search for: tunel

Buenas tardes, Necesito obtener informaci?n de la cantidad de tuneles ssh que puede tener activo un servidor y adem?s por cuanto tiempo pueden permanecer activos estos tuneles. Explico mi situaci?n, tengo un servidor centos 5.5, con sistema ssh que viene por defecto la versi?n 4.3. A este servidor se conectan alrededor de 100 terminales, cada uno de estos terminale...

Hello, I use libvirt on machines without shared storage. My VM's have all one qcow2-disk, with the same name as the VM. When I want to migrate a VM, I check if there is an qcow2 image on the other host with that name. When that's not the case, I copy the image using rsync first. If the image excist, I don't do that, and I think that "--copy-storage-inc" will do it. But I

...h0 and dest somewhere in the internet, and are only acks (i also see nated trafic), why???? ill start with some confs and at the end some descoveryes: so a "ip rule" looks like: 0: from all lookup local 32516: from 192.168.40.0/24 lookup metro 32517: from 192.168.40.254 lookup tunel 32518: from 192.168.40.253 lookup tunel .......... 32765: from 192.168.40.2 lookup tunel 32766: from all lookup main 32767: from all lookup default an ip route list table metro have entres like: 84...0/17 via 193. dev eth0 an ip route list table tunel its only a default default via 10.0.1.1...

.... I use LVM > inside the VM's, and it's possible that I have changed the size of a > volume for example. Non shared storage migration preserves the guest visible state. > > My questions: > Is "--copy-storage-inc" intelligent enough for such tasks? If used with --tunelled you can only use it if you wish to migrate ALL disks in such a VM and need to pre-create the correct files. If you wish to migrate only certain disks you need to stop using --tunelled. > Is there documentation what is done during migration? Is it using rsync? Normally (if --tunneled is not...

...2=192.168.1.64 network and 192.168.1.95 broadcast) I have bidirectional ping between to/from any station located in my LANS. All stations from LAN1 and LAN2 are WindowsXP(SP2) and has firewall disabled. Booth Routers (A and B - RHEL 3.0) has samba installed and Router A is used as VPN server (tunel address 10.1.0.1) and RouterB is used as VPN client (tunel address 10.1.0.2). Here comes my smb.conf file from RouterA which i want to be used as WINS server by all my windows clients: [global] workgroup = LAN1 netbios name = router-LAN1 server string = Samba interfaces = 192.168.1.49/28 192...

Hi, In a setup where OpenVSwitch is used with GRE tunels on top of an interface provided by tinc, I'm experiencing significant performance degradation problems (from 100Mb/s down to 1Mb/s in the worst case) and I'm not sure how to fix this. The manifestation of the problem is, from the user point of view, iperf reports ~100Mb/s and rsync reports...

How is tunnelled option specified during migratiion different than an ordinary ssh connection specified as:- virsh migrate vmName qemu+ssh://user@remotesys/system?

...tap src 10.255.255.1 192.168.0.0/16 via 10.255.255.2 10.2.3.0/24 via 10.255.255.3 ... This requires some fairly simple processing: L2 packets coming from the kernel (filled with the SRC MAC address from the interface and DST MAC address resolved with ARP), using the DST MAC address to know which tunel to send to. L3 packets coming from the tunel would be expanded into a L2 packet (with the SRC MAC = the tunel virtual MAC Address, DST MAC = local interface MAC address, and ether type = ipv4 or ipv6) Doing something like this would transform tinc from a canned limited use software into an extre...

Salutations, I was recently using openssh 6.8p1-3 for socks tunelling with a public wifi hotspot. I attempted to watch youtube but was notified that it was not allowed in my area. The socks server I was connected to definitely had the ability to connect to youtube, so I concluded the issue was with the public wifi hotspot. How much does socks tunneling with o...

[Disclaimer : I'm not a network engineer] Hi, In a setup where OpenVSwitch is used with GRE tunels on top of an interface provided by tinc, I'm experiencing MTU problems and I'm not sure how to fix them. The manifestation of the problem is, from the user point of view, communication hang. And using "tcpdump -i there" displays lines such as : 18:54:00.345666 IP 10.111.1.1...

...of migration > > failed: Invalid argument > > > > This is both with UEFI and BIOS guests. > > The migration of storage using the qemu migration stream is not > supported by qemu when -blockdev is used. Since we can only transport > one stream when migrating with '-tunelled', it's no longer possible to > combine those two. Unfortunately automagic block migration was deemed a > legacy feature. > > > > I understand that newer ways of migrating non shared disks is via NBD > > directly with QEMU, however I am certain > > that this...

What is the cause for such a message while running kernel 2.6.1 on RH9 ? Neighbour table overflow. NET: 282 messages suppressed. Neighbour table overflow. Alex Iruc _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

...to reduce > the amount of log spam you have to dig through when monitoring your > system's behavior. Everything that appears in your logs should be > *interesting*. Constant port knocking from worms and script kiddies is > not interesting. > > In case you've not done ssh tunelling, Anne, the command that does what > you want, having done all the above is: > > $ ssh -p22022 -L10143:my.server.com:143 anne at my.server.com > > This sets up port 10143 on the local system to be redirected through the > ssh session to the IMAP port on your home server. You...

Hey all, With libvirt 6.5.0 and qemu 5.1.0 migration of non shared disks in tunneled mode does not work for me: virsh # migrate alpinelinux3.8 qemu+tls://ratchet.lan/system --live --persistent --undefinesource --copy-storage-all --tunneled --p2p error: internal error: qemu unexpectedly closed the monitor: Receiving block device images Error unknown block device 2020-08-15T21:21:48.995016Z

On 22.03.2016 10:28, nidhi d wrote: > How is tunnelled option specified during migratiion different than an > ordinary ssh connection specified as:- virsh migrate vmName > qemu+ssh://user@remotesys/system? > > virsh migrate --tunelled ... Michal

....995193Z qemu-system-x86_64: load of migration > failed: Invalid argument > > This is both with UEFI and BIOS guests. The migration of storage using the qemu migration stream is not supported by qemu when -blockdev is used. Since we can only transport one stream when migrating with '-tunelled', it's no longer possible to combine those two. Unfortunately automagic block migration was deemed a legacy feature. > I understand that newer ways of migrating non shared disks is via NBD > directly with QEMU, however I am certain > that this used to work before libvirt 6.0....

...at.com> wrote: > On 22.03.2016 10:28, nidhi d wrote: > > How is tunnelled option specified during migratiion different than an > > ordinary ssh connection specified as:- virsh migrate vmName > > qemu+ssh://user@remotesys/system? > > > > > > virsh migrate --tunelled ... > > Michal > >

This is a question I posted to the RHEL3 mailing list but didn't get a response: "We are currently running squid-2.5.STABLE3-6.3E.9 on one of our RHEL3 proxy servers because updating to the latest (squid-2.5.STABLE3-6.3E.14) seems to break any kind of tunelling, ie. things like instant messaging ports and ssh using proxytunnel (http://proxytunnel.sourceforge.net/). Has anyone else experienced this problem with the Squid updates from RHN?" I was wondering if anyone running Centos has any advice/info on this? -- Tim Edwards

...ny HOW-TO type documentation. I am administering a site with a remote location connected primarily via a cipe tunnel over a SHDSL connection. We also have a direct PSTN connection between the sites. Seeing as phone calls here are not timed I plan to keep the PSTN connection alive even when the cipe tunel is active. I am looking for information as to the best way to set up this network, so that if the cipe connection goes down all traffic is automatically routed over the ppp connection, and when the cipe connection comes back up the traffic is once again routed via the cipe connection. We currently...

...C++, SQL, PHP, Perl, Shell. Database: MySQL Server Software: BIND(DNS), Apache(http+ssl), EXIM(smtp), POP3d, ProFTP, FireWall & etc. Network/Communication: TCP/IP, RIP, OSPF, IPSec,Tunelling,VPN, DHCP. ? Maintenance multi processor servers. ? Maintenance virtual hosting server (web & mail server). ? Accident prevention Servers and local network. ? Backup/Restore management. ? Router & Firewall administration for Internet connection. ? Creating & Maintaining traffic cou...