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• port forwarding/network settings preventing from game hosting

  - by Xitcod13

  I asked where to post this question on stackoverflow meta and they directed me here. Im on wireless connection and I want to host games in StarCraft: Brood War and i've been looking everywhere on how to accomplish that. My internet is amazingly fast so its not an internet problem (and when i play other peoples games dont experience lag) I found out that i need to have a static IP but I have already checked that i do (i downloaded a program to make my id static and it already was; The program asked for which router I used So i think it checked the router settings already) I found out that i need to allow Sc access through the firewall which i already did (i have zone-alarm but I allowed it everything possible except receiving emails lol) I have recently noticed that few people actually can join my games but most of them cannot. I dont know whats going on here. I really want to be able to host games overall how do I go about checking what is wrong with the network. Update: Alright I figured out what i did wrong in the first part I did not actually set up forwarding on the router -.- I have tried to fix my mistake. I went to forwarding options in my router (as this guide for my specific router suggests) but when i click ok I get a message incorrect ip address. 192.168.1.1 is my routers address. The default address that appears there is 192.168.1 (blank) I have set it to my computers current Ip4 adress which 192.168.1.23 I hope this works If so i will post it as an answer and mark it.

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• Anonymous Login attemps from IPs all over Asia, how do I stop them from being able to do this?

  - by Ryan

  We had a successful hack attempt from Russia and one of our servers was used as a staging ground for further attacks, actually somehow they managed to get access to a Windows account called 'services'. I took that server offline as it was our SMTP server and no longer need it (3rd party system in place now). Now some of our other servers are having these ANONYMOUS LOGIN attempts in the Event Viewer that have IP addresses coming from China, Romania, Italy (I guess there's some Europe in there too)... I don't know what these people want but they just keep hitting the server. How can I prevent this? I don't want our servers compromised again, last time our host took our entire hardware node off of the network because it was attacking other systems, causing our services to go down which is really bad. How can I prevent these strange IP addresses from trying to access my servers? They are Windows Server 2003 R2 Enterprise 'containers' (virtual machines) running on a Parallels Virtuozzo HW node, if that makes a difference. I can configure each machine individually as if it were it's own server of course... UPDATE: New login attempts still happening, now these ones are tracing back to Ukraine... WTF.. here is the Event: Successful Network Logon: User Name: Domain: Logon ID: (0x0,0xB4FEB30C) Logon Type: 3 Logon Process: NtLmSsp Authentication Package: NTLM Workstation Name: REANIMAT-328817 Logon GUID: - Caller User Name: - Caller Domain: - Caller Logon ID: - Caller Process ID: - Transited Services: - Source Network Address: 94.179.189.117 Source Port: 0 For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Here is one from France I found too: Event Type: Success Audit Event Source: Security Event Category: Logon/Logoff Event ID: 540 Date: 1/20/2011 Time: 11:09:50 AM User: NT AUTHORITY\ANONYMOUS LOGON Computer: QA Description: Successful Network Logon: User Name: Domain: Logon ID: (0x0,0xB35D8539) Logon Type: 3 Logon Process: NtLmSsp Authentication Package: NTLM Workstation Name: COMPUTER Logon GUID: - Caller User Name: - Caller Domain: - Caller Logon ID: - Caller Process ID: - Transited Services: - Source Network Address: 82.238.39.154 Source Port: 0 For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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• Apache2 default vhost in alphabetical order or override with _default_ vhost?

  - by benbradley

  I've got multiple named vhosts on an Apache web server (CentOS 5, Apache 2.2.3). Each vhost has their own config file in /etc/httpd/vhosts.d and these vhost config files are included from the main httpd conf with... Include vhosts.d/*.conf Here's an example of one of the vhost confs... NameVirtualHost *:80 <VirtualHost *:80> ServerName www.domain.biz ServerAlias domain.biz www.domain.biz DocumentRoot /var/www/www.domain.biz <Directory /var/www/www.domain.biz> Options +FollowSymLinks Order Allow,Deny Allow from all </Directory> CustomLog /var/log/httpd/www.domain.biz_access.log combined ErrorLog /var/log/httpd/www.domain.biz_error.log </VirtualHost> Now I when anyone tries to access the server directly by using the public IP address, they get the first vhost specified in the aggregated config (so in my case it's alphabetical order from the vhosts.d directory). Anyone accessing the server directly by IP address, I'd like them to just get an 403 or a 404. I've discovered several ways to set a default/catch-all vhost and some conflicting opinions. I could create a new vhost conf in vhosts.d called 000aaadefault.conf or something but that feels a bit nasty. I could have a <VirtualHost> block in my main httpd.conf before the vhosts.d directory is included. I could just specify a DocumentRoot in my main httpd.conf What about specifying a default vhost in httpd.conf with _default_ http://httpd.apache.org/docs/2.2/vhosts/examples.html#default Would having a <VirtualHost _default_:*> block in my httpd.conf before I Include vhosts.d/*.conf be the best way for a catch-all?

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• Extending a home wireless network using two routers running tomato

  - by jalperin

  I have two Asus RT-N16 routers each flashed with Tomato (actually Tomato USB). UPSTAIRS: Router 'A' (located upstairs) is connected to the internet via the WAN port and connected via a LAN port to a 10/100/1000 switch (Switch A). Several desktops are also attached to Switch A. Router A uses IP 192.168.1.1. DOWNSTAIRS: I've just acquired Router 'B' and set it to IP 192.168.1.2. I have a cable running from Switch A downstairs to another switch (Switch B). Tivo, a blu-ray player and a Mac are connected to Switch B. My plan was to connect Router B to Switch B so that I have improved wireless access downstairs. (The wireless signal from Router A gets weak downstairs in a number of locations.) How should I configure Router B so that all devices in the house can see and talk to one another? I know that I need to change DHCP on Router B so that it doesn't cover the same range as DHCP on Router A. Should I be using WDS on the two routers, or is that unnecessary since I already have a wired connection between the two routers? Any other thoughts or suggestions? Thanks! --Jeff

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• Connect two networks

  - by Meek Barrios

  Connecting two different offices with a wireless link and linux boxes. Hardware: 2 CISCO RV42, 2 Dual Homed Linux Boxes running debian, 2 2Wire and 2 AirMax 5 Configuration is: Office A LAN A (10.1.1.0/24) -> RV42 A (WAN1 - 10.1.1.254) -> 2Wire A (Internet) LINUX A ( ETH0 (LAN) 10.1.1.253, ETH1 (LINK) (10.1.3.3) Wireless Link --- AirMax A <-> AirMax B connected as Wireless Bridge Office B LAN B (10.1.2.0/24) -> RV42 B (WAN1 - 10.1.2.254) -> 2Wire B (Internet) LINUX B ( ETH0 (LAN) 10.1.2.253 -> ETH1 (LINK) (10.1.3.4) Network configuration is: LAN A - Default Gateway 10.1.1.254 RV42 A - Static Route 10.1.3.0/24 on 10.1.1.253 Static Route 10.1.2.0/24 on 10.1.1.253 Default on 192.168.1.1 (WAN1 Internet Access) Linux A - ETH0 10.1.1.253 netmask 255.255.255.0 gw 10.1.1.254 ETH1 10.1.3.3 netmask 255.255.255.0 gw 10.1.3.1 AIRMAX A - 10.1.3.1 netmask 255.255.255.0 gw 10.1.3.1 LAN B - Default Gateway 10.1.2.254 RV42 B - Static Route 10.1.3.0/24 on 10.1.2.253 Static Route 10.1.1.0/24 on 10.1.2.253 Default on 192.168.1.1 (WAN1 Internet Access) Linux B - ETH0 10.1.2.253 netmask 255.255.255.0 gw 10.1.2.254 ETH1 10.1.3.4 netmask 255.255.255.0 gw 10.1.3.2 AIRMAX B - 10.1.3.2 netmask 255.255.255.0 gw 10.1.3.2 Both linux have ip_forward set to 1 and the following on the iptables: iptables -F iptables -X iptables -P FORWARD ACCEPT iptables -P INPUT ACCEPT iptables -P OUTPUT ACCEPT I can ping from Linux B any ip on 10.1.1.0/24 segment and on linux A any ip on 10.1.2.0/24 segment however I cannot connect to HTTP or FTP on those machines. From LAN A I cannot see any other network. I'm looking for some advice for this configuration or a better solution. Regards

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• Cisco Catalyst 3550 + Alteon 184 Load-Balancing Issues

  - by upkels

  I have just deployed a couple Cisco Catalyst 3550 switches, and a couple Alteon 184 Web Switches for load-balancing. I can ping all RIPs and VIPs to/from the Alteon. Topology Before: (server) <- (Alteon) <- (Internet) Topology Now: (server) <- (3550) <- Alteon <- (Internet) Cisco Port Configuration (Alteon Uplink Port): description LB_1_PORT_9_PRIMARY switchport access vlan 10 switchport mode access switchport nonegotiate speed 100 duplex full Alteon Port 9 Configuration (VLAN 10 WAN): >> Main# /c/port 9/cur Current Port 9 configuration: enabled pref fast, backup gig, PVID 10, BW Contract 1024 name UPLINK >> Main# /c/port 9/fast/cur Current Port 9 Fast link configuration: speed 100, mode full duplex, fctl none, auto off Cisco Configuration (Load-Balanced Servers Port): description LB_1_PORT_1_PRIMARY switchport access vlan 30 switchport mode access switchport nonegotiate speed 100 duplex full Alteon Port 1 Configuration (VLAN 30 LOAD-BALANCED LAN): >> Main# /c/port 1/cur Current Port 1 configuration: enabled pref fast, backup gig, PVID 30, BW Contract 1024 name LB_PORT_1 >> Main# /c/port 1/fast/cur Current Port 1 Fast link configuration: speed 100, mode full duplex, fctl both, auto on Each of my servers are on vlan 10 and 30, properly communicating. I have tried to turn on VLAN tagging on the Alteon, however it seems to cause all communications to stop working. When I tcpdump -i vlan30 on any of the webservers, I see normal ARP communications, and some STP communications, which may or may not be part of the problem: ... 15:00:51.035882 STP 802.1d, Config, Flags [none], bridge-id 801e.00:11:5c:62:fe:80.8041, length 42 15:00:51.493154 IP 10.1.1.254.33923 > 10.1.1.1.http: Flags [S], seq 707324510, win 8760, options [mss 1460], length 0 15:00:51.493336 IP 10.1.1.1.http > 10.1.1.254.33923: Flags [S.], seq 3981707623, ack 707324511, win 65535, options [mss 1460], len gth 0 15:00:51.493778 ARP, Request who-has 10.1.3.1 tell 10.1.3.254, length 46 etc... I'm not sure if I've provided enough information, so please let me know if any more is necessary. Thank you!

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• RouterLess, house-wired network using multiple powerline adapters

  - by Cliff Arnell

  related to the 'old days' of one ethernet cable tapped with Ts for each monitor.... my question might be very simple... or not. I have an over-the-air internet provider with a wire dish with a powered transceiver and cat5 cable out of the providers supplied modem. I'm presently connecting the output of the modem into my wireless router which sends the internet signal all over the house. Standard stuff, I believe. My Question. Can I just connect the output of the modem into 1 powerline adapter and tie all my equipment such as computer, printer, laptop, Tivo recorder, etc. into 1-each local powerline adapters located near each devices resulting in a 'house-wired' network and no router? I'm bothered by the idea that my over-the-air provider might be using something in my router to establish and keep my IP connection alive. I did have to configure the router for my IP, a router which, in my proposed scenario, would no longer exist. Thank you for your help.

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• Cisco IOS ACL: Don't permit incoming connections just because they are from port 80

  - by cjavapro

  I am going much based on my memory and I may not be correct on all of this. On a Cisco 851 (IOS) that uses a BVI or a bridge-route (the servers on the inside are configured with static and public IP addresses). I would apply two access lists (both end with deny ip any any log) on FastEthernet4 (the WAN port). There would be one for FA4 in and another for FA4 out. FA4 out would have a line like access-list 110 permit 98.76.54.0 0.0.0.255 gt 1023 any eq http I think this means from 98.76.54.* with a from port of at least 1024 can connect to any other machine with a destination port 80. So, then I have to allow the response to the HTTP connection. FA4 in would have a line like access-list 120 permit any eq http 98.76.54.0 0.0.0.255 gt 1023 Now the problem with that is that anybody on the outside can set their from port to port 80 and then connect to any inside port that is at least 1024. How do we prevent this and require the incoming data to be a response to the outgoing data.

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• Iptables ignoring a rule in the config file

  - by Overdeath

  I see lot of established connections to my apache server from the ip 188.241.114.22 which eventually causes apache to hang . After I restart the service everything works fine. I tried adding a rule in iptables -A INPUT -s 188.241.114.22 -j DROP but despite that I keep seeing connections from that IP. I'm using centOS and i'm adding the rule like thie: iptables -A INPUT -s 188.241.114.22 -j DROP Right afther that I save it using: service iptables save Here is the output of iptables -L -v ` Chain INPUT (policy ACCEPT 120K packets, 16M bytes) pkts bytes target prot opt in out source destination 0 0 DROP all -- any any lg01.mia02.pccwbtn.net anywhere 0 0 DROP all -- any any c-98-210-5-174.hsd1.ca.comcast.net anywhere 0 0 DROP all -- any any c-98-201-5-174.hsd1.tx.comcast.net anywhere 0 0 DROP all -- any any lg01.mia02.pccwbtn.net anywhere 0 0 DROP all -- any any www.dabacus2.com anywhere 0 0 DROP all -- any any 116.255.163.100 anywhere 0 0 DROP all -- any any 94.23.119.11 anywhere 0 0 DROP all -- any any 164.bajanet.mx anywhere 0 0 DROP all -- any any 173-203-71-136.static.cloud-ips.com anywhere 0 0 DROP all -- any any v1.oxygen.ro anywhere 0 0 DROP all -- any any 74.122.177.12 anywhere 0 0 DROP all -- any any 58.83.227.150 anywhere 0 0 DROP all -- any any v1.oxygen.ro anywhere 0 0 DROP all -- any any v1.oxygen.ro anywhere Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 186K packets, 224M bytes) pkts bytes target prot opt in out source destination `

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• squid bypass for a domain

  - by krisdigitx

  i am using squid with adzap, it possible that squid/adzap does not cache for a particluar domain eg. cnn.com this is my squid.conf file # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 #acl localhost src ::1/128 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 #acl to_localhost dst ::1/128 # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 192.168.1.0/24 acl localnet src 192.168.2.0/24 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow manager localhost http_access deny manager # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # We strongly recommend the following be uncommented to protect innocent # web applications running on the proxy server who think the only # one who can access services on "localhost" is a local user #http_access deny to_localhost # # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS # # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localnet http_access allow localhost # And finally deny all other access to this proxy http_access deny all # Squid normally listens to port 3128 http_port xxx.xxx.xxx.yyy:3128 transparent visible_hostname proxyserver.local # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /var/spool/squid 1024 16 256 # Leave coredumps in the first cache dir coredump_dir /var/spool/squid # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 access_log /var/log/squid/squid.log squid access_log syslog squid redirect_program /usr/local/adzap/scripts/wrapzap fixed using acl allow_domains dstdomain www.cnn.com always_direct allow allow_domains

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• Losing internet connection after few minutes (5-10 maybe)

  - by Korchkidu

  I took a computer that was not updated for months. Internet was working just fine so basically, I updated zonealarm, avast and installed all windows updates and especially SP3. After that, when I reboot, Internet works fine but after few minutes, Firefox says that the connection was reset. IE does not work either. However, my connection is still up and running as I can make a ping on www.google.com for example. Here are the solutions I tried with no success so far: 1) Uninstalling SP3; 2) Uninstalling IE8 and IE7; 3) Manually setting DNS and IPs; 4) Removed proxy settings from Firefox and IE; 5) Restarting DNS and DHCP related services; 6) Reset TCP/IP with netsh int ip reset c:\resetlog.txt; 7) Updated my ehternet card driver; 8) Restarted, tweaked all the connections in any directions and any configuration possible I believe; 9) Disabled Zone Alarm and Avast; Also, update kb981793 always fails on install. Please, help me as I spent two days already on this and I cannot find any solution. If I cannot fix this problem tomorrow, I will have to format-reinstall everything. Thanks for any help. Regards.

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• Connect trough remote computer connection

  - by Didac

  First, sorry for my english and my poor knowlodge of this subject. I have a dedicated server placed in Germany (windows 2008 R2) and I live in spain. I would like to access internet from my home computer (Windows 7 Pro x64), trough my server in Germany, so I can use a German IP, what I need some times. I have complete acces in to both computers, but I just don't know where to start. (My knwoledge is limited to software development :/ ) I'd like to know where to start, if I need to create a VPN and so.. Thanks in advance! Update 1 I tried a lot of options of OpenVPN, but I sadly I know nothing abuot networking, so I have to accept I do not know what I'm doing :( Here are my config files (note most of the options are from the sample config files). server.conf #server config file start port 1194 proto udp dev tun server 10.0.0.0 255.255.255.224 #you may choose any subnet. 10.0.0.x is used for this example. ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.key" dh "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\dh1024.pem" push "redirect-gateway def1" push "dhcp-option DNS 8.8.8.8" #the following commands are optional keepalive 10 120 comp-lzo persist-key persist-tun verb 5 #config file ends client.conf #client config file start client dev tun proto udp remote 176.9.99.180 1194 resolv-retry infinite nobind persist-key persist-tun ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.key" ns-cert-type server comp-lzo verb 5 explicit-exit-notify 2 ping 10 ping-restart 60 route-method exe route-delay 2 # end of client config file And here's the server's network settings: IP address: 176.9.99.180 Subnet mask: 255.255.255.224 Default gateway: 176.9.99.161 Preferred DNS server: 127.0.0.1

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• DHCPD (Slackware) - Disabling auto-generation of gateway as DNS server

  - by Dogbert

  Good day, I am using a Linux workstation on Slackware 13.37. One "problem" I have had to deal with ever since 11.0 is the following: DNS servers are queried and determined at startup by DHCP daemon (DHCPD) This is invoked at startup by a script located at /etc/rc.d/rc.dhcpd My DNS servers for my ISP are resolved correctly, and are stored in a list located at /etc/resolv.conf However, the one annoying problem is that my gateway IP (ie: 192.168.1.1) is always automatically put at the top of the list in resolv.conf, meaning I have to always wait for a timeout before a valid DNS server is used to resolve an address (ie: timeout on 192.168.1.1 because it is not actually a DNS server, then DHCP uses the next server in the list). I could lower my DNS resolution timeout so the gateway query times out quicker, but that's not what I want, as I don't want to degrade the abilities of legitimate DNS servers. What I would like to do is change how DHCPD operates so that it does NOT put my gateway IP address at the beginning of this list. I've searched via "man dhcpd", etc, and haven't found the exact answer yet. Any help on this issue is appreciated. Thank you all in advance for your time and assistance.

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• Am I able to forward traffic from an external subdomain to a specific local host?

  - by George Bowman

  I apologise in advance if the question doesn't make sense, please let me know. I've got a small LAN (~10 Virtual Servers) using Win Server 2008 as a DNS server. This is behind a smoothwall express 3.0 firewall with ports forwarded for specific services. I have a domain (123-reg) with the NS's that of afraid.org (DynamicDNS) and subdomains pointed to my (Dynamic) IP address e.g. subdomain1.example.com - 123.456.789.101. I think that adequately explains my set up. My question is, am I able to have subdomains e.g. subdomain1.example.com only point to a specific local host? Like so: subdomain1.example.com:80 - firewall(external facing) - server1.example.com:80 subdomain2.example.com:80 - firewall(external facing) - server2.example.com:80 I don't actually necessarily want to use port 80, otherwise I would just use VirtualHosts on apache, it is just an example port. Currently I can use either subdomain1.example.com OR subdomain2.example.com and they will both point to server1.example.com:80 I do not have to stay using Win Server 2008 for DNS, I am more than happy to move over to BIND if needs be, it was just easier to use Win Server 2008's DNS. I do not know if this is even possible, I have a feeling it isn't as I've only got one external IP address but any information is useful!

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• Can't connect to Server Manager from Windows 7

  - by SAdmin317

  I have a Windows 7 Pro 64bit with SP1 desktop that has RSAT tools installed. I opened Server Manager and can't connect to the server (Server 2008 R2 core). I followed the guide to enable everything on the server, added a registry key to enable read-only on the device manager as well. On the Windows 7 PC I turned on winrm, did the quick config, and added the server IP and name as trusted hosts. I still get an error when connecting. "Connecting to the remote server failed with the following error message: The WinRM client cannot process the requests. If the authentication scheme is different from Kerberos, or if the client computer is not joined to a domain, then HTTPS transport must be used or the destination machine must be added to the TrustedHosts configuration setting...." I also added the name of the server to the windows 7 /etc/hosts file. Ping the server name translates to the IP of the server. Also opened up the firewall for "Remote Volume Management" Both machines are on the same Workgroup, using the same Administrator account, with the same password. Any help appreciated.

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• Ubuntu 10.04 network manager issues

  - by Shark

  I was using the default network manager to connect to my wi-fi network, but if the connection is dropped or router restarted the network manager wont reconnect automatically after i guess a couple of tries and just gives a pop-up to connect manually . To avoid this annoyance I installed WICD but though it does try to reconnect to the network after a drop in connection it is unable to resolve the ip address and i am left with an even bigger annoyance . 1. Is there a way to counter either of these issues ? 2. Something like a background process that will check network status periodically and then try to connect to a favored network ? Edit- out put of lshw -C network *-network description: Wireless interface product: Broadcom Corporation vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:12:00.0 logical name: eth1 version: 01 serial: c0:cb:38:18:9b:7f width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 ip=192.168.11.2 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:17 memory:fbc00000-fbc03fff *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:13:00.0 logical name: eth0 version: 02 serial: f0:4d:a2:94:2d:74 size: 10MB/s capacity: 100MB/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s resources: irq:29 ioport:e000(size=256) memory:d0b10000-d0b10fff(prefetchable) memory:d0b00000-d0b0ffff(prefetchable) memory:fb200000-fb21ffff(prefetchable)

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• mod_rewrite not working for subdomain in Apache2

  - by Matt

  Hi, I'm having some trouble with mod_rewrite. So I'm implementing it through .htaccess, and I can get it working on my main vhost, domain.com - what I want it to do is rewrite http:// domain.com to force it to https:// domain.com, which it does well. I want to have name-based vhosts for the one IP with the following redirects: (I'm breaking up domain names with a space because otherwise serverfault recognises them as links) http:// domain.com -- https:// domain.com http:// staging.domain.com -- https:// staging.domain.com http:// test.domain.com -- https:// test.domain.com http:// beta.domain.com -- https:// beta.domain.com domain.com redirects to https:// domain.com, but staging.domain.com doesn't, although I can access https:// staging.domain.com. The .htaccess is identical for both, just with the domain name different. It doesn't seem to do any rewriting at all for staging.domain.com, I've tested this by trying to get it to rewrite to www.google.com. I have a wildcard DNS record, *.domain.com which points to the domain IP. Is there a particular way I should have the virtualhosts configured to allow this? I keep reading in the Apache documentation that it doesn't support multiple SSL name-based vhosts. But I can access both https:// domain.com and https:// staging.domain.com just fine. Any thoughts? Thanks to everyone for your help with this.

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• Migrating JBoss installation and install it on a PHP server

  - by David Martinez

  I'm configuring a new dedicated server that is going to run 3 sites, 2 of then are migrating from a old server. Each site have it's own domain and dedicated ip. 2 of this sites are already up and running on php (one of then use cakePHP), the third site is a migration from an old server and it runs on JBoss. 1) Is it possible to have both Jboss and php running on the same Apache instance, or would I have to install a new one? 2) Can I just move the old JBoss server directory to the new server and start the server with the shell script? From what I red here JBoss is distributed as a zip/tgz file with the server structure, so moving it from the old server to the new one should be the same. I want to do this because the old server is already configured, and it have 2 JBoss instances. I didn't develop this site and I don't have experience with JBoss. I have some documentation of the site, but it is not much, mostly server structure and the technology they used. The new server runs on CentOS with CPanel, I have full root access to the server. This question is similar to this one How can I run JBoss Application Server and Apache on the same server? but there he didn't have a dedicated IP for each domain.

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• How can I use HAproxy with SSL and get X-Forwarded-For headers AND tell PHP that SSL is in use?

  - by Josh

  I have the following setup: (internet) ---> [ pfSense Box ] /-> [ Apache / PHP server ] [running HAproxy] --+--> [ Apache / PHP server ] +--> [ Apache / PHP server ] \-> [ Apache / PHP server ] For HTTP requests this works great, requests are distributed to my Apache servers just fine. For SSL requests, I had HAproxy distributing the requests using TCP load balancing, and it worked however since HAproxy didn't act as a proxy, it didn't add the X-Forwarded-For HTTP header, and the Apache / PHP servers didn't know the client's real IP address. So, I added stunnel in front of HAproxy, reading that stunnel could add the X-Forwarded-For HTTP header. However, the package which I could install into pfSense does not add this header... also, this apparently kills my ability to use KeepAlive requests, which I would really like to keep. But the biggest issue which killed that idea was that stunnel converted the HTTPS requests into plain HTTP requests, so PHP didn't know that SSL was enabled and tried to redirect to the SSL site. How can I use HAproxy to load balance across a number of SSL servers, allowing those servers to both know the client's IP address and know that SSL is in use? And if possible, how can I do it on my pfSense server? Or should I drop all this and just use nginx?

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• Remote access to phpmyadmin from computer belongs to same LAN

  - by Charles

  OK... I solved it. It is because I have not configured the httpd.conf to allow the centos listen port 80 and 8080. Listen 80 Listen 8080 I have setup the myphpadmin on my CentOS 6.4 recently. I can access and login to the myphpadmin on my localhost. However, when I type http://[hostipaddr]/phpmyadmin on my other computer in the same LAN with the CentOS, the browser simply cannot access the page. Below are some of the current configuration. Anyone can help please......? config.inc.php $i++; /* Authentication type */ $cfg['Servers'][$i]['auth_type'] = 'http'; /* Server parameters */ $cfg['Servers'][$i]['host'] = 'localhost'; $cfg['Servers'][$i]['connect_type'] = 'tcp'; $cfg['Servers'][$i]['compress'] = false; /* Select mysql if your server does not have mysqli */ $cfg['Servers'][$i]['extension'] = 'mysql'; $cfg['Servers'][$i]['AllowNoPassword'] = false; phpmyadmin.conf <Directory /var/www/html/phpmyadmin/> order allow,deny allow from all </Directory> Furthermore, I can access the webpage that stored in the CentOS from my other computer without problems. After using wireshark and tcpdump, I found that the server (the Cent OS) keep resetting the connection. (192.168.1.106 is my other computer, 192.168.1.101 is my CentOS) 23:29:42.281473 IP 192.168.1.106.55999 > 192.168.1.101.webcache: Flags [S], seq 2559409090, win 65535, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0 23:29:42.281504 IP 192.168.1.101.webcache > 192.168.1.106.55999: Flags [R.], seq 0, ack 2559409091, win 0, length 0 I have disabled the iptables service on the CentOS already.

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• CentOS 5.7 issues with iptables

  - by Corey Whitaker

  I'm trying to set up IPTables on a new CentOS server. This server will function as an FTP server that I need to be accessible from the outside, however, I want to lock down SSH to only accept internal IP connections. I need to allow SSH for 10.0.0.0/8 and 172.16.132.0/24. Below I've posted my /etc/sysconfig/iptables file. Whenever I apply this, I essentially lock myself out and I have to access it via console using Vsphere. Can somebody show me what I'm doing wrong? I'm connecting from my laptop with an IP of 172.16.132.226. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [115:15604] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p icmp -m icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p esp -j ACCEPT -A RH-Firewall-1-INPUT -p ah -j ACCEPT -A RH-Firewall-1-INPUT -d 224.0.0.251 -p udp -m udp --dport 5353 -j ACCEPT -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A RH-Firewall-1-INPUT -s 10.0.0.0/8 -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A RH-Firewall-1-INPUT -s 172.16.132.0/24 -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 20 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 21 -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT

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• How to route broadcast packets from machine with two network interfaces on same subnet

  - by Syam

  I run RHEL 5 and have two NICs on one machine connected to the same subnet: eth0 192.168.100.10 eth1 192.168.100.11 My application needs to receive and transmit UDP packets (both unicast & broadcast) via these interfaces. I've found the way to handle the ARP problem and I've added routes to handle the routing problem: ip rule add from 192.168.100.10 lookup 10 ip route add table 10 default src 192.168.100.10 dev eth0 (and similarly, table 11 for eth1) The problem is that only unicast packets gets routed properly. Broadcast packets always go out through eth0. I tried removing the rule for 192.168.100.0 & 192.168.100.255 from table 255 and adding them to my tables. But then I see ARP requests being given out for packets to 192.168.100.255 (obviously, no nodes respond and nobody gets any data). Due to several techno-political issues, I'm stuck with this configuration and can't change subnets or try something different. I've tried SO_BINDTODEVICE and it works, but I'd prefer a solution that doesn't need my application to run as root. Is there a way to get this working? Any help is highly appreciated.

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• Unable to ssh to a Linux VM after a day

  - by jogabonito

  I have a machine running 4 VMs on it. There is one Fedora VM which is causing me some trouble. The IPs of the VMs are something like 10.100.100.* I have a Windows PC which is in the same network. It has an IP 10.100.25.77. When I reboot the Fedora VM, I am able to ping it from my Windows PC as well as use putty to ssh to it. The next day, I cant ping it or ssh from my Windows PC. However I can ping and ssh to the other VMs on the machine. If I ssh to one of the other VMs, I can ping and ssh to the Fedora VM. Next if I restart it, things get back to normal and I can access it without any issues. The IP of the VM doesn't change after rebooting and it is statically assigned I would like to know what is causing this and how to get it fixed. As a last resort, I am thinking of running a cron job to restart the VM every night, it is not a critical server, but will be generally used occasionally in the day time.

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• Raspberry pi slows down my entire network

  - by gnusouth

  Whenever my Raspberry Pi is connected to the network (via ethernet) the entire network is slowed to a crawl. On my main computer, ping times for google.com go from ~10ms to ~200ms and it takes forever to load web pages. Connections are also slow on the Pi, with an apt-get update showing pathetic speeds in the order of 1KB/s. Turning off the Pi completely removes the drag from the network. I've tried static and dynamic IP addresses for the Pi, but both have the same problems. I'm currently using Raspbian (downloaded today), but also had this problem with Arch Linux. I've checked the connection's duplex with dmesg | grep -i duplex, which shows that the Pi's connection is running at 100Mbps, full-duplex, as expected. My modem/router is a Billion 7404VNPX (an Australian thing); relatively high-end, albeit a bit buggy at times (it will occassionally delete all its firewall settings). It assigns IPs in the range 192.168.1.1 to 192.168.1.20 and has 192.168.1.254 as its own IP. When I assign static IPs I tend to use the 192.168.1.200 area. Does anyone have any idea as to what could be causing this weird slowdown? Or any tests I could try? Thanks

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• Windows Server 2003 IPSec Tunnel Connected, But Not Working (Possibly NAT/RRAS Related)

  - by Kevinoid

  Configuration I have setup a "raw" IPSec tunnel between a Windows Server 2003 (SBS) machine and a Netgear FVG318 according to the instructions in Microsoft KB816514. The configuration is as follows (using the same conventions as the article): NetA | SBS2003 | FVG318 | NetB 10.0.0.0/24 | 216.x.x.x | 69.y.y.y | 10.0.254.0/24 Both the Main Mode and Quick Mode Security Associations are successfully completed and appear in the IP Security Monitor. I am also able to ping the SBS2003 server on its private address from any computer on NetB. The Problem Any traffic sent from a computer on NetA to NetB, or from SBS2003 to NetB (excluding ICMP Ping responses), is sent out on the public network interface outside the IPSec tunnel (no encryption or header authentication, as if the tunnel were not there). Pings sent from a computer on NetB to a computer on NetA successfully reach computers on NetA, but the responses are silently discarded by SBS2003 (they do not go out in the clear and do not generate any encrypted traffic). Possible Solutions Incorrect Configuration I could have mistyped something, somewhere, or KB816514 could be incorrect in some way. I have tried very hard to eliminate the first option. Have re-created the configuration several times, tried tweaking and adjusting all the settings I could without success (most prevent the SA from being established). NAT/RRAS I have seen multiple posts elsewhere suggesting that this could be due to interaction between NAT and the IPSec filters. Possibly the NetA private addresses get rewritten to 216.x.x.x before being compared with the Quick Mode IPSec filters and don't get tunneled because of the mismatch. In fact, The Cable Guy article from June 2005 "TCP/IP Packet Processing Paths" suggests that this is the case, (see step 2 and 4 of the Transit Traffic path). If this is the case, is there a way to exclude NetA-NetB traffic from NAT? Any thoughts, ideas, suggestions, and/or comments are appreciated.

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