similar to: Two Node Cluster

Hi Peter and other Libvirt-Users, Thank you, I greatly appreciate your response. The diagram I provided may be a little misleading, so I have attached a new diagram (also available here: https://i.imgur.com/X3nFMCz.png ). I think I also need to provide some more detail about my scenario here: These physical nodes are provided to me by "bare-metal cloud" providers like Scaleway / OVH /

I have to say that I wouldn't do the networking that way - in fact, in the clusters I manage, we haven't done the networking that way :-). Rather than layer 3 routing between VMs, we've chosen to use layer 2 virtual switching (yes, using openvswitch). We have the luxury of multiple 10G NICs between our hosts, so we've separated out the management network from the guest network,

Hi, I''m trying to puppet kick with class option. Pupper Master: puppetmaster.example.com Puppet Client1: host1.example.net Puppet Client2: host2.example.net But I get this error. --- [root@puppetmaster ~]# puppet kick --class test --debug test: host1.example.net.example.com, host2.example.net.example.com Triggering host1.example.net.example.com, host2.example.net.example.com Host

I am using tinc to connect together VPCs in AWS across multiple regions and accounts to provide secure communication. For the most part, it works great. A few times, I have seen issues where something got into an unstable state that didn't seem to resolve itself. Shutting down tinc on all hosts and restarting seemed to do the trick, but I'd like to see if there is something that I can

Is there any way to disable the authentication agent globally? I'm not quite sure I understand it's purpose. Here is some background info: workstation: Key pair (dsa). host1: No key pair. No authorized_keys. host2: Has my workstation's key in authorized_keys. I ssh to host1 from my workstation. I ssh to host2 from host1. I am asked for a password. Good. I ssh to host2 from my

# cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) # uname -r 3.10.0-123.20.1.el7.x86_64 Hi, We use iSCSI over a 10G Ethernet Adapter and SRP over an Infiniband adapter to provide multipathing to our storage: # lspci | grep 10-Gigabit 81:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01) 81:00.1 Ethernet controller: Intel Corporation

Hi rsync devs and users, I want to use rsync to synchronize home directories on two PCs. It works fine if I start rsync after working on a host each time I leave. But instead of operating modes "host1 -> host2" and "host2 -> host1" I would like to have a mode "host1 <-> host2" to allow synchronizing at any time -> Scenario: - on host1 files A,B have

Hi, I would like to use the NFSv4 ability to create a "root" filesystem with fsid=0, so that I don't have to refer to the whole path of the exported filesystem when I mount it. However I do *not* want this root filesystem to be mountable by any host. Is that possible and how? E.g Filesystem: /exports/data1 /exports/data2 /exports/data3 /etc/exports: /exports

When using the host type in a manifest, aliases for hosts not managed by puppet are removed. # cat /etc/hosts 192.168.1.1 host1.example.com host1 # cat /tmp/host.pp host { "host2.example.com": ip => "192.168.1.2", alias => host2, ensure => present; } # puppet /tmp/host.pp dnsdomainname: Unknown host notice: //host=host2.example.com/ensure: created # cat

Hello Tinc list! I'm trying to set up a Tinc VPN between two KVM host machines so that a VM on one host can communicate with a VM on the other host. While I do have a good bit of experience with virtualization, I'm not a particularly savvy network guy, so this is proving to be a pretty big challenge. Requirements: * ALL VM network traffic must be secure. * VMs on one host must be

Hi, I tried to migrate qemu domains between same two Freescale PPC platforms. 1) Migrate test domain from Host1(10.193.20.109) to Host2(10.193.20.181). root at ppc-host1:~# virsh migrate test qemu+tls://10.193.20.181/system or root at ppc-host2:~# virsh -c qemu+tls://10.193.20.109/system migrate test qemu:///system I waited for a while and finally got error message as below: error: Unable to

Hi, I've noticed some ssh behaviour that I wish didn't happen. I was wondering if someone can explain how I can stop it from happening, or explain why it's unavoidable. If I ssh-with-agent-forwarding from one host to a second host, and on the second host use something like nohup/screen/tmux/daemon, and from within that new process session, start a long-running command via

hello list, I am attempting to sync two imap servers using the imapsync perl script. It seems handy and easy. Here's what happens when I try to do this: # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # -o smtpd_sasl_auth_enable=yes # -o

Hey everyone, Is anybody aware of a /true/ active/active multi-head and multi-target clustered iSCSI daemon? IE: Server 1: Hostname: host1.test.com IP Address: 10.0.0.1 Server 2: Hostname: host2.test.com IP Address: 10.0.0.2 Then they would utilize a CLVM disk between them, let's call that VG "disk" and then directly map each LUN (1,2,3,4,etc) to LV's named 1,2,3,4,... and

Hi folks, I research at the moment a connection over fuse and samba for hadoop-cluster. Its my private playground, but I have some issues I can't figure out why they happen. I use RHEL5.7, packetlist: rpm -qa|grep samba samba-3.0.33-3.29.el5_7.4.x86_64 samba-common-3.0.33-3.29.el5_7.4.x86_64 2 servers, one provides samba-shares and one I use as client. Samba-Server (HOST2): FuseFS:

Hello Guys, i'm new to rsync.. and i have a request to fix some things(not related to rsync)... and i could not find and good-for-me examples on the net.. here is the deal: we have an ant-script.. that uses rsync to update our server's files.. i.e. patch-script and request is.. to save files, that are updated... and when the patch-script is run again (like, the same one)

Hi all, Here is my setup: Host1 ---> Router ----> Host2 When i run ttcp -t on Host1 while ttcp -r in Host2, the bandwidth that i can get is about 860 Kbytes/s, which is less than 7Mbps. But i am using NIC 10Mbps for all machines. Why is that so? Currently, i am experimenting with the example efcbq. I am using MGEN (a UDP traffic generator) to send 2 flows of traffic (EF and

Hello, I have a stupid problem with scp and I can't find where it comes from. I am running 3 machines here with RedHat 7.3, RedHat 8 and RedHat 9. The 3 of them have openssh-3.7.1p2 (built from the SRPMS found on the openssh web site). I have though a problem to run a command of the type 'scp host1:file1 host2:file2' (my ssh being correctly setup): [ted at papeete ~]$ scp

Hello list, In my dovecot-ldap.ext I have: uris = ldaps://host1 ldaps://host2 ldaps://host2 Today host1 hangs and new connections can't be established with mail server. Connected users worked fine (auth_cache_size = 5 k auth_cache_ttl = 15 mins). At this time - host2 and host3 are working fine, but switching to them was not happen. Why ? In logs I got: Feb 09 10:20:36 imap-login: Error:

I have legitimate ssh access to two remote machines. ssh directly from either machine to the other is blocked by firewalls which I cannot control. $ rsync -vae ssh user@host1:/tmp/dir user@host2:/tmp/ receiving file list ... done rsync: mkdir user@host2:/tmp: No such file or directory rsync error: error in file IO (code 11) at main.c(319) I would like this to copy host1:/tmp/dir into