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  • Nokia E75 Mail for Exchange

    - by Sebastian
    Hi, I have a SBS2003 runing Exchange Server 2003 SP2. My OWA has a godaddy certificate valid for 3 years to come installed. HTTPS works fine for OWA. The certificate has also been copied into the Nokia E95 I am trying to syncronize my Nokia E75 via Mail for Exchange to my mail account on the Exchange server. These are the steps i use: Menu Email New Start Select Internet Gateway Than i enter the details: [email protected] I select company email Mail for Exchange In the domain menu i enter : mydomain In the username/password menu i enter : myusername/mypassword In the server menu i enter : mail.mydomain.com (where the DNS resolves into the server's IP address) In the secure access i select : Internet / Secure / 443 NOTE : port 443 has been opened on my SBOX and forwarded to the exchange server. On IIS default website properties directory security secure communications edit the "Require Secure Channel SSL" is enabled. However, when i try to sync my phone i get the following error code: * Mail for Exch permissions illegal. Check permission configuration. * The phone log gives the following information : Username or Password Illegal. Correct Username and/or Password in the profile options. I've tried speaking with the Phone service support but they cannot identify the problem. Any help will be much apreciated.

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  • Host Name Resolution - ISA 2006 - VPN PPTP

    - by Brian Lee Jackson
    We are running an ISA 2006 server and PPTP VPN connection works fine. Clients are able to connect to internet, access Outlook, CRM, etc. The problem we are encountering is that host name resolution is not working. Example, when connected via VPN I can’t ping any box other than the VPN server by the host name. Nslookup also fails. I can ping everything fine via IP address. But for clients, they need to be able to access their “mapped” drives over the VPN which all are mapped by host name. I recently took over this position and it sounds like this used to work. What would be the best place to check first? I haven’t had much exposure to ISA and have been reading up a bit on installation procedures, etc. DNS is hosted and running on our domain controller, as well as WINS. It isn’t on the ISA box. Is there a firewall policy that perhaps got removed? What usually is required for host name resolution to pass through. Any help would be appreciated, thanks!

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  • One dns server in different subnets

    - by hofmeister
    I have installed a small Linux server; the server is in a different subnet as the internet hosts. I added a route to my nat router to create a connection between both subnets. In both subnets I use an extra dhcp Server. Subnet A: 192.168.0.0/26 Subnet B: 192.168.1.0/26 Router: 192.168.0.1, Server in A: 192.168.0.62, Server in B: 192.168.1.62 internet ____ nat router ___ (Sub A)___ internet hosts | |____(Sub B)___ other hosts I could ping every host. Also the hosts which are connected to the subnet b, has internet connection. But sadly I have a problem with the dns server. I use the dnsServer from my nat router, I set the dns Server for subnet b to the ip 192.168.0.1, but every dns entries are equal with the hostname from my linux server. Example if the hostname from the server is test Test 192.168.0.62 //Server subnet a Test-2 192.168.1.62 //Server subnet b Test-2-2 192.168.1.1 //host a Test-2-2-2 192.168.1.2 //host b Any idea what went wrong? The internet dns resolution works fine.

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  • Does migrating 2 domain controllers between 2 datacentre requires both virtual machines to be shut down at the same time?

    - by Imagineer
    I was attempting to migrate 2 virtual machines that are domain controllers between 2 datacentres running ESX 3.5 and ESX 4.1. I was advised to shut down both domain controller at the same time during the migration process. This is to avoid USN Rollback and other replication issues. The following are the steps that I was planning to perform: 1. Shutdown both DC. 2. Copy both VMs files across to new datacentre using Veeam FastSCP (connection to both vCentre through IP address instead of hostname) 3. Power them up at new datacentre. 4. Configure Network interface/DNS/DHCP for both DCs in new datacentre I have tried to use Veeam FastSCP rather than VMware Standalone Converter is because its copying rather than converting. Someone also suggested that I use backup and restore app like Veeam backup and replication software. Sounds like a simple job, but after shutting down both DCs, the transfer rate using FastSCP is so slow registering only 1KB/s as oppose to the normal 1MB/s (or more). When that attempt to transfer failed, I tried to cold clone both DCs resulted in the both ESX hosts get disconnected. I have tried troubleshooting by referring to this - VMware KB - Diagnosing an ESX Server that is Disconnected or Not Responding in VirtualCenter It seems that the DNS being down is the caused of all unusual occurrence. The moment I powered up the DCs via VMware console command, the ESX host were able to connect to the vCentre again. How can I avoid such a pitfall again? Am I doing it correctly? Any help would be greatly appreciated! Thank you.

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  • Can I use iptables on my Varnish server to forward HTTPS traffic to a specific server?

    - by Dylan Beattie
    We use Varnish as our front-end web cache and load balancer, so we have a Linux server in our development environment, running Varnish with some basic caching and load-balancing rules across a pair of Windows 2008 IIS web servers. We have a wildcard DNS rule that points *.development at this Varnish box, so we can browse http://www.mysite.com.development, http://www.othersite.com.development, etc. The problem is that since Varnish can't handle HTTPS traffic, we can't access https://www.mysite.com.development/ For dev/testing, we don't need any acceleration or load-balancing - all I need is to tell this box to act as a dumb proxy and forward any incoming requests on port 443 to a specific IIS server. I suspect iptables may offer a solution but it's been a long while since I wrote an iptables rule. Some initial hacking has got me as far as iptables -F iptables -A INPUT -p tcp -m tcp --sport 443 -j ACCEPT iptables -A OUTPUT -p tcp -m tcp --dport 443 -j ACCEPT iptables -t nat -A PREROUTING -p tcp --dport 443 -j DNAT --to 10.0.0.241:443 iptables -t nat -A POSTROUTING -p tcp -d 10.0.0.241 --dport 443 -j MASQUERADE iptables -A INPUT -j LOG --log-level 4 --log-prefix 'PreRouting ' iptables -A OUTPUT -j LOG --log-level 4 --log-prefix 'PostRouting ' iptables-save > /etc/iptables.rules (where 10.0.0.241 is the IIS box hosting the HTTPS website), but this doesn't appear to be working. To clarify - I realize there's security implications about HTTPS proxying/caching - all I'm looking for is completely transparent IP traffic forwarding. I don't need to decrypt, cache or inspect any of the packets; I just want anything on port 443 to flow through the Linux box to the IIS box behind it as though the Linux box wasn't even there. Any help gratefully received... EDIT: Included full iptables config script.

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  • Intermittent FTP login issues (Microsoft IIS FTP Service)

    - by JaggenSWE
    I've got a somewhat weird problem which I'm not sure how to troubleshoot. We have a FTP running on a Windows Server 2003 machine using the IIS FTP Service, this is for our clients and is configured with IP-restrictions. However, now ONE of the clients starts complaining that they can't log in to the server from time to time. This is just ONE of 10+ clients that have this issue, which makes me think it's a problem on their side. Just to be on the safe side I had a peek into the FTP logs and found something strange. Whenever succeed in loggin in this is what I can find in the logs: nnn.nnn.nnn.70, userxxx, 2012-06-11, 09:22:32, MSFTPSVC1, SERVERNAME, nnn.nn.nn.11, 0, 0, 0, 331, 0, [191747]USER, userxxx, -, nnn.nnn.nnn.70, userxxx, 2012-06-11, 09:22:32, MSFTPSVC1, SERVERNAME, nnn.nn.nn.11, 0, 0, 0, 230, 0, [191747]PASS, -, -, However, if the login fails I see the following events: nnn.nnn.nnn.70, userxxx, 2012-06-11, 09:16:33, MSFTPSVC1, SERVERNAME, nnn.nn.nn.11, 0, 0, 0, 331, 0, [191739]USER, userxxx, -, nnn.nnn.nnn.70, -, 2012-06-11, 09:16:33, MSFTPSVC1, SERVERNAME, nnn.nn.nn.11, 0, 0, 0, 530, 1326, [191739]PASS, -, -, When you look at the event where the clients sends the PASS in the successful login it seems to know that it is infact "userxxx" that is coupled to that PASS, but when it fails it seems to be lost since user in the PASS event is set to "-". Anyone have any ideas around this, any help would be appreciated. :) //JaggenSWE

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  • Last (I think and hope) problems configuring SSL certificate with Apache and VirtualHosts

    - by user65567
    Finally I set apache2 to get a single certificate for all subdomains. [...] # Go ahead and accept connections for these vhosts # from non-SNI clients SSLStrictSNIVHostCheck off # Apache setup which will listen for and accept SSL connections on port 443. Listen 443 # Listen for virtual host requests on all IP addresses NameVirtualHost *:443 # Because this virtual host is defined first, it will # be used as the default if the hostname is not received # in the SSL handshake, e.g. if the browser doesn't support # SNI. <VirtualHost *:443> ServerName domain.localhost DocumentRoot "/Users/<my_user_name>/Sites/domain/public" <Directory "/Users/<my_user_name>/Sites/domain/public"> Order allow,deny Allow from all </Directory> # SSL Configuration SSLEngine on ... </VirtualHost> <VirtualHost *:443> ServerName subdomain1.domain.localhost DocumentRoot "/Users/<my_user_name>/Sites/subdomain1/public" <Directory "/Users/<my_user_name>/Sites/subdomain1/public"> Order allow,deny Allow from all </Directory> # SSL Configuration SSLEngine on ... </VirtualHost> <VirtualHost *:443> ServerName subdomain2.domain.localhost DocumentRoot "/Users/<my_user_name>/Sites/subdomain2/public" <Directory "/Users/<my_user_name>/Sites/subdomain2/public"> Order allow,deny Allow from all </Directory> # SSL Configuration SSLEngine on ... </VirtualHost> So, for example, I can correctly access https://subdomain1.domain.localhost https://subdomain2.domain.localhost ... Now, anyway, I have problems on accessing http://subdomain1.domain.localhost http://subdomain2.domain.localhost ... Since I use a Mac Os, on accessing the "http: version", I get a default page "Your website." (instead of a error). Why does it happen?

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  • How do you get AWS VPC EC2 instances to be able to see the AWS APIs?

    - by Peter Mounce
    We're spinning up infrastructure inside of an AWS VPC via CloudFormation. We're using auto-scaling groups to bring up VPC-EC2 instances (so, we don't bring up instances directly; ASGs manage that). Inside of a PVC, EC2 instances only have a private IP; they cannot see the outside world without further work. When these instances spin up, we have some bootstrap tasks that require talking to the various AWS APIs. We also have some ongoing tasks that require AWS API traffic. How are you tackling this apparent chicken-egg problem? We've read about: NAT instances - but don't like this so much because it's another layer to our stack. assigning elastic-IPs to each VPC instance that needs to talk - but a) they all do, and b) since we're using ASGs, we don't know which instances to assign EIPs to at provision-time, and c) we'd need to set up something to monitor those ASGs and assign EIPs when instances are terminated and replaced spinning up an instance (actually, a load-balanced pair, probably spanning AZs) to act as an AWS-API proxy for all API traffic I guess I'm wondering whether there's some kind of back-door we can open that allows our VPC EC2 instances access to the AWS API endpoints, but nothing else, for cheap-complexity setup, that doesn't add another network-hop layer to our infrastructure for serving requests.

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  • Configure Nginx to render static files and rewrite file extension or proxy_pass

    - by Pardoner
    I've set up Nginx to handle all my static files else proxy_pass to a Node.js server. It's working fine but I'm having difficulty rewriting the url so that it remove the .html file extension. upstream my_upstream { server 127.0.0.1:8000; keepalive 64; } server { listen 80; server_name staging.mysite.com; root /var/www/staging.mysite.org/public; access_log /var/logs/staging.mysite.org.access.log; error_log /var/logs/staging.mysite.org.error.log; location ~ ^/(images/|javascript/|css/|robots.txt|humans.txt|favicon.ico) { rewrite (.*)\.html $1 permanent; try_files $uri.html $uri/ /index.html; access_log off; expires max; } location / { proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header Host $http_host; proxy_set_header X-NginX-Proxy true; proxy_set_header Connection ""; proxy_http_version 1.1; proxy_cache one; proxy_cache_key sfs$request_uri$scheme; proxy_pass http://my_upstream; } }

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  • Restrict Computer or Users from Internet but allow access to intranet and Windows Update / ePO?

    - by MoSiAc
    So this may be impossible but I've been asked to try and find something about it. So far nothing I have found is possible. I need to restrict specific machines or user accounts from regular Internet access but let them have access to the intranet portion of our network. I do not have Active Directory control, nor does anyone at my local workplace (corporate control in a different state). I have tried going through IPsec and doing this per local machine, but that system seems to have been removed from the images that are installed on these machines so that is out. So far the only other option I can think of is assigning the machines a specific ip address and removing their gateway access. This would probably work but the machines need to be able to receive updates that are being pushed to them through ePO and LanDesk. I would really like to do this on the user level because then if I need to do tech work to the machine and need internet access I can get to it but a "special" user could login and not be able to get into anything.

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  • SQL Server Subscriber Migration

    - by SuperCoolMoss
    We're currently have one way transaction replication from a SQL Server 2005 OLTP publisher/distrbituor to two subscribers (one SQL 2005 and the other SQL2008 R2). Replication security is via the SQL Agents' domain service account (the same account is used on all boxes). The SQL2008R2 subscriber is used for BI purposes and hosts a database that has a subset of the Production publisher database tables, with different security and indexes. We need to migrate this BI subscriber to a newer box with more performant hardware. The plan is as follows: Stop replicating to the BI box (continue replicating to the other subscriber). Backup all databases on the BI box (including system databases). Restore all databases (including master in single user mode) to the new BI box (this has SQL Server 2008R2 already installed). Take the old BI box off the network and shut it down. Rename and Re-IP the new BI box to be the same as the old box. Switch replication back on. Are there any flaws in this approach?

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  • 4.4.1 Timeout in 10 minute intervals SMTP on batch email jobs

    - by TEEKAY
    I am running a job that uses SMTP and it can run in excess of an hour, emailing the entire time. It's not my code but a workflow based app so I just get a form to configure the mail server, subj, msg, etc and can't see it's implementation. I know it is .NET and SmtpClient. I have been seeing 4.4.1 timeouts every 10 minutes being reported by the application as the response from the server. The # of emails in those 10 minute sessions are variable, between 100 and below 150 which leads me to ask about the 10 minute timeout time specifically. I have found there are several exchange properties (though I don't know what version they are running) that set timeout limits. (http://technet.microsoft.com/en-us/library/bb232205%28v=exchg.150%29.aspx) Would those values for ConnectionInactivityTimeOut and ConnectionTimeout be the controlling the timeouts? and finally I would like to ask if exchange considers the consistent connection(s) it kept receiving from the same source as one continuous connection and cause the timeout each 10 minutes and cause the timeout? I am using a static ip of the mail server. Thanks if anyone can shed any light on my problem. EDIT - It is my belief that the library is just keeping the connections around and isn't wrapped in any cleanup code or using statement. That said, I still haven't made any progress on this issue in the last year and just requeue the failed ones as I see them.

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  • Postgres pgpass windows - not working

    - by Scott
    DB: Postgres 9.0 Client: Windows 7 Server Windows 2008, 64bit I'm trying to connect remotely to a postgres instance for purposes of performing a pg_dump to my local machine. Everything works from my client machine, except that I need to provide a password at the password prompt, and I'd ultimately like to batch this with a script. I've followed the instructions here: http://www.postgresql.org/docs/current/static/libpq-pgpass.html but it's not working. To recap, I've created a file on the client (and tried the server as well): C:/Users/postgres/AppData/postgresql/pgpass.conf, where postgresql is the db user. The file has one line with the following data: *:5432:*postgres:[mypassword] (also tried explicit ip/dbname values, all asterisks, and every combination in between. (I've also tried replacing each '*' with [localhost|myip] and [mydatabasename] respectively. From my client machine, I connect using: pg_dump -h [myip] -U postgres -w [mydbname] [mylocaldumpfile] I'm presuming that I need to provide the '-w' switch in order to ignore password prompt, at which point it should look in the AppData directory on the server. It just comes back with "connection to database failed: fe_sendauth: no password supplied. Any insights are appreciated. As a hack workaround, if there was a way I could tell the windows batch file on my client machine to inject the password at the postgres prompt, that would work as well. Thanks.

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  • Port knocking via SSH tunnels

    - by j0ker
    I have a server running in my university's internal network. There is only one SSH daemon running which is secured by port knocking with knockd. Works fine if I try to connect from within the internal network. But since the server has no external IP, I have to tunnel into the internal network every time I want to access the server from outside. And since tunneling only works for a single port I cannot do the port knocking as easily as from an internal client. In fact, I don't get it to work at all. What I'm trying is opening tunnels for all the different ports that have to be knocked. Then I send TCP-SYN packets into the tunnels. But that doesn't work even for a single port. If I establish the tunnel on the first port in the knock sequence and send a packet through it, it doesn't reach the server. There is no entry in the log file of knockd, while there should be something like 123.45.67.89: openSSH: Stage 1 (as shown with internal knocks). So I guess, the problem doesn't exist within my knocking script but is a more general one. Are there any known problems with what I'm trying to do? Is it even possible or am I missing something? Thanks in advance!

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  • pptp server 2003 hands out gateway from nic not dhcp server

    - by Pete
    I have created a pptp RRAS server for a handful of clients to connect to. I would like them to use the servers default gateway (.1) for internet access. They are able to successfully connect (& see LAN) but it then cuts them off the internet. I understand that all internet traffic would be routed through the pptp server but that's ok since I have enough pipe. The problem seems to be that: the clients gateway shows as their assigned RAS ip. The clients assigned DNS settings seem to be what is set to the servers nic not what I have specified in dhcp (which is the same server). DHCP relay agent properties points to the nic DHCP is running on (192.168.100.163). .1 is gateway in nic hw properties & dhcp. I have different dns secondary & third entries on my nic properties than what dhcp is configured for. The problem is that I have a 10.10.1.x network that people can not see if they uncheck the gateway option but, they are then unable to see our other hosted sites on the internet.

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  • Variable TTL inside a LAN

    - by user140783
    I recently discovered that ping my local router, returns different TTL values??. The ping 3 switch must pass through before reaching the router, there may be the problem? 192.168.1.99 is the IP of my router , a Cisco WRT120N Thank you! Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=190 Respuesta desde 192.168.1.99: bytes=32 tiempo=29ms TTL=3 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=117 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=131 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=111 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=240 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=51 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=190 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=66 Traceroute G:\Documents and Settings\Administrador>tracert 192.168.1.99 Traza a la dirección maxi2011 [192.168.1.99] sobre un máximo de 30 saltos: 1 <1 ms <1 ms <1 ms maxi2011 [192.168.1.99] Traza completa. G:\Documents and Settings\Administradorping 192.168.1.99 Haciendo ping a 192.168.1.99 con 32 bytes de datos: Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=190 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=190 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=117 Respuesta desde 192.168.1.99: bytes=32 tiempo<1m TTL=117 Estadísticas de ping para 192.168.1.99: Paquetes: enviados = 4, recibidos = 4, perdidos = 0 (0% perdidos), Tiempos aproximados de ida y vuelta en milisegundos: Mínimo = 0ms, Máximo = 0ms, Media = 0ms G:\Documents and Settings\Administrador

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  • Using Computer name in URL causes issues when connecting to Web Services

    - by AWinters
    The set of applications I work on all access the same 8 or so web services that we have. These services and applications all reside on the same box and all use the computer name when trying to connect to the web service. For Example: If I have a web service called MapDataService and I have an application that accesses it, it would access it by the URL: http://COMPUTERNAME/MapDataService/MapDataService.asmx. This works in most of the applications that access the web service. However, we have several applications that, when using the computer name in the URL, will not get data returned from the service (actually a 503 is returned). In order to get it to work, the IP address of the system needs to be used in place of the COMPUTERNAME. This strikes me as very odd considering, as I mentioned before, all applications and services are on the same box and most other applications usr the COMPUTERNAME with no issues. Can someone give me some insight as to what could be causing this? We have no access to IIS logs and what logs we did get (this is on a customer site) are not very useful.

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  • Wake on Lan Remote not waking PC while the PC does receive the packet.

    - by Nycrea
    Over the last couple of weeks, I have been trying to set up WOL from a remote location. When I use my laptop to wake the machine locally, it works just fine. (for some reason, when I try to wake from my phone with an app called "WOL wake on lan" it does not work locally either, but I'll get to that later) Anyway, when the machine is turned on, and I let it 'listen' for incoming magic packets (with a program called "WOL magic packet sender") on my specified port, it does receive them, though when turned off, the machine does not wake. When sending from phone, either locally or via 3G remotely, it does receive but does not wake as well. Because the machine does receive them when turned on and listening, but does not wake when turned off, I am convinced the cause of the problem is my receiving PC, rather than the router or the sender. Some extra info: The receiving machine is a PC running Windows 7 64bit. My router is the Netgear JWNR2000v2. I have the port I use forwarded to my PC's static IP in the router. If anyone could help, or just share your own story with the same problem, maybe we can work this out. Thanks a lot in advance.

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  • Windows 7 caches FTP credentials?

    - by Martin Booka Weser
    On my remote maschine i have an iis 7.5 (win server 2008) and set up an ftp site with iis manager authentication. I then did active directory user isolation and isolated my users to physical folders according to their names. So far, so good. I can access with ftp cliens from everywhere with different test accounts that i previously set up in the iis manager auth. Every user connects to its own folder. When i now tested with windows 7 as a client i did the following. Explorer - computer - right click - add network address - the ip of my remote maschine - user1 - password1 Perfect - it works. I now want to connect with user2. So I deleted this network address and set up a new connection, but with user2 (or even anonymous) instead. Now the strange thing: Windows doesn't even ask me for a password again. It just connects me to the folder of the user1. I already disabled ftp caching in the IIS and i disabled the user1 account in IIS manager authentication! Still, if i set up a network connection with this windows 7 it connects to the folder user1 . No matter which username i use (anonymous, administrator, user2,...). And if i connect with other ftp clients or other computers it all works perfectly. So I assume that this one windows somehow caches the credentials... But then, why does the IIS still accepts this credentials even if i disabled this user1 account??? Thanks.

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  • What Windows service binds a NIC to the network?

    - by Bigbio2002
    I have a server that takes several minutes for the NIC to bind itself to the network upon startup (it has a statically-configured IP). This causes DNS/WINS/Intersite Messaging to fail to start, since they're dependent on a network connection. While I'm still attempting to find a root cause to this issue (I've done firmware updates, checked for any odd drivers/services, no luck so far), but in the meantime, I want to adjust the load order of services to ensure that the NIC binds first before these services attempt to start. The only question is, which service is it? The server is running Server 2008 R2 and only has one NIC installed. (On a side note, there are two other small but odd problems occuring with the server. The server had the issue described in KB2298620, which I've fixed. The other problem occurs in Windows Server Backup. No events appear in the upper portion of the window, despite the fact that backups are running in the background. Whenever I attempt to modify the backup schedule, it gives me the error "Not enough storage is available to process this command" and appears to fail, when, in fact, it actually succeeds. These may be separate issues, but something tells me that some of these might share a common root cause.)

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  • When modern computers boot, what initial setup of RAM do they execute, and how does it exactly work?

    - by user272840
    I know the title reeks of confusion, and some of you might assume I am just wondering about how the computer boots in general, but I'm not. But I'll sort this out for you people now: 1.Onboard firmware is how mostly all modern computer devices work, whether or not with EFI/UEFI(even without "onboard firmware", older computers still employed bank switching, or similar methods with snap-in firmware, cartridges, etc.) 2.On startup there is no "programs" running in the traditional sense yet, i.e. no kernel, OS, user-applications; all of the instructions, especially the very first instruction, is specified by the Instruction Pointer, I am guessing. How is the IP/PC/etc. set to first point to an address for a BIOS/firmware/etc. instruction, and how do the BIOS instructions map themself out in memory prior to startup? 3.Aside from MMIO, BIOS uses certain RAM addresses to have instructions. The big ? comes in when I ask this ... how does BIOS do this? Conclusion: I am assuming that with the very first instruction there is an initial hardware setup for BIOS prior to complete OS bootup. What I want to know is if it's hardware engineered to always work this way, if there's another step in this bootup method I am missing, a gap of information I am unaware of, or how this all works from the very first instruction, and the RAM data itself.

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  • OpenVPN-based VPN server on same system it's "protecting": feasible?

    - by Johnny Utahh
    Scenario: hosted machine (typically a VPS) serving wiki, svn, git, forums, email lists (eg: GNU mailman), Bugzilla (etc) privately to < 20 people. People not on team not allowed access. Seeking VPN-restricted access to said server. Have good user experience with OpenVPN-based servers/clients, but have yet to server-admin such systems. Otherwise, experienced Linux sysadmin. Target system: Ubuntu, probably 12.04. Seeking to put an OpenVPN process on above server to "protect" all the above-mentioned services, enabling only OpenVPN-authorized clients/processes to access above services. (Can easily acquire additional IP address(es) as needed for this setup.) Option: if absolutely needed, can employ an additional, dedicated, "VPN server" VPS simply to be my VPN server "front end." But prefer to have all server processes (VPN server plus other server apps) all running on same machine, if possible. Will consider further if dedicated-VPN-machine setup enables 1. easier installation/administration, 2. better/easier end-user experience, and/or 3. makes system significantly more secure. Any of above feasible? The main intention: create a VPN from purely-hosted resources, and not spend all the effort to make a non-VPN, secure site--which typically means "SSL wrapping" + all the continual webserver-application-update management. Let the VPN server deal with access security, and spend list time pushing said security "down" in the other apps/Apache.

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  • Nginx order of servers

    - by scrat
    I have 3 sites on my server. All are running on gunicorn and use unix sockets to communicate with nginx which routes requests. I got three records in nginx.conf like: server { listen 80; server_name site1.com; location / { proxy_pass http://unix:/tmp/site1.sock; 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; } } For site1, site2, site3. If they are ordered as config for site1 goes first, and then goes config for site2 and site3 everything works good. But when I change the order for example to site2, site1, site3, then site1 becomes routed to site2. What am I doing wrong? Full server nginx.conf before servers configs: user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ## # Gzip Settings ## gzip on; gzip_types text/css application/x-javascript text/x-component text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;

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  • Can Internet data be used by malware when PC off?

    - by Val
    I have noticed over the last month that my off peak data has been used at a rate of approx 350MB per hour - this has meant that I have gone over my quota and slowed down by my ISP to 256k. There is no one in the house using it (2am-8am is my ISPs off peak hours) at that time. My PC and other wireless devices (ipad and iphone) are turned off. I have changed the wireless password on my modem 3 times and it is now 30 digits long. So I don't think someone else is using my wireless access between 2-8am. It has been suggested by my ISP that I may have malware/spyware on my computer. Sorry for my ignorance, but can malware still run if the PC is off? I did look at my modem's log and followed an IP address to a service called Amazon Simple server Storage. Could this company possibly be the culprit? I am not too tech savvy, so any assistance appreciated. I have run a barrage of spyware cleaning software eg malware bytes; spy bot etc.... Cheers Val

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  • Using Active Directory through a Firewall

    - by Adam Brand
    I had kind of a weird setup today where I wanted to enable Windows Firewall on a Windows 2003 R2 SP2 computer that would act as an Active Directory Domain Controller. I didn't see one resource on the Internet that listed what would be required to do this, so I thought I'd list them here and see if anyone has anything to add/sees something that isn't necessary. Ports to Open with "subnet" scope: 42 | TCP | WINS (if you use it) 53 | TCP | DNS 53 | UDP | DNS 88 | TCP | Kerberos 88 | UDP | Kerberos 123 | UDP | NTP 135 | TCP | RPC 135 | UDP | RPC 137 | UDP | NetBIOS 138 | UDP | NetBIOS 139 | TCP | NetBIOS 389 | TCP | LDAP 389 | UDP | LDAP 445 | TCP | SMB 445 | UDP | SMB 636 | TCP | LDAPS 3268 | TCP | GC LDAP 3269 | TCP | GC LDAP Ports to Open with "Any" Scope (for DHCP) 67 | UDP | DHCP 2535 | UDP | DHCP ALSO You need to restrict RPC to use fixed ports instead of everything 1024. For that, you need to add two registry keys: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters Registry value: TCP/IP Port Value type: REG_DWORD Value data: <-- pick a port like 1600 and put it here HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters Registry value: DCTcpipPort Value type: REG_DWORD Value data: <-- pick another port like 1650 and put it here ...don't forget to add entries in the firewall to allow those in (TCP, Subnet scope). After doing all that, I was able to add a client computer to the AD domain (behind Windows Firewall) and log in successfully.

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