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• SQL Server: error when connecting

  - by atricapilla

  (migrated from stackoverflow) The application I'm using tries to connect SQL Server named instance running on a dedicated database server. Here's the error I'm getting: The TCP/IP connection to the host <instance_name>, port 1433 has failed. Error: Connection refused: connect. Is the firewall blocking my access or what? Should I dedicate a different port for this application?

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• Port forwarding not working?

  - by rphello101

  I'm trying to set up an Apache Server to be accessed publicly. I'm using a Netgear R4500 router hooked up to a Motorola SB6121 modem. I can access my server on my computer by typing in my IP address. After following the instructions to forward port 80 so I can access the server from other computers, it does not work (see image). I get "This webpage is not available". I am forwarding to the IP address of my computer. Using this Network Port Scanner Tool, it says "80/tcp filtered http", which, as I understand it, means forwarding did not work correctly. In my Apache httpd file, I have: ServerName 192.168.1.13:80 and Listen 192.168.1.13:80 Anyone know what's wrong or have something I can try? click to enlarge

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• diagnostic software for wifi adapter

  - by Nathan Fellman

  I'm having trouble with my wifi connection. Is there any software out there that can help me determine if the problem is in the drivers or in the hardware? Regretfully, I'm working on Vista Edit: The problem I'm having is that the Vista reports that the wireless radio is connected, shows an IP and all, the router also shows that the computer is connected, but there's no connectivity. I can't logon to the router, and I can't even ping it. When I ping it I get the response: General Failure I have tried connecting with and without various wireless security protocols. I have tried disabling the wireless adapter and re-enabling it from the Device Manager I have tried updating the driver None of this has helped. When I connect via Ethernet (with a cable, that is), everything works fine. Edit: I'm not using any firewall on the computer, that I'm aware of. The IP address for the WIFI adapter is similar to the one for the LAN adapter. They differ by one.

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• SSH command from PHP script - nothing, yet work at cmd line

  - by waxical

  I'm working on an EC2 box and trying to SSH command another box. The command works in command-line, even php -a interactive. However it does not work when running as apache. Example cmd:- system('ssh -i /home/me/keys/key.pem user@ip-xx-xxx-xxx-xxx-end.ip "ls"'); I've tried adding apache to wheel group, and gshadow on both boxes. I've also just tried chowning the pem file to apache. Nothing. Yet the command response fine in the two other use cases outlines. What's going on here? Anyone know?

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• make sure i've configured dns correctly

  - by user22817

  Hi, On my server with Windows Server 2008, i've added a new zone with my new domain: biografica.ro. I've added a name server for it: ns.biografica.ro and the ip of the server. Also i added two A hosts for ns.biografica.ro and www.biografica.ro. I've also defined first that name server on the site where i bought the domain and pointed it to my ip. Now, i understood that i have to wait 24-48 hours for this new domain to be available online. Question: - is this a way to check on the server that i've succesfully configured it? For instance: nslookup biografica.ro or nslookup www.biografica.ro or ping www.biografica.ro do not work locally, on the server... Can you give me an advice? Thanks.

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• BIND DNS server (Windows) - Unable to access my local domain from other computers on LAN

  - by Ricardo Saraiva

  I have a BIND DNS server running on my Windows 7 development machine and I'm serving pages with WAMPSERVER. My ideia is to develop some tools (in PHP) for my intranet at work and I want them to be accessible via LAN in this format: http://tools.mycompany.com I've already placed BIND and I can access http://tools.mycompany.com on the machine that holds BIND server, but I cannot access it from other LAN computers. I've done the following on my router: defined static IP's for all LAN computers set Port Forwarding to my server (remember: it serves DNS and Web pages) set DNS server configuration to point to my LAN server On LAN computers, I went to Local Area Network properties and also changed the DNS server IP in order to point to my local DNS server. If it helps, here is my named.conf file: options { directory "c:\windows\SysWOW64\dns\etc"; forwarders {127.0.0.1; 8.8.8.8; 8.8.4.4;}; pid-file "run\named.pid"; allow-transfer { none; }; recursion no; }; logging{ channel my_log{ file "log\named.log" versions 3 size 2m; severity info; print-time yes; print-severity yes; print-category yes; }; category default{ my_log; }; }; zone "mycompany.com" IN { type master; file "zones\db.mycompany.com.txt"; allow-transfer { none; }; }; key "rndc-key" { algorithm hmac-md5; secret "qfApxn0NxXiaacFHpI86Rg=="; }; controls { inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { "rndc-key"; }; }; ...and a single zone I've defined - file db.mycompany.com.txt: $TTL 6h @ IN SOA tools.mycompany.com. hostmaster.mycompany.com. ( 2014042601 10800 3600 604800 86400 ) @ NS tools.mycompany.com. tools IN A 192.168.1.4 www IN A 192.168.1.4 On the file above 192.168.1.4 is the IP of the local machine inside my LAN. Can someone help me here? I need my web pages to be accessible from other computers inside my LAN using my custom domain name. I've tried on other computers and they can access my server via http://192.168.1.4/, but no able when using http://tools.mycompany.com . Please, consider the following: I'm completely new to BIND I have basic knowledge in Apache configuration Thanks a lot for your help.

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• Vmware Workstation Development Server on Laptop

  - by Koobz

  I'm running an Ubuntu guest OS on my Windows 7 laptop. Currently, I have it set up for bridged networking. The guest is os is configured for a static ip of 192.168.1.115, which depending on the network I'm connected to, may not be available. When I want to view my development work I hit that up in my web browser. I'm really looking for the following scenario: 1) My guest OS ip address stays constant. 2) I can access my guest os even if I don't have an internet connection, or a lan/router. 3) I can share files with my guest/host. How does one accomplish this using VMware Workstation?

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• Virtual Private Hosting DNS configuration

  - by Ciel

  I did a great deal of reading here before posting this because I didn't want to post a duplicate - but I'm on a bit of a deadline and getting frustrated, so here goes... I very, very, very sincerely apologize if this is long winded or hard to read. Please - please just ask for any information or clarification and I will give it as quickly as I possibly can. This has become very frustrating to me and this is the last place I know to turn. I have no experience with setting up DNS, no experience with nameservers, and no peers to go to for help. So this is kind of my last ditch effort. The task of setting up a private server has, through circumstances beyond my control, fallen into my lap. I own a domain (hereafter referred to as yyy.com) and have always used shared hosting - I buy a package and just point it to the domain nameservers they give me. It's always been simple. yyy.com is registered with network solutions Now I have purchased a Virtual Private Hosting package from GoDaddy.com - and it comes with Plesk 11. I have no earthly idea how to begin to get the right nameserver for yyy.com. I have gone through the instructions and have wound up exceedingly frustrated. I have 2 IP addresses from GoDaddy for the server. This is what I have so far, and I cannot tell if it is working (Since propogation takes so long, it is extremely hard to test for me) IP 1 : XX.XX.XX.XX IP 2 : YY.YY.YY.YY (obviously hidden for privacy) Now after going through the documentation setup and waiting a few days, this is the setup I have - and so far it does not appear to be working. Host Record type Value XX.XX.XX.XX / 24 PTR yyy.com. yyy.com. NS ns1.yyy.com. yyy.com. A XX.XX.XX.XX yyy.com. MX (10) mail.yyy.com. ftp.yyy.com. CNAME yyy.com. ipv4.yyy.com. A XX.XX.XX.XX mail.yyy.com. A XX.XX.XX.XX mssql.yyy.com. A XX.XX.XX.XX ns1.yyy.com. A XX.XX.XX.XX ns2.yyy.com. A YY.YY.YY.YY webmail.yyy.com. A XX.XX.XX.XX www.yyy.com. CNAME yyy.com. yyy.com is pointing to both ns1.yyy.com and ns2.yyy.com Can anyone give me some assistance here? This is a learning experience for me and days of documentation have left me very confused.

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• How does firefox cache DNS requests/replies?

  - by Zombies

  I was wondering how, if it all, does firefox cache say, google.com to its respective IP?

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• Routing Essentials

  - by zharvey

  I'm a programmer trying to fill a big hole in my understanding of networking basics. I've been reading a good book (Networking Bible by Sosinki) but I have been finding that there is a lot of "assumed" information contained, where terms/concepts are thrown at the reader without a proper introduction to them. I understand that a "route" is a path through a network. But I am struggling with visualizing some routing-based concepts. Namely: How do routes actually manifest themselves in the hardware? Are they just a list of IP addresses that get computed at the network layer, and then executed by the transport? What kind of data exists in a so-caleld routing table? Is a routing-table just the mechanism for holding these lists of IP address (read above)? What are the performance pros/cons for having a static route, as opposed to a dynamic route?

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• impossible to connect.. days trying..

  - by dany

  I have a problem: I am on Debian. I configured my nic with a static ip (192.168.1.56). When I try to connect to a network, initially with ifconfig eth2 I get (correctly): eth2 inet addr:192.168.1.56 .... inet6 addr: fe80:221:ff:fe96:4598/64 but after a few seconds the 102.168.1.56 disappears and after some other seconds disappears the inet6 address too. When I press in the nm-applet it requires me the password but in the meantime it try to connect. At uni, the connection is a DHCP one. It works for the first few seconds but after it doesn't. Any possible solution? Here it is the relevant part of the syslog: (static ip configuration) http://pastebin.com/u3BPAsda

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• OpenVPN Configuration - Windows 7 client & debian server

  - by Guillaume

  I recently formatted my Windows 7 computer and lost my client's config files for OpenVPN. I recovered the certificates and default config that were left on the server but I haven't managed to make the whole thing work again. I assume the server's config and routing table are OK because it was working before (although quite some time ago). Would any of you experts be able to help? server.conf # Serveur TCP/666 mode server proto udp port 666 dev tun # Cles et certificats ca ca.crt cert server.crt key server.key dh dh1024.pem tls-auth ta.key 0 cipher AES-256-CBC # Reseau server 10.8.0.0 255.255.255.0 #push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 208.67.222.222" push "dhcp-option DNS 208.67.220.220" push "redirect-gateway def1" keepalive 10 120 # Securite user nobody group nogroup chroot /etc/openvpn/jail persist-key persist-tun comp-lzo # Log verb 3 mute 20 status openvpn-status.log log-append /var/log/openvpn.log client.conf # Client client dev tun proto udp remote *my server's ip address*:666 cipher AES-256-CBC # Cles ca ca.crt cert client1.crt key client1.key tls-auth ta.key 1 # Securite nobind persist-key persist-tun comp-lzo verb 3 Routing table on debian server when OpenVPN server is running: Destination Gateway Genmask Indic Metric Ref Use Iface 10.8.0.2 * 255.255.255.255 UH 0 0 0 tun0 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 my server's ip * 255.255.255.0 U 0 0 0 eth0 default 72815.trg.dedic 0.0.0.0 UG 0 0 0 eth0 Routing table on Windows 7 client (OpenVPN not working) =========================================================================== Interface List 19...00 f0 8a 1b 6e 5c ......TAP-Win32 Adapter V9 12...90 2e 34 33 84 7b ......Atheros AR8151 PCI-E Gigabit Ethernet Controller ( NDIS 6.20) 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface 16...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2 =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.11 20 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.1.0 255.255.255.0 On-link 192.168.1.11 276 192.168.1.11 255.255.255.255 On-link 192.168.1.11 276 192.168.1.255 255.255.255.255 On-link 192.168.1.11 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.1.11 276 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.1.11 276 =========================================================================== Persistent Routes: None IPv6 Route Table =========================================================================== Active Routes: [...] =========================================================================== Persistent Routes: None And when the link is established between my client and the server: The server's routing table stays the same. The client's becomes: =========================================================================== Interface List 19...00 f0 8a 1b 6e 5c ......TAP-Win32 Adapter V9 12...90 2e 34 33 84 7b ......Atheros AR8151 PCI-E Gigabit Ethernet Controller ( NDIS 6.20) 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface 16...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2 =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.11 20 0.0.0.0 128.0.0.0 10.8.0.5 10.8.0.6 30 10.8.0.1 255.255.255.255 10.8.0.5 10.8.0.6 30 10.8.0.4 255.255.255.252 On-link 10.8.0.6 286 10.8.0.6 255.255.255.255 On-link 10.8.0.6 286 10.8.0.7 255.255.255.255 On-link 10.8.0.6 286 my server's ip 255.255.255.255 192.168.1.1 192.168.1.11 20 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 128.0.0.0 128.0.0.0 10.8.0.5 10.8.0.6 30 192.168.1.0 255.255.255.0 On-link 192.168.1.11 276 192.168.1.11 255.255.255.255 On-link 192.168.1.11 276 192.168.1.255 255.255.255.255 On-link 192.168.1.11 276 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.1.11 276 224.0.0.0 240.0.0.0 On-link 10.8.0.6 286 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.1.11 276 255.255.255.255 255.255.255.255 On-link 10.8.0.6 286 =========================================================================== Persistent Routes: None What's working: Server and client do connect to each other, SSL certificates are OK. The client gets an IP (10.8.0.6) from the server OpenVPN client is started as an administrator. But: I cannot ping the other one on either side. 'Gateway' value is empty on client's side (in the adapter's "status" window). Client has got no internet access when the link is up. Ideal configuration: I only want the client to be able to use the server's Internet access and access its resources (MySQL server in particular). I do not need or want the server to access the client's local network. The client needs to be able to access it's local network, although all Internet traffic should be redirected to the VPN link. I spent a considerable amount of time on this but it's still not working, any help would be much appreciated. Thanks :)

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• Configuring subdomains for a machine (Win2k8) in a lan

  - by RMS

  I am currently setting up a windows 2008 server to host a website with multiple subdomains, all accessible only within the lan. also, there is no active directory. what I did is : 1 - computer name : 'web' 2 - in IIS, I added a site binding as 'site1.web' to the default web site 3 - added DNS role to the server 4 - added 'web' as principal zone in direct lookup zones (default options) 5 - added CNAME 'site1' From a client machine, in tcpip config I added the ip address of 'web' to the DNS list in addition to the ISP DNS. (client machine ip is from DHCP) Now browsing to 'http://web' or 'http://site1.web' works correctly. My question is, is it possible throught additional steps in the server to have the websites accessible without requiring the DNS config in all the client machines ? thanks in advance

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• How do i mitigate DDOS attacks on static servers?

  - by acidzombie24

  Here is a slightly different take on DDOS attacks. Rather than a server with dynamic content being attack i was curious how to deal with attacks on servers with STATIC CONTENT. This means cpu tends to not be an issue. Its either bandwidth or connection problems. How would i mitigate a DDOS attack knowing nothing about the attacker (for example country, ip address or anything else). I was wondering is shorting the timeout and increasing amount of connections is an acceptable solution? Or maybe that is completely useless? Also i would limit the amount of connections per IP address. Would the above help or be pointless? Keeping in mind everything is static checking for multiple request of the same page (html, css, js, etc) could be a sign of a attack. What are some measures i can take on a static content server?

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• Secure copying (file transfer) between two Linux servers in the same datacenter (Linode)

  - by MountainX

  I have two Linodes in the same data center. I want to copy files from one to the other each night or on demand (for about the next month, until this project is finished). So I'm thinking about using rsync. My question is how do I set up the two Linode servers to communicate via private IP addresses securely? Both servers are SSH hardened, they use denyhosts and have a fairly restrictive iptables setup. I know I need to first assign private IP addresses to each server, then configure static networking according to this guide. What is next? What SSH or iptables settings are needed to allow these two servers to communicate? What further info do I need to supply in this question? I'm looking for a basic step-by-step guide for how to do this.

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• Should I quit using Ifconfig?

  - by Zhen

  With the servers that mount Infiniband cards, when I use the ifconfig command I have the warning: Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes. Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly. Ifconfig is obsolete! For replacement check ip. Should I quit using ifconfig? It is deprecated in favor of ip command? Or it will be update in the near future.

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• Remote Desktop Connection over VPN on mac

  - by Diego Faria

  I'm trying to connect to a Windows computer on over a VPN connection using Remote Desktop connection. I opened Network on mac and created a new connection. Interface: VPN. VPN Type: PPTP. I filled the inputs for server address, account name, password and applied. I connect the VPN and it connects. I open Remote Desktop Connection and put the IP of the machina i want to connect but it dont connect, a problem occurs saying that the machina may be turned off and etc. But in a windows machine I can connect there and the machine is up and running. On my mac I ping to the ip address that a want to connect and it has no response. I think that the vpn have a problem, is there a way for me to certificate that i am on the vpn network ? Whats going on?

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• Can't ping self

  - by Paddy

  I have a wireless internet connection setup on my Mac. (v10.5.6) Am connected to the internet and everything is running smoothly. I recently discovered a quirky behaviour while setting up apache web server. When i typed in my dynamic ip (http://117.254.149.11/) in the webbrowser to visit my site pages it just timed out. In terminal i tried pinging localhost and it worked. $ ping localhost PING localhost (127.0.0.1): 56 data bytes 64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.063 ms 64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.056 ms 64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.044 ms But if i pinged my ip it would just time out. $ ping 117.254.149.11 PING 117.254.149.11 (117.254.149.11): 56 data bytes ^C --- 117.254.149.11 ping statistics --- 10 packets transmitted, 0 packets received, 100% packet loss Pinging any other site works though. I am completely stumped. Any help would be greatly appreciated.

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• rsyslog appears to act on old configuration

  - by Jeff Lee

  I'm using a template to dynamically generate rsyslog filenames. I've made some changes from my original format, but rsyslog still appears to be using both the new template and the old after restarting. My filename template went from this: $template RemoteDailyLog,"/var/log/remote/%hostname%/%$year%/%$month%/%$day%.log" To this: $template RemoteDailyLog,"/var/log/remote/%hostname%/%fromhost-ip%/%$year%/%$month%/%$day%.log" I stopped rsyslogd using service rsyslog stop, deleted all of my log files using rm -rf /var/log/remote/*, and then restarted rsyslogd with service rsyslog start. The problem is rsyslog seems to be building folder structures of the type "/var/log/remote/%hostname%/%$year%/%$month%/%$day%.log" (i.e., without the remote IP), which no longer appears anywhere in my configuration. Is it possible that old log or config data have been cached somewhere and are being preserved through the server restart? This is creeping me out a little.

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• Second network card configuration not working.

  - by Sebas

  I have 4 servers running Centos 5. All of them have two ethernet network cards. I have configured 192.168.1.x IP addresses on their eth0 card. They are all connected to the same switch using their eth0 card and they are all working. I have configured 10.72.11.x IP addresses on their eth1 card.They are all connected to the same switch - a different one from the switch used with eth0 card - using their eth1 card and they are NOT all working. Their configuration files is like: DEVICE=eth1 BOOTPROTO=static IPADDR=10.72.11.236 BROADCAST=10.72.11.191 NETMASK=255.255.255.192 NETWORK=10.72.11.128 HWADDR=84:2B:2B:55:4B:98 IPV6INIT=yes IPV6_AUTOCONF=yes ONBOOT=yes The interfase is starting and configured as I need. [root@sql1 network-scripts]# ifconfig eth0 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:97 inet addr:192.168.1.105 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::862b:2bff:fe55:4b97/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2981 errors:0 dropped:0 overruns:0 frame:0 TX packets:319 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:386809 (377.7 KiB) TX bytes:66134 (64.5 KiB) Interrupt:36 Memory:da000000-da012800 eth1 Link encap:Ethernet HWaddr 84:2B:2B:55:4B:98 inet addr:10.72.11.236 Bcast:10.72.11.191 Mask:255.255.255.192 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:48 Memory:dc000000-dc012800 I also added a route-eth1 file that looks like: 10.0.0.0/8 via 10.72.11.254 Routing looks fine to me: [root@sql1 network-scripts]# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.72.11.192 0.0.0.0 255.255.255.192 U 0 0 0 eth1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 10.0.0.0 10.72.11.254 255.0.0.0 UG 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 But I cannot ping one server from the other. [root@sql1 network-scripts]# ping 10.72.11.235 PING 10.72.11.235 (10.72.11.235) 56(84) bytes of data. From 10.72.11.236 icmp_seq=1 Destination Host Unreachable From 10.72.11.236 icmp_seq=2 Destination Host Unreachable From 10.72.11.236 icmp_seq=3 Destination Host Unreachable From 10.72.11.236 icmp_seq=4 Destination Host Unreachable From 10.72.11.236 icmp_seq=5 Destination Host Unreachable From 10.72.11.236 icmp_seq=6 Destination Host Unreachable ^C --- 10.72.11.235 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6033ms , pipe 3 What am I doing wrong?

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• Trouble configuring sendmail to relay mail

  - by Warren Schubert

  I am trying to configure sendmail and ufw on an ubuntu server (ServerA) so that another server (ServerB) can send mail through it. In my /etc/mail/access file I have the following line (a.b.c.d is the IP of ServerB): Connect:a.b.c.d RELAY My ufw status shows the following rule I added: 25/tcp ALLOW a.b.c.d When I telnet from ServerA I get through: telnet localhost 25 When I telnet from ServerB I don't (w.x.y.z is the IP of ServerA): telnet w.x.y.z 25 telnet: Unable to connect to remote host: Connection refused I did restart the sendmail daemon after editing the access file. What could I be missing? Something in sendmail.mc? Edit: netstat -an|grep -w 25 tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN

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• ISPconfig3 + CentOS 6.2 , confused on how to move forward after initial install?

  - by Damainman

  I installed ISPCONFIG3 on centos 6.2 using the great guide on howtoforge.com. Everything is up and running and I can access ISPCONFIG via a browser. However I am not sure how to move forward with the initial setup so I can setup the very first account and get my website live. Details: Only have 1 server, the centos+ispconfig is running on a virtual machine of XEN XCP. I setup the server name to be server1.mydomain.com. I only have 2 usable ips. I plan to use them as follows: xx.xx.xx.01 : For my website and the websites of all accounts I add. xx.xx.xx.02 : For ns1.mydomain.com and ns2.mydomain.com (Yea I know they should be different ips at different locations, but this is what I have to work with at the moment.... ) I registered the nameservers at my registrar with the .02 ip. I want to use bind and ISPconfig to run the DNS on my server itself and not via my registrar. Right now if I go to the .01 IP it shows the centos+apache successful install page. So to break it down basically I am not sure where to start when it comes to: (What to consider and what to do to setup the first domain on the server) Telling bind to use the name server domains with .02. Setting up my First website(which will be my main website) in ISPconfig so mydomain.com resolves properly to my server. Make it so when you go to the .01 IP, it either redirects or shows the contents of my main website. (If this can't be done, then any advice is appreciated) Making sure that when I add a new domain, it automatically puts in the proper information for the domain so it points to the right mail, database, dns, entry. If I overlooked a tutorial then please feel free to let me know, and any advice would be greatly appreciated. Some of the tutorials I found were not specific to doing everything on only one server with Centos+Apache+Bind. Right now all I did was install centos and install ISPconfig3. Trying to move forward correctly so I don't mess up everything I did by not knowing what to do. Thank you in advance!!

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• Error while trying to configure VLAN with Open vSwitch

  - by Abhishek Chanda

  I am trying to connect a number of VMs using Open vSwitch. The VMs are on two separate physical boxes. Here is what I did: Created two tap devices on one physical host sudo ip tuntap add mode tap tap0 and same for tap1 Bring them up sudo ip link set tap0 up Add them as ports to Open vSwitch (br0 was created as a OVS bridge previously) sudo ovs-vsctl add-port br0 tap0 tag=1 Now I booted the VMs (using VirtualBox) and assigned addresses 192.168.122.11 and 192.168.122.12. Now when I try to ping one VM from another, I get the error Connect: network is unreachable. Since both VMs are connected to the switch on the same VLAN, I expect to be able to ping one from another. What is going wrong here?

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• Trouble with resolving hostnames on CentOS using Bind

  - by cabaret

  I'm taking a course on server administration at school and I have managed to set up virtual hosting in apache and a dns server on a virtual machine. However, I have now set up an old pc to run CentOS and I'm trying the same on that box. The problem I ran into now is that I can't resolve hostnames from the linux box. I have set up the nameserver in /etc/resolv.conf to the IP of the CentOS machine, but when I try for example ping google.com I get ping: unknown host google.com However, when I do ping 66.102.13.105 (which is the Google IP, figured that out by pinging on my mac) I get: PING 66.102.13.105 (66.102.13.105) 56(84) bytes of data. 64 bytes from 66.102.13.105: icmp_seq=1 ttl=52 time=15.5 ms Slightly confused why this is happening. Could it be because of my router sitting in between the linux machine and the cable modem? It's a D-Link somethingsomething. Thanks in advance

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• Assisting a user using VNC

  - by wizlog

  I'm trying to help a friend with their computer remotely. He has a version of VNC, I'm not sure which one, so I downloaded and installed the VNC Viewer and Listening Viewer. I ask my friend for his IP address and port number, and he tells me that every time he's used it, the person giving him assistance (remotely controlling his computer) gave him some kind of number. I should note that my friend is not tech savy, and it may have been an IP address, but I'm not sure. What kind of number would the user be looking for? Does this indicate his version of VNC, Does that even matter? I am completly forign to VNC and don't know where to begin looking for an answer myself, and (for whatever reason) I can't ask my friend to figure out what version of VNC he is using.

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