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  • libvirt's dnsmasq does not respond to dns queries or provide dhcp

    - by Jeremy
    This is on Ubuntu 10.04 server, using KVM to run Ubuntu guests. This system has been working for a long time and I have not changed anything (other than applying security updates), but today I found dnsmasq no longer responds to requests. I cannot say how long this has been broken for me because I don't frequently use the NAT'd guests. So it could have started just after the last updates or some other event and I just now found it. I can connect to port 53 with telnet at 192.168.122.1. I've flushed ip-tables to be sure it wasn't firewall rules and that is not the problem. dnsmasq is running, virsh reports default network as stared. I can't find ANY information on troubleshooting libvirt dnsmasq except that it won't play well with other instances of dnsmasq, which is not the problem. I cannot even find where log entries might be for this service. Any ideas on where to look for more information? edit to add: I added another network and that one works fine. I guess I have a workaround but would still like to figure out how to troubleshoot this problem.

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  • Trying to communicate between virtual servers on the same host through ipv6

    - by Daniele Testa
    I am running KVM on a host with 2 virtual servers. Each virtual server has a own bridge interface on the host VPS1 has br1 VPS2 has br2 Each virtual server has a own ipv4 and a ipv6. The virtual servers has no problem communicating with internet or with eachother through ipv4. However, with ipv6, they can only communicate with internet and NOT with eachother. The host can ping the 2 virtual servers without any problems, but they cannot ping eachother. iptables has been set to ACCEPT on all chains, so it is not the problem. VPS1 has ipv6 = 2a01:4f8:xxx:xxx::10 VPS2 has ipv6 = 2a01:4f8:xxx:xxx::5 the host has the following routes set: ip route add 2a01:4f8:xxx:xxx::10 dev br1 ip route add 2a01:4f8:xxx:xxx::5 dev br2 When I do a ping from VPS2 to VPS1, I see the following on the host: tcpdump -i br1 15:32:27.704404 IP6 2a01:4f8:xxx:xxx::10 > ff02::1:ff00:5: ICMP6, neighbor solicitation, who has 2a01:4f8:xxx:xxx::5, length 32 So it seems like the host is seeing the request coming from VPS1 on br1. But for some reason, it does not forward it to br2. Instead it is asking where the destination IP is through ipv6 multicast. Anyone has a clue what is going on? I find this very strange, as it is working fine with ipv4 with the exact same settings and routes.

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  • Cisco sg100-08 connections

    - by Terix
    I have multiple computers, some have a 10/100 ethernet adapter while others have a 10/100/1000 ones. If I connect them together with the Cisco sg100-08 switch, do I keep the 1Gbit speed where possible (between two devices at 1Gbit speed) or the whole lan slows down to 100mbit? I checked Cisco website but I couldn't find this kind of information, nor I was able to register to the Cisco support to ask this question (the registration form does not work)

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  • How does Windows 7 detect my switches?

    - by Daniel
    I notices in the Network overview of Windows 7 that my switches are found on the path to the gateway, which baffled me completely. The last time I checked they just took the ethernet packages and transported them to the "right" location. How does this switch detection work? Do switches alter the packages? Do they react on ICMP messages?

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  • Multiple Screen - Keyboard Sharing

    - by nhbdesign
    I run a small architectural firm with several drafters employed, I'm currently setting up a new office space and one of the things on top of my list is a figuring out a way to keep tabs on my drafters work and being able to collaborate in real time. Here's the challenge, they sit in a separate large cubicle room and I'm on the other end of the hallway, the way it is now; every time they’ve got some question on how to proceed on a certain design, they would come all the way to my office, I'd open their file (in read only) give some ideas, save-as new file, they go back copy paste... in short, nonsense. What I've been thinking of is to setup a hardwired solution that should enable me to have an extra monitor on my desktop which is hardwired (through KVM or something) to each of my employees workstations serving as a secondary display, so that I can watch live what they do, interact with them just as if they would have an extra keyboard and monitor in my office, except; I don’t want to have on my desk a separate monitor for each employee.. so I'd want them to be tiled on a single large screen, watching all screens alive, and whenever they ask me (or I just decide..) to step in, I just click on any tile and hurray, I'm in, editing and saving in real time on their workstation. I also want to reserve the option when I want to, to just use that monitor as just an extra screen for my workstation. Is something like that possible in 2013? P.S. I know of TeamViewer and similar internet/software based stuff, but I'm specifically looking for something solid hardwired and maintenance free, and also something that would allow to watch without my employees getting notified every time I do so (I’m not a tough boss though...).

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  • Why should I use a switched network over routed?

    - by SRobertJames
    Now that routers are affordable, why should I build a network using Layer 2 switches, which degenerate to broadcasting under poor conditions, and not just use real routing at Layer 3? Edit: Got some great replies. Let me clarify the question: Of course, at the lowest level, you want to plug your end nodes into a switch, not a router (as demonstrated by AlReece). I'm referring to switches which are used to bridge traffic between segments - that is, switches connected to other switches.

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  • What is IPKVM and why would I need that to install SQL Server on my Web Server?

    - by Eric
    Hello. I have a dedicated server, and will be installing SQL Server. However, my hosting company said they can connect an external CD ROM drive and give me KVM over IP to install SQL Server. My question is, what is IPKVM, and how does it work? Do I need special hardware or software on my side to use it....or do I just connect via remote desktop? Also, why can't I remote into my server through remote desktop instead of using KVM over IP?

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  • Can ping device from one computer and not the other

    - by Sean Duggan
    I've recently been assigned to work on a diagnostic program done in C++ which communicates with a piece of electronic equipment. Our normal scenario involves communicating via an RS232 interface, but I've been asked to make our program work over ethernet, source code having been done in Visual Basic. After much thrashing about trying to get the code to work and continuing to get 10049 Winsock errors when I tried to connect, I tried pinging the switch. From the computer the VB program is running on, I can see the switch via ping, nslookup, tracert, and pathping (I was going down the list of programs) and I can do this via URI or IP address. From my laptop, sending the same commands fails every time. They're both using the same network cable and the same USB-to-Ethernet device (I've been swapping them between tests) but one can see the switch and the other cannot. I'm working on the programming end, but the ping results makes me think that there might be a network issue stymieing me. wry grin I'm not much of a network guy, so I'm appealing to expert assistance. Both computers are running Windows XP if that helps. The connection is to an "IP-RS8" device which then connects to our VCU-C units. Each unit is accessible via URI or IP address on the desktop computer we usually have connected to the units (it's running the older VB program that I was asked to lift the networking code from). The connection is made via a USB-to-Ethernet adapter so as to leave the regular Ethernet port available for connecting to the company network. Hmm... come to think of it, I've probably been confusing the issue, talking about pinging "the switch" rather than indicating that it's the devices. My apologies. Communication is generally done with a DLL that uses Winsock functions to make queries for data from the VCU and then to receive. I'm failing when connecting. I haven't found anything on the firewall which should block these commands, but I'll keep poking. I don't know if it's potentially relevant, but on the desktop, the adapter maps to Local Area Connection 3 while on the laptop, it consistently maps to Local Area Connection 2. Currently reading up on DHCP. IPConfig /all results: Desktop Host Name . . . . . . . . . . . . : AMERDAEXXXXXX Primary Dns Suffix . . . . . . . : amer.example.com Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : COMPANY.com amer.example.com atle.example.com cone.example.com apac.example.com scan.example.com bYX.example.com Ethernet adapter Local Area Connection X: Connection-specific DNS Suffix . : amer.example.com Description . . . . . . . . . . . : Broadcom NetXtreme XYxx Gigabit Controller Physical Address. . . . . . . . . : YY-XX-YB-XX-XX-XX Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : XYY.XXX.XY.XXX Subnet Mask . . . . . . . . . . . : XXX.XXX.XXY.Y Default Gateway . . . . . . . . . : XYY.XXX.XY.X DHCP Server . . . . . . . . . . . : XY.XXX.XXY.XX DNS Servers . . . . . . . . . . . : XY.XXX.XXY.XX XY.XXY.XXY.XX Primary WINS Server . . . . . . . : XY.XXX.XXY.X Secondary WINS Server . . . . . . : XY.XXY.XXY.X Lease Obtained. . . . . . . . . . : Thursday, July XX, XYXX XY:XX:XX AM Lease Expires . . . . . . . . . . : Sunday, July XX, XYXX XY:XX:XX AM Ethernet adapter Local Area Connection X: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : ASIX axYYYYX USBX.Y to Fast Ethernet Adapter Physical Address. . . . . . . . . : YY-XY-BY-YX-XY-AY Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : XY.Y.Y.X Subnet Mask . . . . . . . . . . . : XXX.XXX.XXY.Y Default Gateway . . . . . . . . . : XY.Y.Y.X DHCP Server . . . . . . . . . . . : XY.Y.Y.XY DNS Servers . . . . . . . . . . . : XY.Y.Y.X Lease Obtained. . . . . . . . . . : Thursday, July XX, XYXX XY:XX:XY AM Lease Expires . . . . . . . . . . : Tuesday, August YX, XYXX XX:XY:XY AM Laptop Windows IP Configuration Host Name . . . . . . . . . . . . : AMERLAFYYXXYX Primary Dns Suffix . . . . . . . : amer.example.com Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : COMPANY.com amer.example.com atle.example.com cone.example.com apac.example.com scan.example.com bYX.example.com Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : amer.example.com Description . . . . . . . . . . . : Intel(R) 82567LM Gigabit Network Connection Physical Address. . . . . . . . . : YY-XY-BY-DY-XB-YX Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : XYY.XXX.XY.XY Subnet Mask . . . . . . . . . . . : XXX.XXX.XXY.Y Default Gateway . . . . . . . . . : XYY.XXX.XY.X DHCP Server . . . . . . . . . . . : XY.XXX.XXY.XX DNS Servers . . . . . . . . . . . : XY.XXX.XXY.XX XY.XXY.XXY.XX Primary WINS Server . . . . . . . : XY.XXX.XXY.X Secondary WINS Server . . . . . . : XY.XXY.XXY.X Lease Obtained. . . . . . . . . . : Thursday, July XX, XYXX XX:XX:XX AM Lease Expires . . . . . . . . . . : Sunday, July XX, XYXX XX:XX:XX AM Ethernet adapter {XYXAAYXX-YEDY-XXYX-YYEX-BYXYXXYEEYEX}: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Nortel IPSECSHM Adapter - Packet Scheduler iniport Physical Address. . . . . . . . . : XX-XX-XX-XX-XX-YY Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : Y.Y.Y.Y Subnet Mask . . . . . . . . . . . : Y.Y.Y.Y Default Gateway . . . . . . . . . : Ethernet adapter Leaf Networks Adapter: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Leaf Networks Adapter Physical Address. . . . . . . . . : YY-FF-FA-BC-YF-AY Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : X.XYY.XY.XX Subnet Mask . . . . . . . . . . . : XXX.Y.Y.Y Default Gateway . . . . . . . . . : Ethernet adapter Local Area Connection 3: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Bluetooth LAN Access Server Driver Physical Address. . . . . . . . . : YY-FX-AX-YA-BY-CA Ethernet adapter Wireless Network Connection 2: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Intel(R) WiFi Link 5300 AGN Physical Address. . . . . . . . . : YY-XX-YA-CX-FC-YE Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : ASIX ax88772 USB2.0 to Fast Ethernet Adapter Physical Address. . . . . . . . . : YY-XY-BY-YX-XY-AY Dhcp Enabled. . . . . . . . . . . : No IP Address. . . . . . . . . . . . : XYX.XYY.X.X Subnet Mask . . . . . . . . . . . : XXX.XXX.XXX.Y Default Gateway . . . . . . . . . :

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  • Attach radeon driver to specific PCI devices?

    - by genpfault
    I have two Radeon cards in this machine, a 6570 and a 6950: lspci | grep VGA: 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Turks [Radeon HD 6570] 02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cayman PRO [Radeon HD 6950] I'm trying to get VGA passthrough to work with KVM on Debian Wheezy, passing through the 6950 as a secondary video card to a Windows 7 guest. This works fine if I blacklist the radeon kernel module via /etc/modprobe.d/. If I remove the blacklist to run X11 (or even just a KMS console) on the 6570 the radeon module seems to attach to both cards: dmesg | egrep "01:00.0|02:00.0|radeon": pci 0000:01:00.0: [1002:6759] type 0 class 0x000300 pci 0000:01:00.0: reg 10: [mem 0xe0000000-0xefffffff 64bit pref] pci 0000:01:00.0: reg 18: [mem 0xf7e20000-0xf7e3ffff 64bit] pci 0000:01:00.0: reg 20: [io 0xe000-0xe0ff] pci 0000:01:00.0: reg 30: [mem 0xf7e00000-0xf7e1ffff pref] pci 0000:01:00.0: supports D1 D2 pci 0000:02:00.0: [1002:6719] type 0 class 0x000300 pci 0000:02:00.0: reg 10: [mem 0xd0000000-0xdfffffff 64bit pref] pci 0000:02:00.0: reg 18: [mem 0xf7d20000-0xf7d3ffff 64bit] pci 0000:02:00.0: reg 20: [io 0xd000-0xd0ff] pci 0000:02:00.0: reg 30: [mem 0xf7d00000-0xf7d1ffff pref] pci 0000:02:00.0: supports D1 D2 vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none vgaarb: device added: PCI:0000:02:00.0,decodes=io+mem,owns=none,locks=none vgaarb: bridge control possible 0000:02:00.0 vgaarb: bridge control possible 0000:01:00.0 pci 0000:01:00.0: Boot video device [drm] radeon kernel modesetting enabled. radeon 0000:01:00.0: setting latency timer to 64 radeon 0000:01:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used) radeon 0000:01:00.0: GTT: 512M 0x0000000040000000 - 0x000000005FFFFFFF [drm] radeon: 1024M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. radeon 0000:01:00.0: irq 46 for MSI/MSI-X radeon 0000:01:00.0: radeon: using MSI. [drm] radeon: irq initialized. radeon 0000:01:00.0: WB enabled [drm] radeon: ib pool ready. [drm] radeon: power management initialized fbcon: radeondrmfb (fb0) is primary device fb0: radeondrmfb frame buffer device [drm] Initialized radeon 2.12.0 20080528 for 0000:01:00.0 on minor 0 radeon 0000:02:00.0: enabling device (0000 -> 0003) radeon 0000:02:00.0: setting latency timer to 64 radeon 0000:02:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used) radeon 0000:02:00.0: GTT: 512M 0x0000000080000000 - 0x000000009FFFFFFF [drm] radeon: 2048M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. radeon 0000:02:00.0: irq 49 for MSI/MSI-X radeon 0000:02:00.0: radeon: using MSI. [drm] radeon: irq initialized. radeon 0000:02:00.0: WB enabled [drm] radeon: ib pool ready. [drm] radeon: power management initialized fb1: radeondrmfb frame buffer device [drm] Initialized radeon 2.12.0 20080528 for 0000:02:00.0 on minor 1 [drm] radeon: finishing device. radeon 0000:02:00.0: ffff88041a941800 unpin not necessary [drm] radeon: ttm finalized pci-stub 0000:02:00.0: claimed by stub pci-stub 0000:02:00.0: irq 49 for MSI/MSI-X This causes the Win7 VM to bluescreen on boot. How can I configure things so that the radeon module only attaches to the 6570 and not the 6950?

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  • Network Bridging for WiFi-to-Ethernet in linux

    - by shakaran
    It is possible Network Bridging for WiFi-to-Ethernet in linux instead of Ethernet-to-Ethernet? I have a CentOS 6.3 machine. I am using KVM and I want perform a brigde for virtualize more machines. This machine is connected only via wireless connection and it doesn't have a ethernet connection. So, I did a bridge over the WiFi interface like: # cat /etc/sysconfig/network-scripts/ifcfg-br0 DEVICE="br0" NM_CONTROLLED="yes" ONBOOT=yes TYPE=Bridge BOOTPROTO=none IPADDR=192.168.1.50 PREFIX=24 GATEWAY=192.168.1.1 DNS1=8.8.8.8 DNS2=8.8.4.4 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System br0" Then I edit my wireless conection like: # cat /etc/sysconfig/network-scripts/ifcfg-mywireless ESSID="mywireless" MODE=Managed KEY_MGMT=WPA-PSK WPA_ALLOW_WPA2=yes CIPHER_PAIRWISE=CCMP CIPHER_GROUP=CCMP TYPE=Wireless #BOOTPROTO=none #IPADDR=192.168.1.50 #PREFIX=24 #GATEWAY=192.168.1.1 #DNS1=8.8.8.8 #DNS2=8.8.4.4 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="Auto mywireless" UUID=874***** ONBOOT=yes LAST_CONNECT=1355923469 BRIDGE=br0 After, I restart the network: # /etc/init.d/network restart Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface Auto_mywireless: Error: Unknown connection: 874***** [FAILED] Bringing up interface br0: [ OK ] But as you can see, it show a error. My ifconfig output shows now: # ifconfig br0 Link encap:Ethernet HWaddr 6E:20:AD:CE:D8:AB inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6c20:adff:fece:d8ab/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:67 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:6393 (6.2 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:432 errors:0 dropped:0 overruns:0 frame:0 TX packets:432 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:62433 (60.9 KiB) TX bytes:62433 (60.9 KiB) ra0 Link encap:Ethernet HWaddr 00:22:F7:2B:87:E5 inet addr:192.168.1.42 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::222:f7ff:fe2b:87e5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:46 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:487894880 (465.2 MiB) TX bytes:148136473 (141.2 MiB) virbr0 Link encap:Ethernet HWaddr 52:54:00:5B:30:9A inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:70 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:5838 (5.7 KiB) But this doesn't give internet connection and I loss access to 192.168.1.50. So, it is possible setup this networking bridge WiFi-to-Ethernet?

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  • Volume group disappeared, LVs still available

    - by Ben
    I've run into an issue with my KVM host which runs VMs on a LVM volume. As of last night the logical volumes are no longer seen as such (I can't create snapshots of them even though I have been for months now). Running any scans all result in nothing being found: [root@apollo ~]# pvscan No matching physical volumes found [root@apollo ~]# vgscan Reading all physical volumes. This may take a while... No volume groups found root@apollo ~]# lvscan No volume groups found If I try restoring the VG conf backup from /etc/lvm/backups/vg0 I get the following error: [root@apollo ~]# vgcfgrestore -f /etc/lvm/backup/vg0 vg0 Couldn't find device with uuid 20zG25-H8MU-UQPf-u0hD-NftW-ngsC-mG63dt. Cannot restore Volume Group vg0 with 1 PVs marked as missing. Restore failed. /etc/lvm/backups/vg0 has the following for the physical volume: physical_volumes { pv0 { id = "20zG25-H8MU-UQPf-u0hD-NftW-ngsC-mG63dt" device = "/dev/sda5" # Hint only status = ["ALLOCATABLE"] flags = [] dev_size = 4292870143 # 1.99902 Terabytes pe_start = 384 pe_count = 524031 # 1.99902 Terabytes } } fdisk -l /dev/sda shows the following: [root@apollo ~]# fdisk -l /dev/sda Disk /dev/sda: 6000.1 GB, 6000069312512 bytes 64 heads, 32 sectors/track, 5722112 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000188b7 Device Boot Start End Blocks Id System /dev/sda1 2 32768 33553408 82 Linux swap / Solaris /dev/sda2 32769 33280 524288 83 Linux /dev/sda3 33281 1081856 1073741824 83 Linux /dev/sda4 1081857 3177984 2146435072 85 Linux extended /dev/sda5 1081857 3177984 2146435071+ 8e Linux LVM The server is running a 4 disk HW RAID10 which seems perfectly healthy according to megacli and smartd. The only odd message in /var/log/messages is the following which shows up every couple of hours: Jun 10 09:41:57 apollo udevd[527]: failed to create queue file: No space left on device Output of df -h [root@apollo ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 1016G 119G 847G 13% / /dev/sda2 508M 67M 416M 14% /boot Does anyone have any ideas what to do next? The VMs are all running fine at the moment apart from not being able to snapshot them. Updated with extra info It's not a lack of inodes: [root@apollo ~]# df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda3 67108864 48066 67060798 1% / /dev/sda2 32768 47 32721 1% /boot pvs, vgs & lvs either output nothing or "No volume groups found".

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  • centos 6 ps aux hangs up

    - by Guntis
    I have problem with my server. Server is running centos 6 (CloudLinux Server release 6.2). uname -a = 2.6.32-320.4.1.lve1.1.4.el6.x86_64 That is a kvm guest. On host is debian 6. If i run command ps aux, it stuck on random process (shows some processes only), top command is working fine. htop doesn't work too (black screen). top - 12:11:51 up 34 min, 1 user, load average: 4.26, 6.71, 16.15 Tasks: 201 total, 7 running, 192 sleeping, 0 stopped, 2 zombie Cpu(s): 7.9%us, 2.8%sy, 0.0%ni, 87.5%id, 1.6%wa, 0.0%hi, 0.2%si, 0.0%st Mem: 9862044k total, 2359484k used, 7502560k free, 171720k buffers Swap: 10485720k total, 0k used, 10485720k free, 1336872k cached server has one Intel(R) Xeon(R) CPU E5606 @ 2.13GHz, free -m total used free shared buffers cached Mem: 9630 2336 7293 0 170 1324 -/+ buffers/cache: 841 8789 Swap: 10239 0 10239 php -v PHP 5.3.19 (cli) (built: Nov 28 2012 10:03:07) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies with the ionCube PHP Loader v4.2.2, Copyright (c) 2002-2012, by ionCube Ltd., and with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technologies with Suhosin v0.9.33, Copyright (c) 2007-2012, by SektionEins GmbH mysql Server version: 5.1.63-cll php -i disable_functions => apache_child_terminate, apache_setenv, define_syslog_variables, escapeshellarg, escapeshellcmd, eval, exec, fp, fput, ftp_connect, ftp_e xec, ftp_get, ftp_login, ftp_nb_fput, ftp_put, ftp_raw, ftp_rawlist, highlight_file, ini_alter, ini_get_all, ini_restore, inject_code, openlog, passthru, php _uname, phpAds_remoteInfo, phpAds_XmlRpc, phpAds_xmlrpcDecode, phpAds_xmlrpcEncode, popen, posix_getpwuid, posix_kill, posix_mkfifo, posix_setpgid, posix_set sid, posix_setuid, posix_setuid, posix_uname, proc_close, proc_get_status, proc_nice, proc_open, proc_terminate, shell_exec, syslog, system, xmlrpc_entity_de code, xmlrpc_server_create, putenv, show_source,mail => apache_child_terminate, apache_setenv, define_syslog_variables, escapeshellarg, escapeshellcmd, eval, exec, fp, fput, ftp_connect, ftp_exec, ftp_get, ftp_login, ftp_nb_fput, ftp_put, ftp_raw, ftp_rawlist, highlight_file, ini_alter, ini_get_all, ini_restore, inject_code, openlog, passthru, php_uname, phpAds_remoteInfo, phpAds_XmlRpc, phpAds_xmlrpcDecode, phpAds_xmlrpcEncode, popen, posix_getpwuid, posix_kill, pos ix_mkfifo, posix_setpgid, posix_setsid, posix_setuid, posix_setuid, posix_uname, proc_close, proc_get_status, proc_nice, proc_open, proc_terminate, shell_exe c, syslog, system, xmlrpc_entity_decode, xmlrpc_server_create, putenv, show_source,mail ... suhosin.executor.disable_eval => Off => Off suhosin.executor.eval.blacklist => include,include_once,require,require_once,curl_init,fpassthru,base64_encode,base64_decode,mail,exec,system,proc_open,leak, syslog,pfsockopen,shell_exec,ini_restore,symlink,stream_socket_server,proc_nice,popen,proc_get_status,dl, pcntl_exec, pcntl_fork, pcntl_signal,pcntl_waitpid, pcntl_wexitstatus, pcntl_wifexited, pcntl_wifsignaled,pcntl_wifstopped, pcntl_wstopsig, pcntl_wtermsig, socket_accept,socket_bind, socket_connect, socket_cr eate, socket_create_listen,socket_create_pair,link,register_shutdown_function,register_tick_function,gzinflate => include,include_once,require,require_once,c url_init,fpassthru,base64_encode,base64_decode,mail,exec,system,proc_open,leak,syslog,pfsockopen,shell_exec,ini_restore,symlink,stream_socket_server,proc_nic e,popen,proc_get_status,dl, pcntl_exec, pcntl_fork, pcntl_signal,pcntl_waitpid, pcntl_wexitstatus, pcntl_wifexited, pcntl_wifsignaled,pcntl_wifstopped, pcntl _wstopsig, pcntl_wtermsig, socket_accept,socket_bind, socket_connect, socket_create, socket_create_listen,socket_create_pair,link,register_shutdown_function, register_tick_function,gzinflate Sometimes i cannot kill httpd process. I run kill -9 PID even several times, and nothing happens. php runs via suphp. I learned somewhere that it can be trojan. I ran strace ps aux and it stops on open("/proc/PID/cmdline", O_RDONLY) If i reboot server, problem is gone but after some time it is back again .. :( Thanks.

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  • file corruption on read/write 2.6.32-22-server (happens across many kernels)

    - by Jonathan
    Hi Guys, I'm having an issue where after the server has been up for a period of time (~week/few days) the server will start reading corrupt data. For instance when I run a sha1sum of a file after a fresh boot it remains the same. However after a while I will start to get segfaults and from then on whenever I read this file I get a different sha1sum. I've checked S.M.A.R.T with long tests and I've run an extended memtest86+(12 passes) My lspci is as follows: 00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge 00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (int gfx) 00:06.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2) 00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 3) 00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode] 00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller 00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c) 00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller 00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge 00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller 00:18.0 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] HyperTransport Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Miscellaneous Control 00:18.4 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Link Control 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3300 Graphics 01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller 02:00.0 Ethernet controller: Atheros Communications Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0) 03:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. Device 3403 I could really use some help on this, do you have any idea what could cause this? It's really frustrating me as it seems to trigger entirely randomly and will not go away until I reboot. I'm also use KVM for virtualization as well as MD for software RAID on this server and the processor is a Phenom II X4 965. I don't believe it's the software raid however as this affects files also hosted on non-raid partitions so I don't know.

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  • 2xAMD Opteron 6128 with libvirt, Physical CPU 13 doesn't exist

    - by yak
    I need help with libvirt(?) problem. Server specs: ProLiant DL165 G7 2x AMD Opteron(tm) Processor 6128 System: Debian GNU/Linux testing (wheezy) 3.2.0-3-amd64 libvirt 0.9.12-5 kvm 1:1.1.2+dfsg-2 $ grep processor /proc/cpuinfo | wc -l 16 $ virsh nodeinfo setlocale: No such file or directory CPU model: x86_64 CPU(s): 16 CPU frequency: 800 MHz CPU socket(s): 2 Core(s) per socket: 4 Thread(s) per core: 1 NUMA cell(s): 1 Memory size: 66114200 KiB $ virsh capabilities .. <topology> <cells num='4'> <cell id='0'> <cpus num='4'> <cpu id='0'/> <cpu id='1'/> <cpu id='2'/> <cpu id='3'/> </cpus> </cell> <cell id='1'> <cpus num='4'> <cpu id='4'/> <cpu id='5'/> <cpu id='6'/> <cpu id='7'/> </cpus> </cell> <cell id='2'> <cpus num='4'> <cpu id='12'/> <cpu id='13'/> <cpu id='14'/> <cpu id='15'/> </cpus> </cell> <cell id='3'> <cpus num='4'> <cpu id='8'/> <cpu id='9'/> <cpu id='10'/> <cpu id='11'/> </cpus> </cell> </cells> </topology> .. $ virsh vcpupin vm 0 13,12,11,10,9,8,7,6,5 error: Physical CPU 13 doesn't exist. error: cpulist: Invalid format. Question? Why my VM Guests use only first 8 CPUs and next 8 are idling? $ for host in virsh list | awk '{print $2}'; do virsh vcpuinfo $host; done | grep ^CPU: | sort | uniq CPU: 0 CPU: 1 CPU: 2 CPU: 3 CPU: 4 CPU: 5 CPU: 6 CPU: 7 Any ideas how to change it?

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  • Baseline 2952-SFP normal?

    - by Atlas
    I just installed a 3com 2952-sfp, and I had its port #48 connected to another gigabit switch through a cat5e cable. Now when I look at the logs, I see the lines shown below: Mar 23 11:20:15:829 2010 MSTP Critical PFWD Instance 0's GigabitEthernet1/0/48 has been set to forwarding state! Mar 23 11:20:15:822 2010 IFNET Warning LINK UPDOWN GigabitEthernet1/0/48: link status is UP Mar 23 11:20:12:974 2010 IFNET Warning LINK UPDOWN GigabitEthernet1/0/48: link status is DOWN The above happens like dozens of times per day, is there something wrong with my setup?

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  • linksys wrt54g router to a Cisco router?

    - by jasondavis
    This may be a strange question but I have no clue. I currently have a basic linksys wrt54g router fo9r my home network. I am considering getting a rack/cabinet and running a home server or 2 and hooking up my home network to it. If I were to do0 this I could pick up a cisco rack mounted router and switch off ebay to use. So If I were to do this, would I just plugin in the cables for the cisco router from my dsl modem or is there more to it to get these working?

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  • Recommendation for Ethernet switches that allow arbitrary network topologies

    - by sblair
    We have the following requirements for three Ethernet switches that will be connected together: Allow the switches to connect together to form dynamic, arbitrary topologies, i.e., support for the RSTP is essential. Allow the physical topology (which ports are connected together) to be gleaned from the switches, e.g., using SNMP traps. This is optional, but would be very useful. At least 5 ports on each switch, but only 3 will be used for connecting the switches together. Be as compact as possible. Ideally be in stock, in the UK. Only 100Mb/s is required. (This question is the result of the lack of RSTP support from 3Com NJ225 devices, as described in my previous question.)

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  • Switch to tab by typing a substring of its name in Visual Studio 2005

    - by Vineus
    Is there a way to navigate between tabs in VS similar to the emacs iswtichb-mode or Firefox ubiquity switch tab mode (https://wiki.mozilla.org/Labs/Ubiquity/Ubiquity_0.1_Author_Tutorial#Switching_Tabs) ? In these apps, you just type a substring of the title of the tab (or buffer for emacs) to switch to this tab. For instance, to switch to a tab named "App_Code/Data/MyProgram.cs", you just invoke the tab switching command and then type "Progr" for instance to list all the tab whose name matches this string, including "MyProgram.cs". It's much easier to switch between tabs this way when you have a lot of documents open and when you now where to go (which is the case in most situation) Thank you !

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  • Hyper-V server 2012 nic teaming setup and virtual switch configuration

    - by Calvin
    I have a server with 2 nics. I installed Hyper-v 2012 server (not windows server 2012, no gui) I am trying to set up load balancing. I have both nics in the same switch currently in trunk mode and no native vlan. I use the new-netlbfoteam command to create a team with both nics, I can then "set-netlbfoteamnic "Nic Team" -vlanid 4" so that its available to me with a DHCP or static address but as soon as I try to create a virtual switch it becomes unresponsive. My guess is that is due to it removing the vlan tagging I setup. if I add-netlbfoteamnic and set it for vlan 4, then set the IP I can ping it from my management computer but I just get an error "an error occurred while attempting to connect to server "xxxxxx" Check that the Virtual Machine Management service is running and that you are authorized to connect to the server."

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  • configuration transfer over scp on commit not working on Juniper EX-2200 switch

    - by liv2hak
    I am making a series of configuration changes on Junos EX- 2200 switch.I have this router connected to another PC via an ethernet cable.The IP address of the switch is 192.168.1.1.I am able to ping from 192.168.1.1 to 192.168.1.0 and vice-versa. After the changes I make I do the following commands set system archival configuration transfer-on-commit set system archival configuration archive-sites "scp://[email protected]:/home/karthik/ws_karthik/sw1_config_1.txt" password godfather commit Where there is a user with user-name "karthik " and password "godfather".The path shown above also exists in the system How ever I don't see the configuration file sw1_config_1.txt created at the path specified. Also I have verified that sshd is running on the PC (192.168.1.10) Am I doing something wrong here? It would be great if anyone could help me out.

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  • Cisco 2811 router ignored input errors

    - by elbekay
    I've got a Cisco 2811 (AdvIPServices 12.4(25e)) that is showing input errors on both its interfaces, all the errors are of the ignored type. The counter for ignore errors is not increasing continuously, which made me think it would be happening in line with traffic bursts, but there really isn't a large amount of traffic running through it at any time. Both the router interfaces are connected to a 4900 (IPBase 12.2(54)) series switch. The only things I can see are: There is a slight mismatch in duplex/speed negotiation settings, one side is set to auto/auto and one full/auto, however they have negotiated fine. There have been a few fallbacks on the interface buffers, and some trims in the public buffers. Any suggestions for things to look at? I will be correcting the duplex neg settings, and might try a buffer tune, but I don't think it will help.

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  • PowerConnect 2848 , vlan configuration with AP

    - by Francesco
    I need to configure two vlan on an AP connected with a Dell PowerConnect 2848. The first one is up and running (let's say vlan x) , the second one is a completely different network (vlan y) , provided by a Gateway-DHCP wich i have no access, directely Patched (via patch panel) at a secondo AP device. So i cannot just plug this Gateway device on my switch without tagging traffic before, for DHCP collion . I have to solve this problem. I was thinking about tagging the traffic at the port wich I will connect the gateway device with vlan y and then set as trunk (vlanx+y) the AP port. In this way I hope to limit the vlan y traffic ONLY for the ports I selected avoiding the spread of unwanted dhcp calls. But all other ports are Unassigned , so I am not sure they won't forward dhcp (vlan y) traffic. I cannot change the Unassigned state for the vlan x ports cause vlanx is native.

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  • Smart card authentication to a Cisco switch?

    - by murisonc
    We have our Cisco network devices configured to authenticate network administrators using their domain accounts via RADIUS running on a Windows 2008R2 server with the network protection role. This works great for logging into the switch via SSH when configuring the devices. We are now in the beginning stages of deploying smart cards for logins. Does anyone know of a way to login to a Cisco switch using a smart card instead of a domain username and password? The SSH client we are using is Putty. Workstations are Windows 7. RADIUS is running on Windows 2008R2. We are running our own certificate authority on Windows 2008; network is not connected to the Internet. We prefer to not have to purchase additional proprietary devices for this functionality.

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  • How to monitor the temperature of a HP Procurve 3500 switch via SNMP

    - by Murali Suriar
    I am attempting to poll the temperature of an HP ProCurve 3500YL switch remotely using SNMP. Looking at this MIB, it appears that the following OIDs: hpCpuTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.6 hpPowerSupplyTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.7 hpChassisTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.8 Within the 'hpProcurveSysMib' should provide the data I need. However, whenever I attempt to access these OIDs, I receive the response: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1.1.6 = No Such Object available on this agent at this OID Further investigation reveals that the switch in question does not appear to implement the parent hpProcurveSystem MIB: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1 = No Such Object available on this agent at this OID Does anyone know of an alternative MIB implemented by the 3500 that will allow its temperature to be polled automatically?

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