Networking :: Piranha: Can't Ping Realserver When Pulse Daemon Started?
Jul 28, 2011
I'm trying desperately to get ipvs load balancing up and running using the RedHat Piranha utility.I'll post my config files later in the message.In order to simplify things, I've only got one LVS director running (no backup director), and I've only got one realserver running.I can ping the realserver static ip from the LVS director when the pulse daemon is NOT started.About one minute after I start the pulse daemon, I can no longer ping the realserver static ip.I can ping the realserver static ip from any other box on the subnetThe LVS app requires that the LVS director be able to ping (or CONNECT) the realserver as a sanity check to make sure the realserver(s) is/are still alive.
After I login my desktop preferences are not loaded. If I try to change them (Control cneter-> apparence) I get a message that says: Unable to start the settings manager 'gnome-settings-daemon'.Without the GNOME settings manager running, some preferences may not take effect. This could indicate a problem with DBus, or a non-GNOME (e.g. KDE) settings manager may already be active and conflicting with the GNOME settings manager.The first lines of .xsession-errors show:
/etc/X11/xim: Checking whether an input method should be started. HOSTNAME: Undefined variable. XDG_DATA_DIRS: Undefined variable.
I installed MySQL on my Ubuntu 10.04 desktop. As I need it only once a month I removed it from all runlevels but mysql is still running after boot up. "lsof" shows that it is running and listening for connections.
i've written small tool in C which makes measurements on my router (OpenWrt White Russian).
It is working as a deamon. If the tool is started manually, everything works fine. If it is started per script on startup, the following system call doesn't work :
rc = system (command); the returned rc in this case is 256.
first i thought it is a problems with the user rights for the tool, so i have added +s to it. but that didn't help. as i said, when the daemon is started by hand, the system call works fine.
I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
But if I gave ping -I eth1 <IP> then I can ping.
I cannot install any package, so tell me solution which includes not installing any package.
I am trying to determine the frequency of a signal coming into an imx27 processor running linux os 2.6.22 If i were using a micro i would set up a timer for a set period of time and then count up the rising edges coming in. However I am not sure how to do this with C code in linux.
I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.
I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.
I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.
Configs below:
Ping by hostname - there is a 5-6 second delay between each one of the responses:
Code:
Ping by IP - the responses come VERY quickly one after the other:
So, I have an Virtual Machine running CentOS 5.4. It sits behind a hardware firewall which also does NAT'ing. I've set up plenty of these, so I know for sure the firewall and NAT rules are set up correctly. From the host, I can ping anything in my subnet and the gateway. But I can't ping anything else beyond the gateway. I can perform DNS queries and when I try to ping, it finds the appropriate IP address.But from the outside, I can ping the PUBLIC address (It's a 1 public to 1 private address NAT, not 1 public to multiple private). I've tried it with IPTABLES on and off, with no change.
I have Mandriva One 2009.0 (192.168.1.100) on one box and Mandriva Free 2010.0 (192.168.1.118) on the other. I can ping router (192.168.1.1) from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.
Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.
after few days of hard work about redhat cluster and piranah, i have done 90% hopefully,but i am stuck with iptables rulesi am attaching full piranah server screen shot of my network .please have a look and please tel me, what else to do in piranah server ...a) from firewall (Lynksys) what ip shall i forward port 80 ?? ( 192.168.1.66 or 192.168.1.50 ??)b) Currently its looks like http request is not forwarding from Virtual server to real server , what iptables rules shall i write ?(Please have a look to iptables rules)also, this link for my piranah server setupi guess i am stuck somewhere where i need some experts eye to catch it upso please look at the all the pictures , ifconfig and iptables rulesifconfig :
ifconfig eth0 Link encap:Ethernet HWaddr 00:0F:3D:CB:0A:8C inet addr:192.168.1.66 Bcast:192.168.1.255 Mask:255.255.255.0
I have connected xp and fedora through crossover cable . xp has ip address 192.168.0.1/24 (manually assigned) fedora has 192.168.0.2/24 with default route equal to 192.168.0.1
I can ping fedora from xp computer but i can't able to ping xp from fedora computer.
I have manully edit the /etc/sysconfig/network-scripts/ifcfg-eth0 file with correct subnet mask and ip address because when i tried to give ip address manully in network manager the subnetmask is replaced with gateway address don't know why.
Now i want to share internet through crossover cable . xp is connected to internet through wireless usb adapeter.
I recently installed KDE in my ubuntu 10.10. To access KDE, I want to use startx /usr/bin/startkdeBut using it disables sound in KDE (Sound is working fine in GNOME). It doesn't sound for anything like login sound, totem, mplayer or any other playerBut when I press Alt+Ctrl+F1 to change to virtual console, the playback resumes from where it was in time and when coming back Alt+Ctrl+F7 and the time in totem (or any other player) doesn't move. While log out also it doesn't play logout sound and doesn't logout, so I have to press Ctrl+Alt+F1 so that logout sound play then it exits.When starting KDE by kdm or gdm, the sound works normally. But I don't want to login again using kdm or gdm and not to use root user to start kdm or gdm.I don't know what is the difference between when KDE is started by startx or by kdm/gdm where the same user login in kdm/gdm as that for startx
I have a piranha magnum mp3 player which is connected with usb cable. When i connect the player it's resetting. dmesg output;
Code: [11326.752063] usb 2-3: new full speed USB device using ohci_hcd and address 2 [11326.964442] usb 2-3: configuration #1 chosen from 1 choice [11327.742086] Initializing USB Mass Storage driver... [11327.742319] scsi2 : SCSI emulation for USB Mass Storage devices
This is my first time to test piranha and I can't understand couple things: 1. how to setup public floating IP address between active and backup piranha node? 2. does piranha nodes have to run on public IP? 3. how to connect active piranha node with backup nodes? 4. does piranha only support http and ftp? 5. do I need to create common login for load monitor so that piranha could login to real servers and check the load ? 6. what is the hardware requirement for piranha to run on heavy loading site? I am using VMs all the time. I am using web gui interface with minor file editing, but I prefer done it with GUI. Currently running Centos 5.6 x86_64.
I try to ping with php : exec("ping -n 1 $ip",$output[],$retval); it works fine in window. but in linux i got this error : ping: icmp open socket: Operation not permitted are there any ways to solve this ?
I seem to be having a strange problem configuring Piranha to load balance (Direct route) 2 ports across 2 w2k3 servers in a test environment. What is strange is that 1 of the ports are working fine but the other port doesn't work. I've read many how-to and after many frustrating hours I disabled the firewall, iptables and arptables services and one of the ports are load balanced across the 2 real servers. Here's the environment.
[Code]....
I can telnet from the client to the realserves on both ports and it's works. When I telnet to the VIP only one port gets through and the other gives me "could not open connection to host port 32777 : connect failed. The configuration in Piranha for one port is the same as the other. I can't help but think that some other configuration for port 32777 was missed.
I am new to using wireshark and I've been browsing around the packets it a bit. I figured I'd try and use it to cut into a protocol that isn't documented, that I can find, but doesn't seem particularly secure. I tried cutting into a protocol and I turned _everything_ off, but wireshark was still picking up packets left right and centre. So I decided to stop the internet daemon and still, packets were being sent over the internet. So I decided to pick some of the IPs and do a reverse look-up. Each and every one of the IPs are of Russian origin or close.
I'm under the impression that these are unwanted packets. I've also noticed that they are sending data from the same port: 32165. Another thing I noticed while doing reverse look-ups is a lot of these IPs are hit in 'Spam & Open Relay Blocking System' and 'Project Honey Pot' which seem to be spam blockers and trackers. What I should do or what I should investigate? The reverse look-ups are only providing me with the ISP which 'owns' the IP block the IP is apart of. They are from various ISPs every time.
Yesterday I had to use my netbooks Acer restore program to restore my win7 partition to factory settings. This morning when booting up unbuntu, I was greeted with the guild freezing every time. I also booted in classic and had the same problem. I decided to open safe mode and deactivate each program one at a time. WHen I get to network manager Unity boots fine. I then try to start Network Manager from inside of Unity after it boots and as soon as it boots, the entire computer freezes again, it was booting fine until I had to restore my win7 partition, win7 networks still work. It's and Asus Aspire One 722.
I am new to linux and WAS a window user. boy am i glad i switched, but still have lots to learn. Any who, currently i am working on a server for some residents at my current job. I have DNS and everything setup right and it is working. Samba on the other hand is configured right but it keeps shutting down after about a minute. it says "Dead". Ill restart the service(rcsmb start), and keep checking the status, and after about a minute it shuts down again. I have done a restart, double checked my configurations and still cant find why this is happening. (config file somewhere?)
Now since im new, im not sure what info any of you would need to help me out, so please chime in, if there is a specific file or info you need to know, please let me know and ill try my best to get it.
My ubuntu system has been running really well until this morning - software update prompt appeared on the screen, so I ran with it and let it do its thing. A while after this, my WiFi network connection started failing. I've tried rebooting and then it can take up to five minutes or more for the password (keychain) prompt to appear. Once I have typed in the password the network connection starts to work. Then cuts out. Works. Then fails again.
Adapter: Ralink RT3090 802.11b/g/n Wi-Fi Basically, whenever I disable it, I can't get it to turn back on. If I hit Enable, it says device is not ready. What can I do to make it work ?
This applies to my 2 opensuse PC's, my Windows PC is fine.I can ping a hostname, say "PC1" but I can not ping PC1.domain.local (even the host PC can not ping it's own FQDN). When I ping just the hostname the ping stats even list the FQDN.Onto the next issue, since all my PC's, have the domain prefix domain.local, my Synology can not. I can ping it's IP and that is it. I can resolve it's name with nmblookup just fine tho and that is what is killing me. How is this not resolving.Even weirder, I can browse to "Synology" in Network Servers under places on the slab.
I can connect to the internet and browse. I'm wired and using DHCP on a Windows network. Updating Ubuntu or downloading programs takes hours for 52MB of updates. Why? I read some articles that mention Network Manager needs to be enabled at the .conf file. Can I edit this using GUI or command line only?
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?
