Ubuntu Networking :: Avahi Only Seeing Local Machine
Jul 25, 2010
I have a few ubuntu machines in my house, 1 mythtv backend server with other services as well, 2 mythbuntu frontends boxes hooked up to tv's etc. I wanted to push the audio from my laptop out over pulseaudio to the machine connected to the AV equipment.
I could not see any other pulseaudio sinks in padevchooser... this lead me down the road to investigating avahi.
When I run avahi-browse on my laptop (hydrogen) it only returns the services published from itself:
My laptop has vmware on it, and I've changed the vmnet intefaces to not support multicast so avahi ignores them. but I'm still at a loss to why my laptop can't see the other machines on my network with avahi (mdns).
I've got a home network that uses avahi's magic '.local' name service.
One computer is a server running Debian Testing/Apache2/Wordpress 3.0.x.
All the computers in the house have avahi-compatible service, so reaching the server is easy for computers.
I'd like to use my phone via the wireless lan to use the wordpress installation. The gotcha is, I can enter the ip address and get to the login page. The next page, the ip address is re-written to the avahi host name.
As an example,
1. I enter 192.168.11.110:100 and I land on the default page.
2. Click on a page of content.
3. URL is rewritten from the numeric address to the avahi, text address.
4. This is a 404 error on the phone. The laptops handle it just fine.
I tried to authenticate using ntlm proxy authentication service and my computer could not retrive the IP address. Currently I am using fedora cammbridge
I have a reverse ssh connection established from a remote machine to my local machine - it is established with autossh from the remote machine - I know it is connecting because I can see the two ssh processes on the local machine - and, when I kill the two ssh processes, two new ssh processes are immediately established. But I cannot login to the port on the local machine. I have tried everything - it simply refuses to connect. This remote machine is miles away and not readily accessible.
Code: ssh -p 7766 -vvv user[at_sign]192.168.1.108 OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0
[Code]...
I'm wondering if there is some way I could utilize netcat or socat to "tap into" this connection from my local machine??? (My ultimate goal would be to get to a shell on the remote machine.)
I m using the pc as gateway....i have two NICs:1) 10.6.15.254 ---> for internal network 10.6.15.02) 10.6.0.115 -----> for out side world I can ping and ssh any out side machine but when i try to ping or ssh any machine in the 10.6.15.0 network it says host unreachable.... i can ping and ssh gateway i.e. 10.6.15.254 and 10.6.0.115 but not the client machine in the 10.6.15.0 network from out side world even i flush iptable rules i can not access any client machine i m using ubuntu 10.04 as operating system..
i want to know mac address of a particular ip but the problem is that i am unable to ping that ip but that ip is being used by someone in my local network that i know from my proxy logs. i want to know the mac address of that ip,
I just getting back to working with linux. I'm having a problem with what seems to be an iptables thing or something easier than that, Enough here is the question I can get apache to run on the local machine by either going to http://localhost or by the ipaddress on the CentOS machine. But for some reason when I try to take a look on my laptop (on the same network) and try to go to it using the IP address is doesn't go. I can ssh from my laptops but it will not open the apache startup page.
i have a problem........ How to redirect local http port to remote ip ddress(192.168.10.64) using iptables..my destro is Centos 5.3 my rule is this iptables -t nat -A PREROUTING -s 0/0 -d <my local ip> -p tcp --dport 80 -j DNAT --to-destination 192.168.10.64
I am a newbie trying to enable virtual hosting and run it on a local machine without fqdn. I checked the http://9.9.9.92/ (my IP address) site and saw my (default) page. I would like to virtuly host a asdf.com If virtualy hosting is setup properly - how do I access the new setup? Just type http://asdf.com ? or is there more to it?
I'm trying to setup iptables to send web (tcp?) traffic through Squid and Privoxy transparently (to save having to setup everything per browser and hoping they honor their settings). I know I have done this before but I can't find the old config nor remember the exact options needed to do this.What I am wanting specificially is for Privoxy to grab the data as it leaves the browser, do its thing then pass it on to Squid before sending it down the line, then doing the same incoming (Privoxy -> Squid -> requesting app).
why my new Ubuntu 10.04 computer won't automatically advertise afp thru avahi to the network? This is a new install of Ubuntu 10.04, I downloaded and installed newest version of Netatalk, and the Avahi daemon. Both installed with no issues. (I followed instructions from articles on here) I can manually login to Ubuntu afp share from my iMac, by going to "Go to Server" and typing in the ip 10.0.1.3 and putting in the Ubuntu username and password. I just can't get it to advertise or broadcast itself to the network like it is supposed to using netatalk and avahi. I've followed all of the tutorials I can find on this, but nothing works. Even if I issue the command to restart avahi daemon, Ubuntu still isn't seen in the iMac's finder window? Because I can manually login to it, I am assuming that netatalk is working properly. I've even tried to issue the command to restart netatalk first, then restart avahi, but still nothing?
I've got problem with Avahi on my laptop. It can see the other machines and services on the LAN but not it's own local services and I have no idea why. The laptop (hostname: forseti) sports Ubuntu 10.10, installed aavahi-daemon, avahi-dnsconfd and libapache2-mod-dnssd. Firewall is disabled. Other hosts on the LAN are: magni (openSuSE 11.4 with lots of services published and visible from forseti) and freya (Ubuntu 10.10 with gnome-user-share up & running). Forseti can see the other hosts and their services but not itself. The other hosts can't see forseti. Checked both with nautilus and CLI's avahi-browse.
Since I've updated to 9.10 my avahi-daemon sometimes won't start at boot.I've to "restart" it manually.I reinstalled it without success.Has anyone here the same problem? Or a useful solution?
I got a new X201 which is running Ubuntu 10.04. While at home, everything is fine, at work, I encounter some issues with wireless. the signal cuts in and out repeatedly.Here's the output of ping. I set it to ping a server every 90 seconds, 10 times. So this is a snapshot of 15 minutes of network activity...
Code:
PING (REDACTED) bytes of data. 64 bytes from (REDACTED): icmp_seq=1 ttl=252 time=1.50 ms 64 bytes from (REDACTED): icmp_seq=2 ttl=252 time=2.13 ms 64 bytes from (REDACTED): icmp_seq=3 ttl=252 time=1.38 ms
[code]....
Also I tried this (from a 2 year old thread which was most relevant solution I could find):
Code:
Changing AVAHI_DAEMON_DETECT_LOCAL=1 to AVAHI_DAEMON_DETECT_LOCAL=0 in /etc/default/avahi-daemon has got rid of the irritating pop-up. Basically, every 5 minutes or so, for a solid 60 seconds or so I get no signal. I've tried updating the kernel, and doing apt-get remove avant-daemon, but still have problems.
I am wondering if it is possible to use avahi to resolve hostnames across a gateway. With gateway I mean a linux box with ip_forward'ing enabled to pass traffic between interfaces. The gateway connects two networks with all hosts running Ubuntu and specifically avahi-daemon. The gateway is not running avahi and I am not able to install it there. The firewall configuration on the gateway is not blocking any traffic between the networks. I am able to send UDP packets from a host on one network to a host on the other.
When I run tcpdump on a host and try to ping that host.local from a machine on the other network I see no traffic. This means that the gateway is not passing the multicast traffic along. Is there any special setup required on the gateway to allow this?
I am sharing some folders from my Ubuntu machine, using Netatalk and Avahi, over my network.I access these folders from my Mac using the AFP protocol.When all is well, my Ubuntu folders show up in Finder on the Mac and I can connect to them.But at random intervals, the Ubuntu folders will disappear. Sometimes they reappear a short while later.At other times, they wont appear until I go to my Ubuntu machine, and re-save (even if i don't change anything) the file:/etc/avahi/services/afpd.service.
I do not quite understand how the virtual interface wlan0:avahi appeared. My guess was, my request "sudo dhclient wlan0" failed to get a valid ip, although I did not get any error message from running that command. I executed "sudo dhclient wlan0" again, but still no error message or network connection.
Later today, I tried to connect to a public wireless network. Still got the same error. But when I reboot my machine, no such problems.
In a previous thread I had detailed an issue I was having with avahi not firing up properly at startup.As a bit of background: the services available on the server aren't advertising until I restart the avahi-daemon manually after startup - The syslog shows the daemon starting on boot, but it never seems to access the service file.I was wondering if it is possible that this may be a file permission problem?
fedora.local = F14 default mingisapsycho.local = Mac OS X 10.6.4
I want to be able to ssh/scp between these two machines using:
ssh -l login fedora.local and ssh -l login mingisapsycho.local
rather than using IP addresses. Neither of these works, from either of the two machines. This does work between Mac OS machines. And I can ssh if I use IPs. So it seems that by default Avahi is not configured even though it is running? I really don't understand. By "does not work" I mean I get on both machines: ssh: Could not resolve hostname blah.local: Name or service not known
F15 current avahi-daemon installed nss-mdns installed firewall totally disabled (for now while testing) connected to network wirelessly
For perhaps 5 minutes I can either ssh into or from the F15 computer using:
ssh chris@macbook2.local
OR
ssh chris@f15.local
Works fine, no problems. And then in about five minutes it work resolve in either direction: ssh: Could not resolve hostname f15.local: nodename nor servname provided, or not known
I can still ssh in using an IP address. So I do:
[chris@f15 ~]$ service avahi-daemon status avahi-daemon.service - Avahi mDNS/DNS-SD Stack Loaded: loaded (/lib/systemd/system/avahi-daemon.service)
[code]....
*sigh* No that's not it. I just found no mDNS service in or out of the computer 3 minutes 26 seconds after restarting it, no additional items in messages.
Ubunu 9.1 and I would like to set up my machine so that when i type a domain name into another browser on my local network, I will get the apache server. I currently access the pages i have on the ubuntu server by typing the ip address into another machine on the network, I would like to type in a DNS type of name instead.
Ultimately, I would like to access this machine from outside of my network over the Internet, and would appreciate insight on how to do this, too.
I would like to be able to have one local user connect to the X of another local user and run an X program. On fedora, I can simply run: $ xhost + And then have the other user run: $ sol --display=0.0
This is not working on my ubuntu (10.10). I am guessing that there is an additional level of Xauth restrictions, but I cannot find out how to get past them. Both users are local to the machine. I would like to not use sux or gdsu as both require you to enter the password and I would like this to be seemless. I am aware of the security concerns and believe that I have mitigated them.
The devices tab under ubuntu one preferences lists only <LOCAL MACHINE> the staus at the top says disconnected, the connect button is grayed out and the reset button at the bottom right does nothing. Files don't sync etc but I think this is as a result of the situation described above. I have tried on the advice of an older thread to delete the token for Ubuntu one from 'passwords and encryption keys' and then revisit Ubuntu one preferences in order to sign in again and grant my computer access but this made no difference.
I'd like a way to see all of the devices on my local network and what their local IP address is. I recall that I used wireshark to troubleshoot a similar problem a while back, but it doesn't seem to have a way to see all of the devices- only the traffic. (I'd like to do this without having to physically interface with my router if possible, and I am in an encrypted network if that matters)
I have installed a web server on my local network. Everything is well configured and web pages are shown correctly from Internet (outside the local network) using the domain or the public IP.The issue is if I try to see that web pages (using the domain or the public IP) from inside the local network. In that case the router config page (192.168.1.1) is shown instead of the web pages.From inside the local network I'm only able to see the web pages using the internal IP address (192.168.1.XX).
I have a server that is on a high port number, and people want it on port 80. For root exploit issues people say the server can not run as root. So to solve things I want to redirect port 80 to a high port number, say 12345 on the machine. This has been discussed all over the web, so I find I need to do this:
And I do this, an voila things work for the whole world. All machines in the world can see the server on port 80 on the machine.Except, on the machine itself. On the machine 123.45.67.89, I try to get to the server on 123.45.67.89:80, I get a can't connect error. On the machine if I try 123.45.67.89:12345 I can connect.What am I doing wrong here? I don't want localhost network really, I want the ip address and port, but I want the forwarding to work on the local machine. But it doesn't...
