but I don't see the point.
http://www.msexchange.org/kbase/ExchangeServerTips/ExchangeServer2007/SecurityMessageHygiene/HowtoremoveinternalservernamesandIPaddressesfromSMTPheaders.html
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

How to sent a message or notification to PCs on LAN using Powershell

i want to sent a message to list of PCs on LAN, how to do that, thanhk u

http://ss64.com/nt/msg.html
Don't retire TechNet! -
(Don't give up yet - 13,225+ strong and growing)

HT4259 When I'm trying to extend my network using airport extream to airport express via LAN, the express is finding the network, then not completing and getting error message that it cannot connect, any advice appriciated

I'm using a virgin superhub, turned into modem only and connected airport extreme, wireless network setup and working
From the airport express I have a LAN to my office where Im trying to get a airport express setup as a extended wireless network
The express is finding the extreme device and network, it then won't connect and I get an error message "an unexpected error occurred. Try again"
Any help appriciated

From the airport express I have a LAN to my office
I'm confused, did you mean to say Extreme here instead?
What model #s are your routers?

Problem: ipod server could not be contacted, i went to control panel, lan settings, ck'd auto detect and went back to i-tune to update and got the same error message, any help is appreciated

Error message: Ipod software update server could not be contacted. I went to control panel, lan settings, clk'd auto detect settings and ok. When i went back to i tunes and clk's update, i got the same error. Any help is appreciated.
Rand221

See the previous posts on the right side of this page under the heading "More Like This" that have you same error message.

LAN Messaging

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