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• Changing Internet connection on ISA Server 2000

  - by garyb32234234

  Hi We are getting a new internet connection installed and will need to unplug the old one and connect this to our ISA Server 2000. Will this be a simple swap out job? We will be given a new ip, which i know i will have to enter into the external network card TCP/IP page. I will also be given the default gateway to enter. The ISP engineer said we may have to reset the ARP? cache, if we dont know how we will have to reset the ISA server? Has anyone any experience? The current connection is with the same ISP but it was owned by the business park were we are located and they linked up an ethernet port to what i assume is their own router. Hope you can help, i know that ISA 2000 is somewhat less easy to use than the newer versions.

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• IBM Server searching for secondary server

  - by user1241438

  I just bought the following server IBM System x3950 Server, 4 x 3.0GHz Dual Core, 32GB, 6 x 73.4GB 10K SAS RAID, 256MB BBWC, 2x Power, CD-RW/DVD When i boot it up, it says "Searching for secondary server" and hangs their for almost 10 mins. After 10 mins, it says timeout on searching chassis 2. But after this it proceed to boot the OS properly. But my frustration, i need to wait for almost 15 mins to boot everytime. How do i prevent this error message.

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• Are there other application layer firewalls like Microfot TMG (ISA) that do advanced http rules?

  - by Bret Fisher

  Since the old days ISA and now TMG have had several great features that I often want to deploy to my customers because of the enhanced functionality and security, but often the cost of an additinal server HW, Windows Server, and TMG license is too much to justify when compaired to a $300-500 appliance. Are there other gateway firewalls that can perform one or more of these application layer features: pre-auth incoming http traffic against AD/LDAP before sending packets to internal server (forms auth or basic creds popup)? read host headers of incoming http traffic (even on https) to a single public IP and route packets to different internal servers based on that host header?

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• having 2 ip's on a debian 7 box

  - by David

  I just installed Debian Wheezy on my homeserver. I want to assign 2 ip's to it on the same network interface, 1 static ip (eth0) and 1 dynamic ip (eth0:1). I know it doesn't make much sense but I need it to test something. I edited my /etc/network/interfaces to be like this: auto lo eth0 eth0:1 iface lo inet loopback iface eth0 inet static address 192.168.178.240 network 192.168.178.0 netmask 255.255.255.0 broadcast 192.168.178.255 gateway 192.168.178.1 iface eth0:1 inet dhcp when I bring up eth0:1 (ifup eth0:1) I get the following error (eth0 works fine) Bind socket to interface: No such device Failed to bring up eth0:1. is it even possible to have a dynamic and static ip on the same network adapter?

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• nginx automatic failover load balancing

  - by robinmag

  Hi, I'm using nginx and NginxHttpUpstreamModule for loadbalancing. My config is very simple: upstream lb { server 127.0.0.1:8081; server 127.0.0.1:8082; } server { listen 89; server_name localhost; location / { proxy_pass http://lb; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } But with this config, when one of 2 backend server is down, nginx still routes request to it and it results in timeout half of the time :( Is there any solution to make nginx to automatically route the request to another server when it detects a downed server. Thank you.

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• What kind of SSL certificate do I need?

  - by Christoffer

  Hi, I want to install HTTPS on my server and I wonder what kind of certificate I will need and where I can buy it. The site is a web application that demands high security by it's users since they store sensitive business data. I am also integrating a third party payment gateway into the register process of the site and need a secure way to send credit card data one way. I do not intend to store this data in our own database. So, what do I need? And also, how do I install it on Ubuntu Server 9.10 / Apache2 ? Cheers! Christoffer

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• how to manage credentials/access to multiple ssh servers

  - by geoaxis

  I would like to make a script which can maintain multiple servers via SSH. I want to control the authentication/authorization in such a manner that authentication is done by gateway and any other access is routed through this ssh server to internal services without any further authentication/authorization requirements. So if a user A can log into server_1 for example. He can then ssh to server_2 without any other authentication and do what ever he is allowed to do on server_2 (like shut down mysql, upgrade it and restart it. This could be done via some remote shell script). The problem that I am trying to solve is to come up with a deployment script for a JavaEE system which involves databases and tomcat instances. They need to be shutdown and re-spawned. The requirement is to have a deployment script which has minimal human interaction as possible for both developers and operation.

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• Google Chrome custom search engine for secure Wikipedia

  - by gdejohn

  I have this custom search engine set up in Google Chrome: https://encrypted.google.com/search?q=site%3Aen.wikipedia.org+%s&btnI=745 It searches Google for site:en.wikipedia.org {query}, and the btnI=745 is for I'm Feeling Lucky, so it automatically redirects to the first result. I like this better than using Wikipedia's search function directly because it gives me very effective approximate string matching, so I can misspell my search, or leave a word out, or just search for some keywords, and I still get what I'm looking for right away. What I'd like is for it to use Wikipedia's secure gateway: https://secure.wikimedia.org/wikipedia/en/wiki/ It's easy enough to set up a custom search engine that uses the secure version of Wikipedia's search function directly, but I can't figure out how to correctly incorporate it into my version going through Google. Nothing I've tried works.

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• Unable to connect to remote MS SQL Server 2008 Express SP3 instance by name

  - by Max

  I am trying to connect to a remote MS SQL Server 2008 SP3 x86 Instance using it's name. At the first glance all seems to work well (e.g. it is possible to connect to the server locally and succesfully telnet it's port remotely), but there is a thing I can't understand... This line should connect us to the default instance of remote SQL Server: osql -S ServerIP -d MyDatabase /U sa -P MyPassword and it does the trick, however the next one: osql -S ServerIP\MyInstance -d MyDatabase /U sa -P MyPassword ends up with the following error: [SQL Native Client]SQL Network Interfaces: Error Locating Server/Instance Specified [xFFFFFFFF]. [SQL Native Client]Login timeout expired [SQL Native Client]An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. The only instance running on the server is MyInstance, which is (I guess) the default one. Could you please put some time in explaining the issue.

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• ServerName no longer works as SQL Server 2008 Default instance name?

  - by TomK

  Folks, Somehow in struggling to install something (Sage MIP), I have unsettled my system's SQL Server 2008 instance names. If I fired up SSMS and connected to "MySystemName" (while logged into MySystemName), I used to immediately connect and could view my databases. Now if I connect to "(local)" or "." I connect just fine...but "MySystemName" gives me a timeout error. If I log in with "." and do "SELECT @@SERVERNAME" it comes back with "MySystemName" just fine. I've double checked that my network name is in the Security\Logins list, and it is, as a dbadmin. Any suggestions? I thought that having SQL Server 2005 Express might be a problem (the "battle of the default instances"), so I uninstalled that. No better.

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• Xen 4.1 host (dom0) with blktap disks ("tap:aio:") not connecting

  - by Manwe

  Problem using blktap with xen-4.1 running Ubuntu Precise stock kernel with dom0 xen-4.1. I get: [ 5.580106] XENBUS: Waiting for devices to initialise: 295s...290s. ... [ 300.580288] XENBUS: Timeout connecting to device: device/vbd/51713 (local state 3, remote state 1) And some syslog lines: May 17 13:07:30 localhost logger: /etc/xen/scripts/blktap: add XENBUS_PATH=backend/tap/10/51713 May 17 13:07:31 localhost logger: /etc/xen/scripts/blktap: Writing backend/tap/10/51713/hotplug-status connected to xenstore. with tap:aio: disk lines. file:/ works. disk = [ 'tap:aio:/data/root.img,xvda1,w', ] Problem exists with lucid and precises domU kernels and both guests work in Ubuntu hardy dom0 Host 64bit 2.6.24-28-xen xen-3.3 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise

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• Ubuntu 12.04 host lookups extremely slow

  - by tubaguy50035

  I'm having issues with one of my servers taking a long time to look up host names. This is an Ubuntu 12.04 box, so I've tried following the new resolvconf directives. In my /etc/network/interfaces file, I defined my name servers like this: auto eth0 iface eth0 inet static address someaddress netmask 255.255.255.0 gateway 198.58.103.1 dns-nameservers 74.14.179.5 72.14.188.5 In my /etc/resolv.conf, I see these name servers, like this: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 74.14.179.5 nameserver 72.14.188.5 On another box, I edited the resolv.conf directly as directed by my hosts' setup help files. It looks like this: domain members.linode.com search members.linode.com nameserver 72.14.179.5 nameserver 72.14.188.5 options rotate This second box has no issues with host name look ups and responds quite quickly. Could not having the domain and search directives make my look ups slow? By slow, I mean it's taking anywhere from 5 to 15 seconds to find the IP address of a host.

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• How to create a VPN between a Host and VMWare VMs?

  - by Anindya Chatterjee

  I have a set of machines as follows My home laptop running Win7 Ultimate with internet connection. A vmware workstation vm running Windows Server 2003 Standard edition server in my laptop w/o internet connectivity Some of my peers' machines connected to internet I want to create a VPN with these machines, provided the VM will not have any direct internet connection and my peers should able to connect to the SVN server application running on this Win2003 server VM. Can anybody please suggest me how to setup this network, what software I need to install in both physical machine and vm, what kind of network connectivity should be there between vmware guest and host machine? EDIT: I deliberately don't want to connect the VM with internet. The host will work more of a gateway of the VPN connection for the VM.

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• Apache CPU usage stays at 100% even when there are no requests

  - by Leirith

  Hi, I've been running the Apache HTTP server benchmarking tool (ab) on my new Apache server to test performance. I noticed that with a command like the following: ab -n 100000 -c 1000 http://www.mysite.com/ The CPU is used 100% by the apache2 processes during the testing. When the test concludes, usually with the following error just before the last requests are made: apr_poll: The timeout specified has expired (70007) Total of 99960 requests completed the CPU usage remains at 100%, and it's all being consumed by apache. I am using the worker MPM with and running PHP with mod_fcgid. Any advice as to why this is or what can be done to stop it would be appreciated.

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• How to set which IP to use for a HTTP request?

  - by GetFree

  This is probably a silly question. I'm doing some http requests using wget from the command line, and I want those connections to be made through one specific IP of the 4 IPs my server has. Those http requests go to one specific range of IPs so I only want those to be routed differently. The 4 interfaces in my server are eth0, eth0:0, eth0:1, eth0:2. I tried with the following command: route add -net 192.164.10.0/24 dev eth0:0 But when I see the routing table it says: Destination Gateway Genmask Flags MSS Window irtt Iface 192.164.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 The interface is set to eth0 not eth0:0 as my command says. What am I doing wrong?

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• Dark Windows 7 Screen

  - by user147521

  My Gateway laptop -Windows 7- screen became too dark a few days ago after I finished installing Windows automatic update. I can see nothing unless I use a flashlight. Windows login screen is the only bright screen for few seconds. What should I do to resolve this issue? I checked power-saving/ Power Options settings and rebooting in Safe Mode. I tried to lower the refresh rate but it did not allow me. The laptop adapter type is ATI Radeon Xpress series. I uninstalled and reinstalled the driver. And the driver is up to-date. Any help would be appreciated.

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• How to elegantly selectively exclude FreeBSD network traffic from OpenVPN interface by port

  - by Polygonica

  inexperienced sysadmin here. I'm planning on running a net daemon inside a FreeBSD jail through OpenVPN, but want to be able to SSH directly into the jail and use the daemon's web interface daemon without going through the VPN. As I understand it, an OpenVPN tunnel is normally set up as a default virtual internet interface, and so incoming traffic will go out on the OpenVPN interface by default (which is problematic, as this incurs latency). I thought "well, obviously, since all of this traffic is leaving on a handful of ports, I'll just redirect those to the non-VPN gateway." I've tried to look for solutions, but almost all of them involve iptables instead of ipfw (which is default for FreeBSD) and solve slightly different problems. And alternate solutions like using multiple default routes to ensure that incoming traffic on any interface is always sent out on the same interface seem far-reaching and require deep knowledge of all tools involved. Is there an elegant way of ensuring that traffic leaving on specific ports exits on a specified non-default interface using ipfw?

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• Inbound connections using Internet Connection Sharing in Apple/Mac/Leopard

  - by tlianza

  I have a Mac mini which I'm using to give some other devices wireless access, by sharing it's Airport connection with the local ethernet, and that is plugged into a switch. All devices can get online no problem. (See how: http://www.macosxhints.com/article.php?story=20041112101646643 and http://www.macosxhints.com/article.php?story=20071223001432304 ) The issue is that I need to be able to connect in to these machines as well (at least, for the Slingbox to work). All the devices have 192.168.2.* addresses, and the rest of my local network is on 192.168.1.*. I tried setting a static route so that the 192.168.2.* addresses would use a gateway of 192.168.1.50 (my mac mini's address) but that didn't seem to help. Does anyone know if what I'm trying to do is possible? I admit I'm not certain what Internet Connection sharing is really doing under the hood... perhaps it just does basic nat, and doesn't do the type of routing I'm looking for. If so, anyone know if this is possible?

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• Auto login CISCO VPN client on linux [closed]

  - by user70704

  Hi, I have installed Cisco vpn client on my linux system (Fedora core 8). After login, every time, i need to run the following command VPNC to connect the VPN server. VPNC command request the input data from the user, IPSec gateway : IPSec ID: IPSec Secret: Username: Password: So, my requirement is, can i connect the VPN server through any single command?. I feel so lazy to enter the above requirements at every time. I want to connect the VPN Server on boot startup. I was try using expect script, but i can't. Thanks in advance.

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• Custom grub config hangs at the prompt

  - by drecute

  Please I need help with this custom grub: default=0 timeout=20 fallback=1 title Remote Install root (hd0,0) kernel /vmlinuz_remote lang=en_US keymap=us ks=nfs:192.168.128.42:/tftpboot/Kickstart/ks.cfg ksdevice=00:1A:64:22:32:4B headless xfs panic=60 initrd /initrd_remote.img I have 3 grub configs and I've been able to make the "Remote install" grub config to be the default run. At the moment it boots up but hangs at the prompt. Grub version: 0.98 The other 2 grubs that comes that exists after successful installation and update of the kernel are: splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-279.9.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-279.9.1.el6.x86_64 ro root=/dev/mapper/vg_serverprisa-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_LVM_LV=vg_serverprisa/lv_swap rd_NO_MD rd_LVM_LV=vg_serverprisa/lv_root SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet initrd /initramfs-2.6.32-279.9.1.el6.x86_64.img title CentOS (2.6.32-279.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-279.el6.x86_64 ro root=/dev/mapper/vg_serverprisa-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_LVM_LV=vg_serverprisa/lv_swap rd_NO_MD rd_LVM_LV=vg_serverprisa/lv_root SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet initrd /initramfs-2.6.32-279.el6.x86_64.img

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• 500 internal server error

  - by Rockr

  I am facing 500.0 Internal server quite frequently with my website. The error details are given below. HTTP Error 500.0 - Internal Server Error C:\PHP\php-cgi.exe - The FastCGI process exceeded configured activity timeout Module FastCgiModule Notification ExecuteRequestHandler Handler PHP_via_FastCGI Error Code 0x80070102 Requested URL http://mydomain.com:80/index.php Physical Path C:\HostingSpaces\coderefl\mydomain.com\wwwroot\index.php Logon Method Anonymous Logon User Anonymous When I contacted the support team, they're saying that my site is making heavy SQL Queries. I am not sure how to debug this. But my site is very small and the database is optimized. I'm running wordpress as platform. How to resolve this issue?

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• Where would an S3 upload speed cap originate?

  - by CoreyH

  I do a ton of uploading to S3 and am experiencing capped speeds and I can't quite figure out how to address it. The setup: Windows Server 2008 R2 x64, external HD, using a Java based upload tool called Jsh3ll and custom VBS scripts to kick the jobs off. Running one process at a time, I am always limited to about 4mbps. I have FiOS at 35/35mbps speeds, so it isn't an outright limit. AND, I can run parallel instances and can go all the way up to 35mbps, so I know the problem isn't gateway/nic/machine/amazon related. Running parallel instances works to a degree as a solution, but increases the complexity of my workflow greatly. Solving this would make my life dramatically easier. When I was first doing this I was playing around with a bunch of Windows TCP parameters and was able to briefly get unconstrained bandwidth, but it wasn't repeatable. Thoughts?

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• Slowness on Exchange 2007 Server (network related we think)

  - by Az

  We are seeing some odd behavior out of our exchange 2007 server. I believe it is network related as during the slowness in response from the exchange server. During these times downloading files to server is fraught with connection resets and extreme slow download speeds that are not affecting other servers right on the same subnet with the same gateway and ISP. We have about 50 users at a time using Outlook 2003 from a terminal server not displaying any other signs of slowness, all network slowness is confirmed trying downloads on the exchange server itself. Checked for virus issues, there are none. Checked for hardware issues, none found I am noticing between 200-400 TCPv4 connections established I am seeing around 100k tcpv4(active) connections according to perfmon are these numbers odd? Has anyone run into anything similar? Our server has a gigbabit NIC linked to a gigabit switch using cat6 so I do not believe it is "physical". Thanks!

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• Unable to access internet if wireless enabled

  - by balki

  The following is my route output. eth0 is my wired network and eth1 is my wireless network. Only wired one has access to internet. If I enable wireless, I am not able to access internet, it tries to access via eth1 and I get 404 page of the wireless router. Why does eth1 have higher preference though default is eth0 (link)? [balakrishnan@mylap ~]$ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 10.26.0.1 0.0.0.0 UG 0 0 0 eth0 10.26.0.0 * 255.255.192.0 U 1 0 0 eth0 link-local * 255.255.0.0 U 1000 0 0 eth0 192.168.1.0 * 255.255.255.0 U 9 0 0 eth1

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• Have two exchange servers to communicate together

  - by Data-Base

  We have Exchange Server 2007 using our domain ddd.com. We created an isolated network with a firewall/gateway and installed a DC and Exchange Server 2010 using a demo/test domain (ddd.loc). We opened all the needed ports in the firewall (10.10.2.88) to the Exchange Server 2010. In our main Domain Controller (10.10.2.3) we defined the domain ddd.loc with IP 10.10.2.88 (firewalls). We also we defined MX records to the same IP (10.10.2.88) We did that so when we send email from my email [email protected] it will go to the Exchange Server 2010. Anyways, all the pings test from to any servers are OK. But we are not able to send or receive emails. Between these Exchange Servers we can not send any email from the 2010 to any email in general (emails are pending). Also, in Exchange 2007 we are getting error #550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##

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