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  • Configuring VLAN's on two HP procurve switches

    - by pan
    Trying to route a new ISP (Microwave link) from one of my out buildings to my computer room and hence my firewall. Old ISP came direct into firewall. In the outbuilding the Microwave modem connects with cat5 to HP Procurve 2524 switch. Because this ISP is coming through my internal network, I plan on using a new vlan called "airspeed" only for this ISP traffic. Up until now I've just been using the Default_vlan on both HP switches (4108 + 2524). So far I've been unable to ping from my laptop to the ISP modem both of which are on the new vlan 2 ("Airspeed"). No traffic needs to cross from vlan 2 to vlan 1 so I've left the ports as untagged. I've used the subnet provide from my ISP as the new vlan 2 subnet. Can anybody see what I'm doing wrong here? I've added the configuration of both switch below. Rough diagram: Microwave modem (Gateway IP 77.75.00.49) | HP 2524 switch (port 24) | HP 2524 switch fibre link | HP 4108GL switch fibre link | HP 4108GL switch (port D1) | Laptop configured with IP 77.75.00.50 (for testing but will be connected to firewall) And my 4108GL config: ; J4865A Configuration Editor; Created on release #G.07.21 hostname "HP ProCurve Switch 4108GL" cdp run module 1 type J4864A module 2 type J4862B module 3 type J4862B module 4 type J4862B ip default-gateway 128.1.146.50 snmp-server community "public" Unrestricted snmp-server host 128.1.146.51 "public" Not-INFO snmp-server host 128.1.146.38 "public" vlan 1 name "DEFAULT_VLAN" untagged A1-A3,B1-B24,C1-C24,D2-D24 ip address 128.1.146.203 255.255.0.0 no untagged D1 exit vlan 2 name "Airspeed" untagged D1 ip address 77.75.00.51 255.255.255.248 exit Finally my 2524 config: ; J4813A Configuration Editor; Created on release #F.04.08 hostname "HP ProCurve Switch 2524" cdp run ip default-gateway 0.0.0.0 snmp-server community "public" Unrestricted snmp-server host 128.1.146.51 "public" Not-INFO snmp-server host 128.1.146.51 "public" snmp-server host 128.1.146.38 "public" vlan 1 name "DEFAULT_VLAN" untagged 1-23,25-26 no untagged 24 ip address 128.1.146.204 255.255.0.0 exit vlan 2 name "Airspeed" untagged 24 ip address 77.75.00.51 255.255.255.248 exit no aaa port-access authenticator active

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  • How do I add a broadcast IP to the loopback interface under os/x using ifconfig when my machine has no network?

    - by bandodeotarios
    I'm new to advanced network administration and I would like to do some testing with UDP broadcasting, so I need a broadcast address on my loopback interface. The machine is offline, in other words, there is no network. How can I accomplish that through ifconfig without having to buy a switch as one user in the comments suggested. In Linux all i have to do is use 127.255.255.255 and broadcasts work fine without any network or any switch. If I have a network i can just use 255.255.255.255, obviously.

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  • Installed mountain lion, getting a python virtual env error?

    - by user27449
    I recently installed mountain lion (10.8) and when I open up my terminal I get this message: Traceback (most recent call last): File "<string>", line 1, in <module> ImportError: No module named virtualenvwrapper.hook_loader virtualenvwrapper.sh: There was a problem running the initialization hooks. If Python could not import the module virtualenvwrapper.hook_loader, check that virtualenv has been installed for VIRTUALENVWRAPPER_PYTHON=/usr/bin/python and that PATH is set properly. Before I try and fix this, I was hoping someone could guide me as I haven't touched python in a while and I don't want to mess up this installation.

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  • Is Linux Virtual Server old, or is it standing still?

    - by Vimvq1987
    Based on this question: http://serverfault.com/questions/124905/widely-used-load-balancing-solutions, LVS may be the right solution for my problem. But when I went to its homepage http://www.linuxvirtualserver.org/, I found that LVS has been updated since Nov, 2008. The world's moving fast, and I don't know if LVS was obsolete or not. Is LVS standing still, or there're some better solutions to replace it? Thank you so much.

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  • How do I make a VMDK format virtual hard drive from a physical partition on a disk?

    - by Ahmad
    I have a 320 GB HDD, which actually only has an 80 GB NTFS format partition which was being used by a Windows 7 system ... I want to create a VMDK format clone of this partition, so that I can use it with VMware .. However, tradition VMDK creation programs normally make a VMDK for an entire disk, whereas I just want to make a VMDK for the one 80 GB partition ... This is important because the other 240 GB on the physical source HDD is just unallocated area, and including that in a VMDK file is just a plain waste of space .. So how to make a VMDK file for a specific partition ? Any tool available for this ?

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  • Setting up a Windows Server 2008 R2 DC + Fileserver : native or virtual?

    - by user126890
    I want to deploy a new DC + Fileserver using Windows Server 2008 R2 SP1 Standard Edition on a Dell PowerEdge R410 and iSCSI storage for a small business (~30 people). Should I install the system native on the server or use a virt layer? I don't have a budget for virtualization so i gotta go with something free... What's a better working routine, taking snapshots of vm's or taking backups (Acronis/CloneZilla) of systems? If I use a virt system, I need a GUI for some people in the business to reset the system to a earlier state in emergency situations. I wanted to install phpVirtualBox once but never finished, is it suitable in a productive environment? server specs: Intel Xeon E5620 CPU (2,40GHz, 4C, 12MB Cache) 8GB RAM Dual Rank LV RDIMMs 1333MHz 2x 1TB SATA 7,2K 3,5, RAID1

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  • Audit success in event log from not administrator IP - is that immediately a hack success indicator?

    - by Valentin Kuzub
    I checked event log today and between mass of failed audit events I found some successes which originated from not my country. However they look a little weird and no process is specified, while when I logon using RDP it says winlogon.exe I am wondering whether that means my system was compromised or there are good variants and it doesnt mean its all that bad. I am using a VPS solution if thats useful.

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  • Open ports broken from internal network

    - by ksvi
    Quick summary: Forwarded port works from the outside world, but from the internal network using the external IP the connection is refused. This is a simplified situation to make the explanation easier: I have a computer that is running a service on port 12345. This computer has an internal IP 192.168.1.100 and is connected directly to a modem/router which has internal IP 192.168.1.1 and external (public, static) IP 1.2.3.4. (The router is TP-LINK TD-w8960N) I have set up port forwarding (virtual server) at port 12345 to go to port 12345 at 192.168.1.100. If I run telnet 192.168.1.100 12345 from the same computer everything works. But running telnet 1.2.3.4 12345 says connection refused. If I do this on another computer (on the same internal network, connected to the router) the same thing happens. This would seem like the port forwarding is not working. However... If I run a online port checking service on my external IP and the service port it says the port is open and I can see the remote server connecting and immediately closing connection. And using another computer that is connected to the internet using a mobile connection I can also use telnet 1.2.3.4 12345 and I get a working connection. So the port forwarding seems to be working, however using external IP from the internal network doesn't. I have no idea what can be causing this, since another setup very much like this (different router) works for me. I can access a service running on a server from inside the network both through the internal and external IP. Note: I know I could just use the internal IP inside of the network to access this service. But if I have a laptop that must be able to do this both from inside and outside it would be annoying to constantly switch between 1.2.3.4 and 192.168.1.100 in the software configuration. Router output: > iptables -t nat -L -n Chain PREROUTING (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 224.0.0.0/3 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:25 to:192.168.1.101 DNAT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:25 to:192.168.1.101 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:110 to:192.168.1.101 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:12345 to:192.168.1.102 DNAT udp -- 0.0.0.0/0 192.168.1.1 udp dpt:53 to:217.118.96.203 Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 192.168.1.0/24 0.0.0.0/0 Chain OUTPUT (policy ACCEPT) target prot opt source destination

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  • IKE Phase 1 Aggressive Mode exchange does not complete

    - by Isaac Sutherland
    I've configured a 3G IP Gateway of mine to connect using IKE Phase 1 Aggressive Mode with PSK to my openswan installation running on Ubuntu server 12.04. I've configured openswan as follows: /etc/ipsec.conf: version 2.0 config setup nat_traversal=yes virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12 oe=off protostack=netkey conn net-to-net authby=secret left=192.168.0.11 [email protected] leftsubnet=10.1.0.0/16 leftsourceip=10.1.0.1 right=%any [email protected] rightsubnet=192.168.127.0/24 rightsourceip=192.168.127.254 aggrmode=yes ike=aes128-md5;modp1536 auto=add /etc/ipsec.secrets: @left.paxcoda.com @right.paxcoda.com: PSK "testpassword" Note that both left and right are NAT'd, with dynamic public IP's. My left ISP gives my router a public IP, but my right ISP gives me a shared dynamic public IP and dynamic private IP. I have dynamic dns for the public ip on the left side. Here is what I see when I sniff the ISAKMP protocol: 21:17:31.228715 IP (tos 0x0, ttl 235, id 43639, offset 0, flags [none], proto UDP (17), length 437) 74.198.87.93.49604 > 192.168.0.11.isakmp: [udp sum ok] isakmp 1.0 msgid 00000000 cookie da31a7896e2a1958->0000000000000000: phase 1 I agg: (sa: doi=ipsec situation=identity (p: #1 protoid=isakmp transform=1 (t: #1 id=ike (type=enc value=aes)(type=keylen value=0080)(type=hash value=md5)(type=auth value=preshared)(type=group desc value=modp1536)(type=lifetype value=sec)(type=lifeduration len=4 value=00015180)))) (ke: key len=192) (nonce: n len=16 data=(da31a7896e2a19582b33...0000001462b01880674b3739630ca7558cec8a89)) (id: idtype=FQDN protoid=0 port=0 len=17 right.paxcoda.com) (vid: len=16) (vid: len=16) (vid: len=16) (vid: len=16) 21:17:31.236720 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 456) 192.168.0.11.isakmp > 74.198.87.93.49604: [bad udp cksum 0x649c -> 0xcd2f!] isakmp 1.0 msgid 00000000 cookie da31a7896e2a1958->5b9776d4ea8b61b7: phase 1 R agg: (sa: doi=ipsec situation=identity (p: #1 protoid=isakmp transform=1 (t: #1 id=ike (type=enc value=aes)(type=keylen value=0080)(type=hash value=md5)(type=auth value=preshared)(type=group desc value=modp1536)(type=lifetype value=sec)(type=lifeduration len=4 value=00015180)))) (ke: key len=192) (nonce: n len=16 data=(32ccefcb793afb368975...000000144a131c81070358455c5728f20e95452f)) (id: idtype=FQDN protoid=0 port=0 len=16 left.paxcoda.com) (hash: len=16) (vid: len=16) (pay20) (pay20) (vid: len=16) However, my 3G Gateway (on the right) doesn't respond, and I don't know why. I think left's response is indeed getting through to my gateway, because in another question, I was trying to set up a similar scenario with Main Mode IKE, and in that case it looks as though at least one of the three 2-way main mode exchanges succeeded. What other explanation for the failure is there? (The 3G Gateway I'm using on the right is a Moxa G3150, by the way.)

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  • Is it possible to do DNS-based ACLs on a Cisco ASA?

    - by pickles
    Short of using static IP addresses, is it possible to have a Cisco ASA use a DNS name rather than an IP address? For instance, if I want to limit a host in the DMZ to access only one particular web service, but that web service might be globally load balanced or using DynDNS or cloud, how can the ACL be expressed so that a fixed IP address isn't used and the admin doesn't have to keep opening and closing down IP addresses?

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  • DNS entries for OCS 2007 R2 basic deploy

    - by Anero
    I'm doing a test deploy on a Lab with 3 VMs: TEST-DC: DC / DHCP / DNS / Root CA (Joined to TEST.AD Domain) TEST-CS: OCS Front End (Joined to TEST.AD Domain - IP: 10.0.128.1) TEST-EDGES: OCS Edge Server (Joined to Workgroup: EDGE-WKG - Internal IP: 10.0.128.3, External IPs: 192.168.129.12 - Access Edge Server, 192.168.129.13 - Web Conferencing, 192.168.129.14 - A/V) I can login with the Communicator Client from within computers in the domain (using [email protected]) and even the Automatic Sign-In works as expected. Nevertheless, I cannot login neither from within machines in the domain nor from outside the domain using [email protected]. I'm pretty sure it is a DNS related issue, so I'm including below a list of the entries. DNS Entries on TEST-DC: Forward Lookup Zones TEST.AD sip.test.ad (Host A). IP Address: 10.0.128.1 sipinternal.test.ad (Host A). IP Address: 10.0.128.1 sipexternal.test.ad (Host A). IP Address: 10.0.128.3 _sipinternaltls._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipinternal.test.ad _sipinternal._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipinternal.test.ad _sip._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipexternal.test.ad _sipfederationtls._tcp.test.ad (Service Location SRV). Port: 5061. Host: sipexternal.test.ad _sip._tls.test.ad (Service Location SRV). Port: 443. Host: sipexternal.test.ad TEST.COM sip.test.com (Host A). IP Address: 10.0.128.1 sipinternal.test.com (Host A). IP Address: 10.0.128.1 sipexternal.test.com (Host A). IP Address: 10.0.128.3 _sipinternaltls._tcp.test.com (Service Location SRV). Port: 5061. Host: sipinternal.test.com _sipinternal._tcp.test.com (Service Location SRV). Port: 5061. Host: sipinternal.test.com _sip._tcp.test.com (Service Location SRV). Port: 5061. Host: sipexternal.test.com _sip._tls.test.ad (Service Location SRV). Port: 443. Host: sipexternal.test.ad Validation Errors OCS Front End Edge Server I ran the OCS 2007 Automatic Sign-In Troubleshooting and all DNS entries for both TEST.AD and TEST.COM are reported to be OK. What am I missing?

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  • AWS EC2 instance not pingable or available in browser

    - by Slimmons
    I've seen this questions asked other places, but now I've run through every fix proposed in other questions so I'm re asking it here, in hopes that someone will have a different solution. Problem: I have a EC2 instance, and I can ssh into it and work on it, and I have a Elastic ip set to it. I am unable to ping this machine, or log in to it using my browser. Solutions mentioned and tried: service httpd start i. response I get is "unrecognized service" ii. when I run apache2ctl -k start, it shows "httpd already running", so I'm assuming httpd is not the problem, it's just possibly named something else because of apache2, or for whatever reason. I went into EC2-Security Group- Default (which is the one I used.)-inbound, and everything there is set up correctly (I'm assuming). There it shows 80(HTTP) 0.0.0.0/0. 443(HTTPS) 0.0.0.0/0, and various other servies with their ports and 0.0.0.0/0 next to them. I also enabled a rule for enabling ICMP Request All on 0.0.0.0/0 temporarily for testing purposes I've tried disabling the iptables with "service ufw stop" Just in case I'm doing something really stupid, because I'm not all that used to connecting to web servers that I've spun up, I'm typing in the address to the machine into the url like this (assuming my ip address was ip.address). i. http:/(slash)ip.address/ ii. ip.address iii. https:/(slash)ip.address/ iv. ip.address/webFolderName/ v. http:/(slash)ip.address/webFolderName/ None of the attempts worked, and the only thing I haven't tried that i've seen is to start wireshark on the machine, and see if the requests are reaching it, and it's just ignoring them. I'm not sure I want to do that yet, since A). I'm not 100% positive how to use wireshark without the gui, since it's the only way I've ever used it (I really should get used to it in terminal, but I didn't even know you could). B). It really seems like I'm missing something simple in getting this to work. Thanks in advance for any help.

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  • Is it generally a bad idea to have other types of virtual appliances installed along side a firewall

    - by MGSoto
    I want to run my Firewall/NAT software (pfsense) and an internal NAS (looking at freenas right now) for my SOHO on one machine. Right now I have them separated on two different machines, but I'd like to consolidate them. Is this generally a bad idea? I see the security concern where if the firewall or host OS is compromised, then your data is essentially screwed. But is it really a concern for me?

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  • VirtualBox: Host OS processor is spiked while guest OS virtual processor is idle?

    - by Greg Mattes
    I'm running Windows XP 32-bit on Windows Vista 64-bit with VirtualBox 3.0.6. Whenever I run the XP VM, Vista (host) reports 100% cpu utilization even though XP (guest) reports between 1-5% cpu utilization. The host box has 2 GB of physical RAM. The guest/vm is configured with 512 MB. The host box has a 64-bit AMD processor. No apps (other than VirtualBox) are running on either host, they're just idling. Any guesses as to why the host processor is spiked? I've enabled various advanced features for the XP guest in the hopes of having better performance: Settings → System → Motherboard: Enable IO APIC Settings → System → Processor: Enable PAE/NX Settings → System → Acceleration: Enable VT-x/AMD-V and Enable Nesting Paging

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  • Linux static dhcp ip for visitor access internet without requesting MAC address?

    - by ???
    Currently, my company internet access for visitor are required to request MAC address from them if they want to access to internet. Can we do something like the Hotel wifi? they just access to the network and just key in the password, then they are able to access the internet for certain time of period. so far, i have looking for linux solution, but they are no such program/application available. do you all have any experience on it? Regards, MH

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  • How do I make ESXi 5.0 to shutdown virtual machines when the physical power button is pushed?

    - by Pawel Sawicki
    I have a home NAS/DLNA server built out of an HP Micro Server with the HP branded VMware ESXi 5.0.0 build-623860 (free license) installed. Being a home media center I'd like it to be "manageable" by all my household members. This requires that it needs to be powered on an off (including all the VMs inside) by anybody with the physical access to the server by simply pressing the power button on the chassis. The "startup" part is easy to obtain - all I had to do was to configure the startup/shutdown policy: Once the server powers up, all VMs start as well and that's exactly what I need. Well.. it did work up until 5.0.0U1, but that's a different story: http://blogs.vmware.com/vsphere/2012/03/free-esxi-hypervisor-auto-start-breaks-with-50-update-1.html Unfortunately, pressing the power button doesn't gracefully shutdown the guest machines - they are terminated instead. If I run the "shut down" command from the vSphere Client interface guests are powered off. I'd like to get the same end result when the physical power button is switched. I've poked around a bit on the ESXi server. There's a "/sbin/shutdown.sh" script that seemed to do exactly what I need... but after trying it does exactly what the power off button. The "/etc/inittab" contains an entry for the "shutdown" level but I suppose it's not hooked to the power button. I can't find any acpi related configuration, neither do I know what exactly is executed when the power button is pressed. Does anybody have a clue how can I make the VMs shutdown automatically when the physical power switch is pressed to turn of the computer?

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  • Why won't dhclient use the static IP I'm telling it to request?

    - by mike
    Here's my /etc/dhcp3/dhclient.conf: request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, domain-search, host-name, netbios-name-servers, netbios-scope, interface-mtu; timeout 60; reject 192.168.1.27; alias { interface "eth0"; fixed-address 192.168.1.222; } lease { interface "eth0"; fixed-address 192.168.1.222; option subnet-mask 255.255.255.0; option broadcast-address 255.255.255.255; option routers 192.168.1.254; option domain-name-servers 192.168.1.254; } When I run "dhclient eth0", I get this: There is already a pid file /var/run/dhclient.pid with pid 6511 killed old client process, removed PID file Internet Systems Consortium DHCP Client V3.1.1 Copyright 2004-2008 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ wmaster0: unknown hardware address type 801 wmaster0: unknown hardware address type 801 Listening on LPF/eth0/00:1c:25:97:82:20 Sending on LPF/eth0/00:1c:25:97:82:20 Sending on Socket/fallback DHCPREQUEST of 192.168.1.27 on eth0 to 255.255.255.255 port 67 DHCPACK of 192.168.1.27 from 192.168.1.254 bound to 192.168.1.27 -- renewal in 1468 seconds. I used strace to make sure that dhclient really is reading that conf file. Why isn't it paying attention to my "reject 192.168.1.27" and "fixed-address 192.168.1.222" lines?

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  • Does Ubuntu 12.04.1 come with everything I need for using virtual servers and are the tools efficient?

    - by orokusaki
    I noticed that Ubuntu 12.04.1 comes with Xen, OpenStack, KVM and other virtualization-related tools. I have used VMWare in the past. If I was to use Xen for visualization, would I see considerable performance lost, since Xen is run on the host OS? Is it even run on the host OS, or is it like VMWare where it's installed below any Linux OS on the machine (embedded, I guess is the word)? Do you have any recommendations on what sort of set up to use with these built-in tools? I have 2 physical servers, side-by-side. Each will need a VM used for Postgres and a VM used as an app server. One will be a failover for the other.

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  • How to host multiple RRAS in same network?

    - by Vijay
    i have hosted w2003 RRAS in my network succesfully ( Natting with one public IP ) i need to host another RRAS setup same like above with different private IP address and public IP's,. when i configured so, both w2003 servers got frozen and internet not working. sometimes the gateway is same for both the servers. How can i host 2 RRAS in the same network, i am using RRAS to limit bandwidth for computers running private ip's through bandwithcontroller software.

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  • Oracle on windows cluster with online/offline IPs

    - by yzador
    I have a windows cluster (on windows 2008 server) with nodes in different subnets. So cluster has two IPs, one for each node (I'm talking not about node IP, but about cluster IP). One is online, the other is offline. Is it possible to run Oracle Fail Safe on this configuration? I've tried to install it, but it gives me the following error when trying to verify group or add database to group: FS-10220: Network name maps to IP address in the cluster resource but maps to IP address on the system

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  • Possible to use LVM partitions inside a vmbuilder created KVM virtual machine?

    - by Tauren
    I have an Ubuntu 9.10 host system with LVM partitions running KVM. I've been creating VMs using vmbuilder using LVM partitions for each VM instead of files for the VMs. When I configure a VM using vmbuilder --part, the partitions in the file I'm using are created as regular partitions (sda1, sda2, etc.). What I'd like to do is use LVM inside of the VM in case I need to resize the partitions at some point. But I don't see any options for doing that using the vmbuilder tool. It seems like this might be a common request to avoid using kpartx, etc. Is there something I'm missing, or is this just not possible with vmbuilder?

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