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  • Setting up a VPN connection to Amazon VPC - routing

    - by Keeno
    I am having some real issues setting up a VPN between out office and AWS VPC. The "tunnels" appear to be up, however I don't know if they are configured correctly. The device I am using is a Netgear VPN Firewall - FVS336GV2 If you see in the attached config downloaded from VPC (#3 Tunnel Interface Configuration), it gives me some "inside" addresses for the tunnel. When setting up the IPsec tunnels do I use the inside tunnel IP's (e.g. 169.254.254.2/30) or do I use my internal network subnet (10.1.1.0/24) I have tried both, when I tried the local network (10.1.1.x) the tracert stops at the router. When I tried with the "inside" ips, the tracert to the amazon VPC (10.0.0.x) goes out over the internet. this all leads me to the next question, for this router, how do I set up stage #4, the static next hop? What are these seemingly random "inside" addresses and where did amazon generate them from? 169.254.254.x seems odd? With a device like this, is the VPN behind the firewall? I have tweaked any IP addresses below so that they are not "real". I am fully aware, this is probably badly worded. Please if there is any further info/screenshots that will help, let me know. Amazon Web Services Virtual Private Cloud IPSec Tunnel #1 ================================================================================ #1: Internet Key Exchange Configuration Configure the IKE SA as follows - Authentication Method : Pre-Shared Key - Pre-Shared Key : --- - Authentication Algorithm : sha1 - Encryption Algorithm : aes-128-cbc - Lifetime : 28800 seconds - Phase 1 Negotiation Mode : main - Perfect Forward Secrecy : Diffie-Hellman Group 2 #2: IPSec Configuration Configure the IPSec SA as follows: - Protocol : esp - Authentication Algorithm : hmac-sha1-96 - Encryption Algorithm : aes-128-cbc - Lifetime : 3600 seconds - Mode : tunnel - Perfect Forward Secrecy : Diffie-Hellman Group 2 IPSec Dead Peer Detection (DPD) will be enabled on the AWS Endpoint. We recommend configuring DPD on your endpoint as follows: - DPD Interval : 10 - DPD Retries : 3 IPSec ESP (Encapsulating Security Payload) inserts additional headers to transmit packets. These headers require additional space, which reduces the amount of space available to transmit application data. To limit the impact of this behavior, we recommend the following configuration on your Customer Gateway: - TCP MSS Adjustment : 1387 bytes - Clear Don't Fragment Bit : enabled - Fragmentation : Before encryption #3: Tunnel Interface Configuration Your Customer Gateway must be configured with a tunnel interface that is associated with the IPSec tunnel. All traffic transmitted to the tunnel interface is encrypted and transmitted to the Virtual Private Gateway. The Customer Gateway and Virtual Private Gateway each have two addresses that relate to this IPSec tunnel. Each contains an outside address, upon which encrypted traffic is exchanged. Each also contain an inside address associated with the tunnel interface. The Customer Gateway outside IP address was provided when the Customer Gateway was created. Changing the IP address requires the creation of a new Customer Gateway. The Customer Gateway inside IP address should be configured on your tunnel interface. Outside IP Addresses: - Customer Gateway : 217.33.22.33 - Virtual Private Gateway : 87.222.33.42 Inside IP Addresses - Customer Gateway : 169.254.254.2/30 - Virtual Private Gateway : 169.254.254.1/30 Configure your tunnel to fragment at the optimal size: - Tunnel interface MTU : 1436 bytes #4: Static Routing Configuration: To route traffic between your internal network and your VPC, you will need a static route added to your router. Static Route Configuration Options: - Next hop : 169.254.254.1 You should add static routes towards your internal network on the VGW. The VGW will then send traffic towards your internal network over the tunnels. IPSec Tunnel #2 ================================================================================ #1: Internet Key Exchange Configuration Configure the IKE SA as follows - Authentication Method : Pre-Shared Key - Pre-Shared Key : --- - Authentication Algorithm : sha1 - Encryption Algorithm : aes-128-cbc - Lifetime : 28800 seconds - Phase 1 Negotiation Mode : main - Perfect Forward Secrecy : Diffie-Hellman Group 2 #2: IPSec Configuration Configure the IPSec SA as follows: - Protocol : esp - Authentication Algorithm : hmac-sha1-96 - Encryption Algorithm : aes-128-cbc - Lifetime : 3600 seconds - Mode : tunnel - Perfect Forward Secrecy : Diffie-Hellman Group 2 IPSec Dead Peer Detection (DPD) will be enabled on the AWS Endpoint. We recommend configuring DPD on your endpoint as follows: - DPD Interval : 10 - DPD Retries : 3 IPSec ESP (Encapsulating Security Payload) inserts additional headers to transmit packets. These headers require additional space, which reduces the amount of space available to transmit application data. To limit the impact of this behavior, we recommend the following configuration on your Customer Gateway: - TCP MSS Adjustment : 1387 bytes - Clear Don't Fragment Bit : enabled - Fragmentation : Before encryption #3: Tunnel Interface Configuration Outside IP Addresses: - Customer Gateway : 217.33.22.33 - Virtual Private Gateway : 87.222.33.46 Inside IP Addresses - Customer Gateway : 169.254.254.6/30 - Virtual Private Gateway : 169.254.254.5/30 Configure your tunnel to fragment at the optimal size: - Tunnel interface MTU : 1436 bytes #4: Static Routing Configuration: Static Route Configuration Options: - Next hop : 169.254.254.5 You should add static routes towards your internal network on the VGW. The VGW will then send traffic towards your internal network over the tunnels. EDIT #1 After writing this post, I continued to fiddle and something started to work, just not very reliably. The local IPs to use when setting up the tunnels where indeed my network subnets. Which further confuses me over what these "inside" IP addresses are for. The problem is, results are not consistent what so ever. I can "sometimes" ping, I can "sometimes" RDP using the VPN. Sometimes, Tunnel 1 or Tunnel 2 can be up or down. When I came back into work today, Tunnel 1 was down, so I deleted it and re-created it from scratch. Now I cant ping anything, but Amazon AND the router are telling me tunnel 1/2 are fine. I guess the router/vpn hardware I have just isnt up to the job..... EDIT #2 Now Tunnel 1 is up, Tunnel 2 is down (I didn't change any settings) and I can ping/rdp again. EDIT #3 Screenshot of route table that the router has built up. Current state (tunnel 1 still up and going string, 2 is still down and wont re-connect)

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  • Cannot Connect to internet in windows 7 (No Internet Connection)

    - by user22062
    I have an airport express and Win 7 pro. My router is a Trendnet TEW-423PI G. The problem is everytime i try to connect it says it is unsuccessful and can't find ip address. I have tried everything. WPA2, WPA, WEP, Messing with the registry, Manually Inputting the ip address, Reinstalling drivers. I have two Macs that connect perfectly and are both running Snow Leopard that is why I am able to post this. What Should I do. I'm Going Crazy

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  • Cloudera Manager CDH5 - Installation Failure on Oozie Database

    - by Nerrve
    While doing the installation, i keep getting a failure on the step "Creating Oozie database" java.lang.Exception: DB schema exists at org.apache.oozie.tools.OozieDBCLI.validateDBSchema(OozieDBCLI.java:877) at org.apache.oozie.tools.OozieDBCLI.createDB(OozieDBCLI.java:184) at org.apache.oozie.tools.OozieDBCLI.run(OozieDBCLI.java:127) at org.apache.oozie.tools.OozieDBCLI.main(OozieDBCLI.java:78) How do i fix this? Where do i get the password/username/dbname for the PostgreSQL database to drop the existing schema? I tried cat /etc/cloudera-scm-server/db*.properties | grep pass and /var/lib/cloudera-scm-server-db/data/generated-password.txt but the passwords don't work!

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  • Cisco VPN Connection - No internet no nothing

    - by Kevin
    Hi all, Sorry if this has been posted, I tried searching but I am not exactly sure what I am looking for, I am a developer not a networking guy. We have a client whom we need to use Cisco VPN client to connect to their servers. I have installed the software, dropped in the provided .pcf file, and I can connect. However, when I do, I lose all local and internet capabilities, no hosts resolve, and I still can't connect to their internal FTP and development sites. This leads me to believe either a setting is wrong in my Cisco software, and/or their network is not correctly configured. Does anyone know anything about Cisco VPN'ing that can give me a hand? My colleague seems to indicate that they need to enable split tunneling on their end (or a similar setting).

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  • Wifi connection issues for Android with Linksys WRT54G

    - by Paul
    I have had this Linksys WRT54G for many years now, and it has always worked without a hassle. But for some reason I am unable to connect my brand new Android phone (Magic). The wireless network is broadcast and simply secured using WPA PSK TKIP. My phone sees the network (with excellent signal strength) and correctly asks me for the WPA password. Then when it tries to connect it stays for a while on "Retrieving address..." (liberately translated from Dutch) and finally fails reading "Remember, secured with WPA". Does anybody know how to solve this issue? edit: the android phone is genuine (not modified/rooted or whatsoever).

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  • csync2 ERROR: Connection to remote host failed

    - by Emil Salama
    I was unable to find any articles to answer this question, so my best bet was to post this here: Scenario We have 2x application servers in production hosting a PHP website and I would like some folders to be syncronized between the 2, the same was setup for the development environment with no issues, I've followed all instructions from the URL "http://www.cloudedify.com/synchronising-files-in-cloud-with-csync2/", I still seem to have the same result, firewall has been disabled on both boxes for troubeshooting purposes: Config Files: cysnc2.cfg nossl * *; group production { host server1; host server2; key /etc/csync-production-group.key; include /etc/httpd/sites-available; include /xxxxxx/public_html/files include /xxxxxxx/magento/media/catalog/product include /xxxxxxx/magento/media/brands exclude *.log; exclude /xxxx/public_html/file/cache; exclude /xxxxx/public_html/magento/var/cache; exclude /xxxx/public_html/logs; exclude /xxxxx/public_html/magento/var/log; backup-directory /data/sync-conflicts/; backup-generations 2; auto younger; } /etc/xinetd.d/csync2 csync2.cfg service csync2 { disable = no flags = REUSE socket_type = stream wait = no user = root group = root server = /usr/sbin/csync2 server_args = -i -D /data/sync-db/ port = 30865 type = UNLISTED log_type = FILE /data/logs/csync2/csync2-xinetd.log log_on_failure += USERID } I've made sure that the daemon is listening on both server on port 30865 and the keys matched on both servers I've run a tcpdump on each server, output as follows: 12:20:31.366771 IP server1.49919 server2.csync2: Flags [S], seq 445156159, win 14600, options [mss 1460,sackOK,TS val 794864936 ecr 0,nop,wscale 7], length 0 12:20:31.366810 IP server2.csync2 server1.49919: Flags [S.], seq 450593575, ack 445156160, win 14480, options [mss 1460,sackOK,TS val 794798911 ecr 794864936,nop,wscale 7], length 0 12:20:31.367101 IP server1.49919 server2.csync2: Flags [.], ack 1, win 115, options [nop,nop,TS val 794864937 ecr 794798911], length 0 12:20:31.367138 IP server1.49919 server2.csync2: Flags [P.], seq 1:9, ack 1, win 115, options [nop,nop,TS val 794864937 ecr 794798911], length 8 12:20:31.367147 IP server2.csync2 server1.49919: Flags [.], ack 9, win 114, options [nop,nop,TS val 794798912 ecr 794864937], length 0 12:20:31.368625 IP server2.csync2 server1.49919: Flags [R.], seq 1, ack 9, win 114, options [nop,nop,TS val 794798913 ecr 794864937], length 0 Is there anything else i'm missing or should be doing?

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  • Linksys WRT54GC v2.0 - all connection lights flashing

    - by JC Denton
    I have just received a Linksys WRT54GC router of a friend. Apperantly it has stopped working. All lights on it are flashing apart from the power and wireless light. I have read of similar issues online but not ones describing the same set of lights flashing. I have tried connecting to the device over ethernet but failed. It's no longer accessible over wireless either. I've also tried to run the linksys utility on the cd but it failed to detect the presence of the device (attempted over ethernet, firewall switched off). I've tried pressing the reset button for 30 seconds and disconnection the power cable for 30 seconds but to no avail. Thanks for any thoughts

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  • DNS "recursion not available" using a Cisco AnyConnect VPN connection

    - by codeape
    Does anyone have experience with configuring Cisco AnyConnect VPN? We have a problem with client DNS name resolution when connected over VPN. To me, it looks as if the Cisco AnyConnect VPN client intercepts DNS queries from the clients. Can someone confirm that the AnyConnect VPN client in fact does this (intercepts DNS traffic)? Where is this configured on the VPN server? EDIT: Here's how the routing table changes when I connect to the VPN: [~] $ diff -u /tmp/route_normal /tmp/route_vpn --- /tmp/route_normal 2010-01-20 19:23:47.000000000 +0100 +++ /tmp/route_vpn 2010-01-20 19:24:46.000000000 +0100 @@ -1,6 +1,10 @@ Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface +xxx.xxx.xx.xx.i 10.0.0.1 255.255.255.255 UGH 0 0 0 ath0 172.16.53.0 * 255.255.255.0 U 0 0 0 vmnet1 10.0.0.0 * 255.255.255.0 U 0 0 0 ath0 +172.17.20.0 * 255.255.255.0 U 0 0 0 cscotun 0 +192.168.111.0 172.17.20.212 255.255.255.0 UG 0 0 0 cscotun 0 172.16.140.0 * 255.255.255.0 U 0 0 0 vmnet8 +172.16.0.0 172.17.20.212 255.255.0.0 UG 0 0 0 cscotun 0 default 10.0.0.1 0.0.0.0 UG 0 0 0 ath0 EDIT 2: The IT guy has done "something" on the VPN endpoint. Now I get "recursion not available" when doing nslookup. The DNS servers have recursion enabled. So it must be the Cisco VPN DNS interception messing this up. ubuntu@domU-12-31-39-00-ED-14:~$ /opt/cisco/vpn/bin/vpn connect xxx.xxxxxx.xx ... >> Please enter your username and password ... >> notice: Establishing VPN... >> state: Connected >> notice: VPN session established to ... ubuntu@domU-12-31-39-00-ED-14:~$ nslookup www.vg.no ;; Got recursion not available from ..., trying next server ;; Got recursion not available from ..., trying next server ;; Got recursion not available from ..., trying next server ;; Got recursion not available from ..., trying next server Server: 172.16.0.23 Address: 172.16.0.23#53 ** server can't find www.vg.no.compute-1.internal: REFUSED ubuntu@domU-12-31-39-00-ED-14:~$ ping 195.88.55.16 PING 195.88.55.16 (195.88.55.16) 56(84) bytes of data. 64 bytes from 195.88.55.16: icmp_seq=1 ttl=240 time=110 ms 64 bytes from 195.88.55.16: icmp_seq=2 ttl=240 time=111 ms 64 bytes from 195.88.55.16: icmp_seq=3 ttl=240 time=109 ms ^C --- 195.88.55.16 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2017ms rtt min/avg/max/mdev = 109.953/110.379/111.075/0.496 ms

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  • Way to avoid ssh connection timeout & freezing of terminal tab

    - by Tchalvak
    When I connect via ssh terminal to certain servers, it timeouts and "freezes" the terminal (doesn't accept, doesn't disconnect, can't Ctrl-C to kill the ssh process or anything). This is in Ubuntu's Gnome-terminal, though it seems to be pausing the terminal input/output, and doesn't affect the operation of the Gnome-terminal software itself. so less a bug with gnome-terminal than an annoying inconsistency with ssh. So is there a way to prevent regain the terminal from ssh connections that have timed out?

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  • Effects of HTTP/TCP connection handshakes and server performance

    - by Blankman
    When running apache bench on the same server as the website like: ab -n 1000 -c 10 localhost:8080/ I am most probably not getting accurate results when compared to users hitting the server from various locations. I'm trying to understand how or rather why this will effect real world performance since a user in china will have different latency issues when compared to someone in the same state/country. Say my web server has a maximum thread limit of 100. Can someone explain in detail how end user latency can/will effect server performance. I'm assuming here that each request will be computed equally at say 10ms. What I'm not understand is how external factors can effect overal server performance, specifically internet connections (location, or even device like mobile) and http/tcp handshakes etc.

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  • Graphite SQLite3 DatabaseError: attempt to write a readonly database

    - by Anadi Misra
    Running graphite under apache httpd, with slqite database, I have the correct folder permissions [root@liaan55 httpd]# ls -ltr /var/lib | grep graphite drwxr-xr-x. 2 apache apache 4096 Aug 23 19:36 graphite-web and [root@liaan55 httpd]# ls -ltr /var/lib/graphite-web/ total 68 -rw-r--r--. 1 apache apache 65536 Aug 23 19:46 graphite.db syncdb also seems to have gone fine [root@liaan55 httpd]# sudo -su apache bash-4.1$ whoami apache bash-4.1$ python /usr/lib/python2.6/site-packages/graphite/manage.py syncdb /usr/lib/python2.6/site-packages/graphite/settings.py:231: UserWarning: SECRET_KEY is set to an unsafe default. This should be set in local_settings.py for better security warn('SECRET_KEY is set to an unsafe default. This should be set in local_settings.py for better security') /usr/lib/python2.6/site-packages/django/conf/__init__.py:75: DeprecationWarning: The ADMIN_MEDIA_PREFIX setting has been removed; use STATIC_URL instead. "use STATIC_URL instead.", DeprecationWarning) /usr/lib/python2.6/site-packages/django/core/cache/__init__.py:82: DeprecationWarning: settings.CACHE_* is deprecated; use settings.CACHES instead. DeprecationWarning Creating tables ... Creating table account_profile Creating table account_variable Creating table account_view Creating table account_window Creating table account_mygraph Creating table dashboard_dashboard_owners Creating table dashboard_dashboard Creating table events_event Creating table auth_permission Creating table auth_group_permissions Creating table auth_group Creating table auth_user_user_permissions Creating table auth_user_groups Creating table auth_user Creating table django_session Creating table django_admin_log Creating table django_content_type Creating table tagging_tag Creating table tagging_taggeditem You just installed Django's auth system, which means you don't have any superusers defined. Would you like to create one now? (yes/no): yes Username (leave blank to use 'apache'): root E-mail address: [email protected] Password: Password (again): Superuser created successfully. Installing custom SQL ... Installing indexes ... Installed 0 object(s) from 0 fixture(s) bash-4.1$ exit and the local-settings.py file is as follows STORAGE_DIR = '/var/lib/graphite-web' INDEX_FILE = '/var/lib/graphite-web/index' DATABASES = { 'default': { 'NAME': '/var/lib/graphite-web/graphite.db', 'ENGINE': 'django.db.backends.sqlite3', 'USER': '', 'PASSWORD': '', 'HOST': '', 'PORT': '' } } I still get this error [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] File "/usr/lib/python2.6/site-packages/django/db/backends/sqlite3/base.py", line 344, in execute [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] return Database.Cursor.execute(self, query, params) [Sat Aug 23 19:47:17 2014] [error] [client 10.42.33.238] DatabaseError: attempt to write a readonly database not sure what is missing in this configuration

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  • IRC newbie needs detailed "How To" directions for freenode.net connection with OS X IRC app

    - by Johnny Utahh
    Newbie IRC user here. Trying to get connected on freenode.net, preferably with a native Mac OS X client (I'm running 10.6.8), or at least something with a good "OS X feel." Also seeking a client that comes "well regarded" in Mac community (eg, Linkinus reflects outstanding Apple App Store user ratings). Thus far have found it remarkably difficult to "get started from scratch" with ANY client. All attempted clients (Colloquy, Textual, Linkinus) experience some sort of "* Notice -- You need to identify via SASL to use this server" error. I see this freenode SASL-friendly client list; am I really limited to only these clients? This "IRC-freenode startup" procedure has been far more difficult than I had originally anticipated. Why can't I just do this and have it "just work"? Bottom line: looking for a "chapter and verse"/cookbook description of how to get started with freenode.net IRC chat rooms on Mac OS. Need reference to known-working client, and then exact directions on how to get connected to a chat room with a nickname.

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  • nginx terminates connection after 65k bytes

    - by David Wolever
    I've got nginx configured as a front-end to a Python application running under gunicorn, but nginx is terminating connections after about 65k of data have been sent. For example, I've got a view which looks like this: def debug_big_file(request): return HttpResponse("x" * 500000) But when I access that URL through nginx, I only get 65283 bytes: $ curl https://example.com/debug/big-file | wc … curl: (18) transfer closed with outstanding read data remaining 0 1 65283 Note that everything works as expected when accessing gunicorn directly: $ curl http://localhost:1234/debug/big-file | wc … 0 1 500000 The relevant nginx config: location / { proxy_pass http://localhost:1234/; proxy_redirect off; proxy_headers_hash_bucket_size 96; } And nginx version 1.7.0 Some other facts: The number of bytes is consistent from request to request, but it varies based on the content (I first noticed it with a large PNG file, which was cut off after 65,372 bytes, not 65,283) 110k bytes are sent correctly (ie, "x" * 110000 returns all 110,000 bytes), but 120k bytes are not tcpdump suggests that nginx is sending a RST packet to gunicorn:

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  • Has anyone used the sharedband connection bonding product?

    - by John Rennie
    See http://www.sharedband.com/ for details on the product. Obviously Sharedband aren't too keen on giving away their technical secrets, but I would guess that it bonds the connections at the IP layer i.e. their routers send the IP packets to the SharedBand routers over all available lines and the ShareBand routers handle all the virtual circuitry and provide the NATing to whatever IP address(es) they've assigned you. It looks a clever idea, and a good way to provide some resilience over ADSL links. You can even use ADSL links from different ISPs and SharedBand will still bond them for you. But, I find myself wondering how well it really works, and whether it's worth it. The Draytek routers can already load balance (though not bond) up to four ADSL lines, so the SharedBand product really only offers an advantage if you're hosting servers i.e. you can have one IP address to accept incoming connections through all your (working) ADSL lines. But should you really try and host servers using ADSL lines, especially since ADSL upload performance isn't stellar? Wouldn't it be better to use a hosted server, or maybe pay up for a leased line with a SLA? So I'm asking if anyone is using SharedBand, and if so what do you think of it? JR

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  • MS Office Communicator: Long delays in setting up audio connection when starting a call

    - by geofftnz
    I am using Microsoft Office Communicator with a USB headset as my work phone. OCS is connected to our PABX so we can take and make calls to regular, non-OCS phones. When making an external call to a cellphone, it can take up to 5-10 seconds for audio to start flowing. eg: Work Phone Cellphone - dial cellphone (ringing) (ringing) answer cellphone (hearing nothing) speak "1" . speak "2" . speak "3" . ... . speak "14" hear "15" speak "15" hear "16" speak "16" Has anyone experienced this kind of thing with an OCS setup? Any pointers?

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  • Network connection to Firebird 2.1 became slow after upgrading to Ubuntu 10.04

    - by lyle
    We've got a setup that we're using for different clients : a program connecting to a Firebird server on a local network. So far we mostly used 32bit processors running Ubuntu LTS (recently upgraded to 10.04). Now we introduced servers running on 64bit processors, running Ubuntu 10.04 64bit. Suddenly some queries run slower than they used to. In short: running the query locally works fine on both 64bit and 32bit servers, but when running the same queries over the network the 64bit server is suddenly much slower. We did a few checks with both local and remote connections to both 64bit and 32bit servers, using identical databases and identical queries, running in Flamerobin. Running the query locally takes a negligible amount of time: 0.008s on the 64bit server, 0.014s on the 32bit servers. So the servers themselves are running fine. Running the queries over the network, the 64bit server suddenly needs up to 0.160s to respond, while the 32bit server responds in 0.055s. So the older servers are twice as fast over the network, in spite of the newer servers being twice as fast if run locally. Apart from that the setup is identical. All servers are running the same installation of Ubuntu 10.04, same version of Firebird and so on, the only difference is that some are 64 and some 32bit. Any idea?? I tried to google it, but I couldn't find any complains that Firebird 64bit is slower than Firebird 32bit, except that the Firebird 2.1 change log mentions that there's a new network API which is twice as fast, as soon as the drivers are updated to use it. So I could imagine that the 64bit driver is still using the old API, but that's a bit of a stretch, I guess. Thanx in advance for any replies! :)

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  • Recovering database files from a corrupted VHD

    - by Apocalypse9
    We have a SQL server hosted on a virtual machine. Our hosting company updated/restarted the server and for some reason the virtual machines became unbootable. We've spoken to Microsoft and used a few higher level tools to attempt to recover the virtual machines but were unsuccessful. In browsing the file system the database folder doesn't even appear. I'm wondering if there are any lower level tools that might be able to find and copy the database files. As far as I know the physical hard drive is ok, so I'm hoping there may be some way to recover the files themselves even if the rest of the virtual machine file-system is a loss. Obviously we're in a bit of a bind, and any help/ suggestions are very much appreciated.

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  • Windows Server 2008 and eSata External Connection

    - by Tyler
    Can anyone recommend a good eSATA PCIe card for Windows Server 2008 (x64)? I bought a J-Micron JMB363 and it's recognized by the OS and I can install one of their reference drivers, but it's not picking up the drive I have attached to it. Basically, I want to be able to transfer exported Hyper-V machines quickly to an external drive, and it seems that using one of these eSATA cards is the way to go.

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  • KVM-Guests can't get past bridge - no internet connection

    - by tmn29a
    I'm running a backported KVM on a Debian Squeeze. ATM the KVM-Guest can't connect to the internet through the bridge I have set up. The guests can reach each other, the host but nothing outside. I can neither ping, nslookup or do anything to a remote address. The guest are configured to have a static IP. When I didn;t have the bridge but a virtual bridge (the KVM-default) the guest could connect fine. After setting up the bridge things broke, so I think the problem lies there. # The loopback network interface auto lo br0 iface lo inet loopback # Bonding Interface auto bond0 iface bond0 inet static address 10.XXX.XXX.84 netmask 255.255.255.192 network 10.XXX.XXX.64 gateway 10.XXX.XXX.65 slaves eth0 eth1 bond_mode active-backup bond_miimon 100 bond_downdelay 200 bond_updelay 200 iface br0 inet static bridge_ports eth0 eth1 address 172.xxx.xxx.65 broadcast 172.xxx.xxx.127 netmask 255.255.255.192 gateway 172.xxx.xxx.65 bridge_stp on bridge_maxwait 0 Thanks in advance for your help !

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  • router - Problem Sharing internet connection in my router

    - by luis velasco
    Hi we are 4 roomates at the university but I have a problem. One of my roomies is downloading torrents all the time. When somebody need make a call or doing something like you tube or a quiz using the internet conection. The internet is very slow.... I can not create a network using a computer as a proxy. I just need a good router (and in the budget no more than $50).. I just want to split 16MB. In a separated 4 x 4 mb (theoretically)..

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  • MySQL: Replicating the MySQL database

    - by Lee
    Hi guys, I have a primary write server (server1) which replications to two servers (server2 and server3) which are query servers. I am replicating all databases to these servers including the MySQL database. When i execute a GRANT as follows replication works perfectly.. GRANT execute,select ON database1.* TO `user1`@`host` IDENTIFIED BY 'password'; However if i did the same GRANT to alter permissions on an existing user without IDENTIFIED clause replication breaks.. Error 'Can't find any matching row in the user table' on query. Default database: 'mysql'. Query: 'GRANT execute,select ON database1.* TO `user`@`host`' If I try and run the query manually i get the same error.. Server 1: mysql> SHOW VARIABLES LIKE "%version%"; +-------------------------+------------------------------------------------------------+ | Variable_name | Value | +-------------------------+------------------------------------------------------------+ | protocol_version | 10 | | version | 5.0.77-log | **my.cnf** [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql old_passwords=1 symbolic-links=0 max_allowed_packet = 100M log-bin = /var/lib/mysql/logs/borg-binlog.log max_binlog_size=50M expire_logs_days=7 [mysql.server] user=mysql basedir=/var/lib [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid Server 2: mysql> SHOW VARIABLES LIKE "%version%"; +-------------------------+------------------------------------------------------------+ | Variable_name | Value | +-------------------------+------------------------------------------------------------+ | protocol_version | 10 | | version | 5.0.77-log | my.cnf server-id=12 master-host=x master-user=x master-password=x master-connect-retry=60 relay-log=/var/lib/mysql/borg-relay.log relay-log-index=/var/lib/mysql/borg-relay-log.index Thanks for taking a look Edit: Currently its running fine, until you do the grant which breaks it... mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 10.128.0.5 Master_User: repli-ragnarok Master_Port: 3306 Connect_Retry: 60 Master_Log_File: borg-binlog.002730 Read_Master_Log_Pos: 4375760 Relay_Log_File: borg-relay.005489 Relay_Log_Pos: 4375899 Relay_Master_Log_File: borg-binlog.002730 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 4375760 Relay_Log_Space: 4375899 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 1 row in set (0.00 sec) Edit: Broken show slave status from history +----------------------------------+-------------+----------------+-------------+---------------+--------------------+---------------------+-------------------+---------------+-----------------------+------------------+-------------------+-----------------+---------------------+--------------------+------------------------+-------------------------+-----------------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+---------------------+-----------------+-----------------+----------------+---------------+--------------------+--------------------+--------------------+-----------------+-------------------+----------------+-----------------------+ | Slave_IO_State | Master_Host | Master_User | Master_Port | Connect_Retry | Master_Log_File | Read_Master_Log_Pos | Relay_Log_File | Relay_Log_Pos | Relay_Master_Log_File | Slave_IO_Running | Slave_SQL_Running | Replicate_Do_DB | Replicate_Ignore_DB | Replicate_Do_Table | Replicate_Ignore_Table | Replicate_Wild_Do_Table | Replicate_Wild_Ignore_Table | Last_Errno | Last_Error | Skip_Counter | Exec_Master_Log_Pos | Relay_Log_Space | Until_Condition | Until_Log_File | Until_Log_Pos | Master_SSL_Allowed | Master_SSL_CA_File | Master_SSL_CA_Path | Master_SSL_Cert | Master_SSL_Cipher | Master_SSL_Key | Seconds_Behind_Master | +----------------------------------+-------------+----------------+-------------+---------------+--------------------+---------------------+-------------------+---------------+-----------------------+------------------+-------------------+-----------------+---------------------+--------------------+------------------------+-------------------------+-----------------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+---------------------+-----------------+-----------------+----------------+---------------+--------------------+--------------------+--------------------+-----------------+-------------------+----------------+-----------------------+ | Waiting for master to send event | 10.128.0.5 | repli-valhalla | 3306 | 60 | borg-binlog.002729 | 40429793 | borg-relay.005486 | 40311514 | borg-binlog.002729 | Yes | No | | | | | | | 1133 | Error 'Can't find any matching row in the user table' on query. Default database: 'mysql'. Query: 'GRANT execute,select ON auth_tracker.* TO `mail-sin1`@`%.sin1.netline.net.uk` IDENTIFIED BY 'mail-sin1666'' | 0 | 40311375 | 40429932 | None | | 0 | No | | | | | | NULL | +----------------------------------+-------------+----------------+-------------+---------------+--------------------+---------------------+-------------------+---------------+-----------------------+------------------+-------------------+-----------------+---------------------+--------------------+------------------------+-------------------------+-----------------------------+------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------+---------------------+-----------------+-----------------+----------------+---------------+--------------------+--------------------+--------------------+-----------------+-------------------+----------------+-----------------------+ 1 row in set (0.06 sec)

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  • Create tunnel through an open SSH connection?

    - by criptych
    I have a remote PC (behind NAT and firewall) set up to create a reverse SSH tunnel to my home PC/server (DMZed). Unfortunately, the tunnel hasn't been working lately. Fortunately -- I think -- the remote PC currently has an SFTP session open to the local one. My question is, can I create a tunnel back to the remote PC through that session? Or am I SOL until I can physically get in to restore the reverse tunnel on the remote PC?

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  • Safari can’t establish a secure connection to the server

    - by gdelfino
    I realize there is another question with the same title, but my situation is very different. The problem started on three of my computers after upgrading from Leopard to Snow Leopard. I can login to gmail and facebook using https with no problem. I can not login to https://identi.ca/main/login or https://seminars.wolfram.com/ or https://panopticlick.eff.org with Safari, works fine with Firefox. Already tried "Safari Reset..." Any ideas?

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