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  • Running a home mail server using dynamic dns [closed]

    - by Anand
    Hi, Is it possible to run an email server on my home box using dynamic dns? The scenario is, I want to auto cc all incoming and outgoing emails from my one account to another, from some server side config instead of configuring email clients for rules. I have tried Google Apps Mail but it doesn't allow auto cc of outgoing emails. After having read tons of blogs, forum messages etc (hope I have been reading the correct info :) ) the only option to achieve what I am needing is to setup my own mail server, but the cost of getting a static IP doesn't fit my budget. Please can someone point me in the correct direction. Platform doesn't matter, I can setup a Windows or Linux server. Many Thanks

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  • Bridging LXC containers to host eth0 so they can have a public IP

    - by Vianney Stroebel
    UPDATE: I found the solution there: http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge#No_traffic_gets_trough_.28except_ARP_and_STP.29 # cd /proc/sys/net/bridge # ls bridge-nf-call-arptables bridge-nf-call-iptables bridge-nf-call-ip6tables bridge-nf-filter-vlan-tagged # for f in bridge-nf-*; do echo 0 $f; done But I'd like to have expert opinions on this: is it safe to disable all bridge-nf-*? What are they here for? END OF UPDATE I need to bridge LXC containers to the physical interface (eth0) of my host, reading numerous tutorials, documents and blog posts on the subject. I need the containers to have their own public IP (which I've previously done KVM/libvirt). After two days of searching and trying, I still can't make it work with LXC containers. The host runs a freshly installed Ubuntu Server Quantal (12.10) with only libvirt (which I'm not using here) and lxc installed. I created the containers with : lxc-create -t ubuntu -n mycontainer So they also run Ubuntu 12.10. Content of /var/lib/lxc/mycontainer/config is: lxc.utsname = mycontainer lxc.mount = /var/lib/lxc/test/fstab lxc.rootfs = /var/lib/lxc/test/rootfs lxc.network.type = veth lxc.network.flags = up lxc.network.link = br0 lxc.network.name = eth0 lxc.network.veth.pair = vethmycontainer lxc.network.ipv4 = 179.43.46.233 lxc.network.hwaddr= 02:00:00:86:5b:11 lxc.devttydir = lxc lxc.tty = 4 lxc.pts = 1024 lxc.arch = amd64 lxc.cap.drop = sys_module mac_admin mac_override lxc.pivotdir = lxc_putold # uncomment the next line to run the container unconfined: #lxc.aa_profile = unconfined lxc.cgroup.devices.deny = a # Allow any mknod (but not using the node) lxc.cgroup.devices.allow = c *:* m lxc.cgroup.devices.allow = b *:* m # /dev/null and zero lxc.cgroup.devices.allow = c 1:3 rwm lxc.cgroup.devices.allow = c 1:5 rwm # consoles lxc.cgroup.devices.allow = c 5:1 rwm lxc.cgroup.devices.allow = c 5:0 rwm #lxc.cgroup.devices.allow = c 4:0 rwm #lxc.cgroup.devices.allow = c 4:1 rwm # /dev/{,u}random lxc.cgroup.devices.allow = c 1:9 rwm lxc.cgroup.devices.allow = c 1:8 rwm lxc.cgroup.devices.allow = c 136:* rwm lxc.cgroup.devices.allow = c 5:2 rwm # rtc lxc.cgroup.devices.allow = c 254:0 rwm #fuse lxc.cgroup.devices.allow = c 10:229 rwm #tun lxc.cgroup.devices.allow = c 10:200 rwm #full lxc.cgroup.devices.allow = c 1:7 rwm #hpet lxc.cgroup.devices.allow = c 10:228 rwm #kvm lxc.cgroup.devices.allow = c 10:232 rwm Then I changed my host /etc/network/interfaces to: auto lo iface lo inet loopback auto br0 iface br0 inet static bridge_ports eth0 bridge_fd 0 address 92.281.86.226 netmask 255.255.255.0 network 92.281.86.0 broadcast 92.281.86.255 gateway 92.281.86.254 dns-nameservers 213.186.33.99 dns-search ovh.net When I try command line configuration ("brctl addif", "ifconfig eth0", etc.) my remote host becomes inaccessible and I have to hard reboot it. I changed the content of /var/lib/lxc/mycontainer/rootfs/etc/network/interfaces to: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 179.43.46.233 netmask 255.255.255.255 broadcast 178.33.40.233 gateway 92.281.86.254 It takes several minutes for mycontainer to start (lxc-start -n mycontainer). I tried replacing gateway 92.281.86.254 by : post-up route add 92.281.86.254 dev eth0 post-up route add default gw 92.281.86.254 post-down route del 92.281.86.254 dev eth0 post-down route del default gw 92.281.86.254 My container then starts instantly. But whatever configuration I set in /var/lib/lxc/mycontainer/rootfs/etc/network/interfaces, I cannot ping from mycontainer to any IP (including the host's) : ubuntu@mycontainer:~$ ping 92.281.86.226 PING 92.281.86.226 (92.281.86.226) 56(84) bytes of data. ^C --- 92.281.86.226 ping statistics --- 6 packets transmitted, 0 received, 100% packet loss, time 5031ms And my host cannot ping the container: root@host:~# ping 179.43.46.233 PING 179.43.46.233 (179.43.46.233) 56(84) bytes of data. ^C --- 179.43.46.233 ping statistics --- 5 packets transmitted, 0 received, 100% packet loss, time 4000ms My container's ifconfig: ubuntu@mycontainer:~$ ifconfig eth0 Link encap:Ethernet HWaddr 02:00:00:86:5b:11 inet addr:179.43.46.233 Bcast:255.255.255.255 Mask:0.0.0.0 inet6 addr: fe80::ff:fe79:5a31/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:64 errors:0 dropped:6 overruns:0 frame:0 TX packets:54 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4070 (4.0 KB) TX bytes:4168 (4.1 KB) 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:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:32 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2496 (2.4 KB) TX bytes:2496 (2.4 KB) My host's ifconfig: root@host:~# ifconfig br0 Link encap:Ethernet HWaddr 4c:72:b9:43:65:2b inet addr:92.281.86.226 Bcast:91.121.67.255 Mask:255.255.255.0 inet6 addr: fe80::4e72:b9ff:fe43:652b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1453 errors:0 dropped:18 overruns:0 frame:0 TX packets:1630 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:145125 (145.1 KB) TX bytes:299943 (299.9 KB) eth0 Link encap:Ethernet HWaddr 4c:72:b9:43:65:2b UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3178 errors:0 dropped:0 overruns:0 frame:0 TX packets:1637 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:298263 (298.2 KB) TX bytes:309167 (309.1 KB) Interrupt:20 Memory:fe500000-fe520000 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:6 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:300 (300.0 B) TX bytes:300 (300.0 B) vethtest Link encap:Ethernet HWaddr fe:0d:7f:3e:70:88 inet6 addr: fe80::fc0d:7fff:fe3e:7088/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:54 errors:0 dropped:0 overruns:0 frame:0 TX packets:67 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4168 (4.1 KB) TX bytes:4250 (4.2 KB) virbr0 Link encap:Ethernet HWaddr de:49:c5:66:cf:84 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 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:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) I have disabled lxcbr0 (USE_LXC_BRIDGE="false" in /etc/default/lxc). root@host:~# brctl show bridge name bridge id STP enabled interfaces br0 8000.4c72b943652b no eth0 vethtest I have configured the IP 179.43.46.233 to point to 02:00:00:86:5b:11 in my hosting provider (OVH) config panel. (The IPs in this post are not the real ones.) Thanks for reading this long question! :-) Vianney

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  • Chassis fans and power LEDs still work in Hibernate

    - by Jaded
    I have ASRock Z68 Extreme3 Gen3 motherboard recently updated to 2.20 BIOS version. OS is Windows 7 x64. The problem is after that update full hibernation (by that i mean full system power off) stopped working although everything was fine before. Now when I press hibernate, sleep in initiated as usual, monitor goes to sleep, HDD and CPU fan stop spinning, but chassis fans (i have Gigabyte Aurora 3D 570 case with two rear and one front fans) still remain working. Also power leds are lit as if computer is turned on. Tried changing different UEFI settings related to sleep mode, and none of them change above described behaviour. I have "Deep Sleep" (Advanced-South Bridge Configuration) set to "Enabled in S4-S5", "Suspend to RAM" (Advanced-ACPI Configuration) set to "Auto", all fans settings in "H/W Monitor" set to "Auto".

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  • How to get an inactive RAID device working again?

    - by Jonik
    After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it. * Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0. # mount /opt mount: wrong fs type, bad option, bad superblock on /dev/md_d0, missing codepage or helper program, or other error (could this be the IDE device where you in fact use ide-scsi so that sr0 or sda or so is needed?) In some cases useful info is found in syslog - try dmesg | tail or so The RAID device appears to be inactive somehow: # cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md_d0 : inactive sda4[0](S) 241095104 blocks # mdadm --detail /dev/md_d0 mdadm: md device /dev/md_d0 does not appear to be active. Question is, how to make the device active again (using mdmadm, I presume)? (Other times it's alright (active) after boot, and I can mount it manually without problems. But it still won't mount automatically even though I have it in /etc/fstab: /dev/md_d0 /opt ext4 defaults 0 0 So a bonus question: what should I do to make the RAID device automatically mount at /opt at boot time?) This is an Ubuntu 9.10 workstation. Background info about my RAID setup in this question. Edit: My /etc/mdadm/mdadm.conf looks like this. I've never touched this file, at least by hand. # by default, scan all partitions (/proc/partitions) for MD superblocks. # alternatively, specify devices to scan, using wildcards if desired. DEVICE partitions # auto-create devices with Debian standard permissions CREATE owner=root group=disk mode=0660 auto=yes # automatically tag new arrays as belonging to the local system HOMEHOST <system> # instruct the monitoring daemon where to send mail alerts MAILADDR <my mail address> # definitions of existing MD arrays # This file was auto-generated on Wed, 27 Jan 2010 17:14:36 +0200 In /proc/partitions the last entry is md_d0 at least now, after reboot, when the device happens to be active again. (I'm not sure if it would be the same when it's inactive.) Resolution: as Jimmy Hedman suggested, I took the output of mdadm --examine --scan: ARRAY /dev/md0 level=raid1 num-devices=2 UUID=de8fbd92[...] and added it in /etc/mdadm/mdadm.conf, which seems to have fixed the main problem. After changing /etc/fstab to use /dev/md0 again (instead of /dev/md_d0), the RAID device also gets automatically mounted!

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  • Connect to wired and wireless networks at same time, Ubuntu

    - by Gary Chambers
    Currently, I have a media PC running Ubuntu 10.04 that I am trying to connect via a wired network cable directly to a NAS box, and wirelessly to the router. This works no problem after I run sudo /etc/init.d/networking restart but I can't get both interfaces to come up on system startup. My /etc/network/interfaces file reads as follows: auto eth0 iface eth0 inet static address 10.0.1.2 netmask 255.255.254.0 broadcast 10.0.1.255 network 10.0.1.0 auto wlan2 iface wlan2 inet dhcp As I say, I know this works, because I can get it to work by restarting the network interfaces, but I can't bring them both up on system startup. Does anyone know why this might be?

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  • Name typing in the "TO" line for last name recognition

    - by Buck
    I have outlook 2010 on a Windows 7 laptop. When I go to send an email at the "TO" line and I start typing the name, if I start to enter the last name it will not recognize anyone in my contacts and will not auto-populate a list of all the names that fit the description of what I have typed so far. But if I start typing the first name first it will start this auto-choice feature based on what I have typed so far. The company I work for has 20k + employees and If I want to email someone like "Michael Hutch " if I type "Michael" it still gives me like 800 names to chose from. My old laptop that had 2003 Outlook on it, had this functionality. Is there a way to enable this in Outlook 2010?

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  • Getting kernel errors when manually mounting VirtualBox shared folders

    - by Ross
    Updated: I've rephrased this problem as I understand it a bit more now (and have encountered another problem). I'm using a Fedora 15 guest on a Windows 7 host using VirtualBox. I am trying to mount a partition on the host PC as a shared folder for use in the guest. The folder appears in /media and is accessible when I use the auto-mount feature when setting up the shared folder, but when I attempt to mount without auto-mount I get the following error: $ sudo mount.vboxsf data /mnt/host_data /sbin/mount.vboxsf: Could not add an entry to the mount table.: Invalid argument In addition a popup appears (part of Fedora/GNOME) reporting a crash in the kernel package: WARNING: at lib/list_debug.c:26 __list_add+0x3e/0x81() However the shared folder seems to work, I can certainly browse it (although everything seems to be executable, probably down to a Windows host). Is there something wrong with what I'm doing or is this a bug (and in which case should it be reported to the Linux Kernel team or VirtualBox)?

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  • Postfix Vacation.pl with local users

    - by Simiyu
    Hi, I am trying to setup the vacation.pl script on a mail servers which has local users only (since they are only 10 users). I have installed the SquirrelMail plugin and the Auto respond option is available for the users, but when an email is sent to the addresses no auto reply email is sent to the sender. There are also no logs on the /var/log/vacation folder which i created as well as the normal log files. Most of the examples online refer to virtual users, can it work with local users? and if so how? regards, Arthur

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  • Text not Being Placed Correctly In the Center

    - by ThatMacLad
    This is another noobish mistake from me but I've placed some text in my page but after adding some padding to my div tag it's impossible for me to place my Text in the vertical center. Here is a preview of my problem: The CSS: body { background-image: url(../images/body-bg.jpg); font-family: arial; } .cms-head { background-image: url(../images/cms-head.png); background-repeat: no-repeat; width: 850px; height: 50px; padding: 5px; margin-bottom: -10px; } .posts-list { background-image: url(../images/new-post-b.png);; width: 840px; height: 500px; padding: 5px; border-bottom: 1px solid #000000; } .content { width: 850px; height: 500px; margin-left: auto; margin-right: auto; } .edit-post-but { background-image: url(../images/new-button.png); background-repeat: no-repeat; width: 60px; height: 40px; } .post-title { width: 834px; height: 40px; background-image: url(../images/post-head.png); background-repeat: no-repeat; -moz-border-radius: 5px; -webkit-border-radius: 5px; margin-left: auto; margin-right: auto; padding: 5px; font-size: 20px; color: #ffffff; } .bottom { width: 850px; height: 50px; background-image: url(../images/cms-bot.png); background-repeat: no-repeat; } a:active, a:link, a:visited{ color: #ffffff; } a:hover{ text-decoration:none; } The HTML/PHP: <html> <head> <title>Blog Name | Edit Post</title> <link rel="stylesheet" href="css/cms.css" type="text/css" /> </head> <body> <div class="content"> <div class="cms-head"> <a href="newpost.php"><img src="images/new-button.png" /></a> <a href="#"><img src="images/rss-button.png" /></a> </div> <div class="posts-list"> <?php mysql_connect ('localhost', 'root', 'root') ; mysql_select_db ('tmlblog'); $result = mysql_query("SELECT timestamp, id, title FROM php_blog ORDER BY id DESC"); while($row = mysql_fetch_array($result)) { $date = date("l F d Y",$row['timestamp']); $id = $row['id']; $title = strip_tags(stripslashes($row['title'])); if (mb_strlen($title) >= 50) { $title = substr($title, 0, 50); $title = $title . "..."; } print("<div class='post-title'><a href=\"update.php?id=" . $id . "\"><img src='images/edit-button.png'></a>$title<br /></div>"); } mysql_close(); ?> </div> <div class="bottom"></div> </div> </body> </html>

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  • How should I implement an email circuit test?

    - by lukecyca
    I want a high-level test that ensures that both incoming and outgoing email services are operating normally. I've achieved this by writing a python script which does this: Send a message with a unique hash through my mail server to [email protected] The gmail account is configured to auto-reply back to the same address and then delete the message. My script polls IMAP until it finds an email with the correct hash sitting in its inbox, or times out. It reports the elapsed time to my monitoring software (Zabbix) My question: Is gmail the best third-party to use? Should I add a couple others as well such as hotmail and yahoo? Is there anyone more official that will auto-reply to these sorts of "mail pings"? Any other recommendations for this type of test?

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  • Nvidia Drivers on Debian / Lenny (Stable) -> Installation successful -> Monitors gets black

    - by David
    I have successfully installed the proprietary drivers for my nvidia (geforce 7300 gt) graphics card on debian/lenny. I know its not the best way to chose for driver installation ( see this link: http://wiki.debian.org/NvidiaGraphicsDrivers#non-freedrivers ). but the two ways seem to be possible for me (nvidia-kernel module compilation). Now the problem is that the monitors gets black, the power light starts blinking after i launch the x-server. Have a short look a the logs (output truncated from /var/log/Xorg.0.log): (II) Setting vga for screen 0. (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32 (==) NVIDIA(0): RGB weight 888 (==) NVIDIA(0): Default visual is TrueColor (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0) (**) Jul 28 17:10:11 NVIDIA(0): Enabling RENDER acceleration (II) Jul 28 17:10:11 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is (II) Jul 28 17:10:11 NVIDIA(0): enabled. (II) Jul 28 17:10:11 NVIDIA(0): NVIDIA GPU GeForce 7300 GT (G73) at PCI:1:0:0 (GPU-0) (--) Jul 28 17:10:11 NVIDIA(0): Memory: 262144 kBytes (--) Jul 28 17:10:11 NVIDIA(0): VideoBIOS: 05.73.22.25.00 (II) Jul 28 17:10:11 NVIDIA(0): Detected PCI Express Link width: 16X (--) Jul 28 17:10:11 NVIDIA(0): Interlaced video modes are supported on this GPU (--) Jul 28 17:10:11 NVIDIA(0): Connected display device(s) on GeForce 7300 GT at PCI:1:0:0: (--) Jul 28 17:10:11 NVIDIA(0): Samsung SyncMaster (CRT-0) (--) Jul 28 17:10:11 NVIDIA(0): Samsung SyncMaster (DFP-0) (--) Jul 28 17:10:11 NVIDIA(0): Samsung SyncMaster (CRT-0): 400.0 MHz maximum pixel clock (--) Jul 28 17:10:11 NVIDIA(0): Samsung SyncMaster (DFP-0): 165.0 MHz maximum pixel clock (--) Jul 28 17:10:11 NVIDIA(0): Samsung SyncMaster (DFP-0): Internal Single Link TMDS (II) Jul 28 17:10:11 NVIDIA(0): Assigned Display Device: CRT-0 (==) Jul 28 17:10:11 NVIDIA(0): (==) Jul 28 17:10:11 NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select" (==) Jul 28 17:10:11 NVIDIA(0): will be used as the requested mode. (==) Jul 28 17:10:11 NVIDIA(0): (II) Jul 28 17:10:11 NVIDIA(0): Validated modes: (II) Jul 28 17:10:11 NVIDIA(0): "nvidia-auto-select" (II) Jul 28 17:10:11 NVIDIA(0): Virtual screen size determined to be 1280 x 1024 (--) Jul 28 17:10:11 NVIDIA(0): DPI set to (85, 86); computed from "UseEdidDpi" X config (--) Jul 28 17:10:11 NVIDIA(0): option (==) Jul 28 17:10:11 NVIDIA(0): Enabling 32-bit ARGB GLX visuals. (--) Depth 24 pixmap format is 32 bpp Here is the complete /etc/X11/xorg.conf file as generated by nvidia-xconfig: # nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 256.35 (buildmeister@builder101) Wed Jun 16 19:25:59 PDT 2010 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" EndSection Section "Files" EndSection Section "Module" Load "dbe" Load "extmod" Load "type1" Load "freetype" Load "glx" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Unknown" ModelName "Unknown" Hor

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  • Div in HTML not floating left with CSS

    - by rusty009
    My div with class name 'header-body-right' doesn't seem to be floating to the left of my div named 'header-body-centre' and I can't understand why, here is my HTML, <!DOCTYPE HTML> <HTML> <HEAD> <TITLE> </TITLE> <meta charset="UTF-8" /> <link href="main.css" rel="stylesheet" type="text/css"> <META NAME="Generator" CONTENT="Notepad"> <META NAME="Author" CONTENT="00"> <META NAME="KEYWORDS" CONTENT="" /> <META NAME="DESCRIPTION" CONTENT="" /> </HEAD> <BODY> <div class="header-top"> </div> <div class="header-body"> <div class="header-body-centre"> <div class="logo"> <img src="logo.png" /> </div> </div> <div class="header-body-right"> test </div> </div> <div class="navbar"> </div> <div class="content-container"> </div> </BODY> </HTML> The CSS I am using for the code is posted below, body { margin:0px; padding:0px; } .header-top { height:11px; width:100%; background-image: url('HeaderTopNav.png'); background-repeat: repeat-x; } .header-body { width:100%; height:100px; } .header-body-centre { margin: 0 auto; height:100%; width:70%; } .header-body-right { width:15%; height:100px; float:left; } .navbar { height:35px; width:auto; border: 1px solid green; } .logo { margin-top:35px; float:left; } .quickNav { float:right; } .container { margin: 0 auto; background-color: #fff; border: 2px solid #c9c8c8; border-bottom: none; height:auto; overflow:hidden; width: 1000px; clear:both; } Can anyone see why? I have tried floating the header-bosy-centre and decreasing the width of the header-body-right but nothing works. Can anyone see what I have done wrong? I am out of ideas. Thanks.

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  • Windows XP: Consequences of setting a password for an account

    - by sleske
    I do not quite understand how Windows (specifically Windows XP) handles accounts with/without passwords. As far as I can see, on a fresh Windows XP install I have one default account which has admin rights does not have a password will auto-login (without password prompt) when the computer boots What happens if I set a password for this account? Will it still auto-login? Or will it always prompt for the PW? And generally, what consequences does it have if I set a password? I noted that Scheduled Tasks apparently cannot run under an account w/o password (creating a scheduled task will prompt for the account PW). Is there anything that will not work with a password set? Why is it even possible to have accounts without a password? I have some Unix/Linux background, but the concepts appear a little different under Windows.

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  • Top ten security tips for non-technical users

    - by Justin
    I'm giving a presentation later this week to the staff at the company where I work. The goal of the presentation is to serve as a refresher/remidner of good practices that can help keep our network secure. The audience is made up of both programmers and non-technical staff, so the presentation is geared for non-technical users. I want part of this presentation to be a top list of "tips". The list needs to be short (to encourage memory) and be specific and relevant to the user. I have the following five items so far: Never open an attachment you didn't expect Only download software from a trusted source, like download.com Do not distribute passwords when requested via phone or email Be wary of social engineering Do not store sensitive data on an FTP server I have two questions: Do you suggest any additional items? Do you suggest any changes to existing items?

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  • Email server for huge number of subscriber

    - by bogha
    My question is that my company is thinking of providing a free email account for each of its customers. As a new company we will assume that our corporate email system will be MS Exchange server which will support about 1000 employees. They are asking why not adding the customer list to be a part of Exchange users. My suggestion was to separate the two systems, for the corporate we can use Exchange but for customers (around 30000) we have to use a Linux based system. My only argument was that Linux can be used for enterprise services like this and Microsoft may fail. What do you suggest? And if you are with me on choosing Linux as the server platform, what do you suggest to use as an alternative for Exchange in Linux? Thank you.

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  • Heading div images should be displayed at a lower depth

    - by Mack
    I have a webpage where the top 25% of the page is the heading(with images in it) & the rest of the page has the content. I am trying to get the heading div to display is pictures at a lower depth as the content div because currently the heading images overflow into the content div(intentionally) & when they do they mess up the positioning of the HTML elements in the content div. My code below should make the heading div display below the content div but it doesn't. Can you help me figure out why & how to fix it? My CSS: html, body { height: 100%; width: 100%; } body { background-color: RGB(255, 255, 255); margin: 20px; text-align: center; } #outerContainer { background-color: #DCFF9A; height: 100%; width: 100%; } #header { width: 1200px; height: 25%; background-color: blue; margin-left: auto; margin-right: auto; overflow: visible; z-index: -5; } #main { display: block; width: 1200px; height: 60%; background-color: blue; margin-left: auto; margin-right: auto; z-index: 5; } #navBar { float: left; height: 800px; width: 240px; background-color: red; } #content { float: left; height: 800px; width: 760px; background-color: yellow; } #kamaleiText { float: left; } #kamaleiLogo { float: left; padding-top: 30px; background-color: green; z-index: inherit; } #kamaleiLeaves { float: right; z-index: -2; background-color: cyan; z-index: inherit; } And my HTML is the following: <body> <div id="outerContainer"> <div id="header"> <img id="kamaleiLogo" src="" alt="Pic1" height="98%" width="300px"/> <!-- Knowtice if I set the width to something smaller then everything is spaced out correctly, so these elements are not being shown below others when they should be --> <img id="kamaleiLeaves" src="" alt="Pic2" height="300px" width="300px"/> </div> <br/> <div id="main"> <div id="navBar"> </div> <div id="content"> abcdef </div> </div> </div> </body>

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  • NIC is receiving, but not transmitting at all?

    - by Shtééf
    I'm trying to fix a very strange problem remotely on a machine at a customer site. The machine is a Dell PowerEdge, I believe a 1950 (haven't verified, but the lspci output matches specs I found.) The machine has two similar NICs, identified as Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12) by lspci, and using the bnx2 driver. (I suspect these are on-board and on the same controller, which is what I'm accustomed to for this type of machine.) The primary interface eth0 works perfectly, and is in fact how I am ssh'd in. However, the secondary interface eth1 is not transmitting. I can see this in ifconfig output, for example, where the TX field is always 0. However, it is receiving, and tcpdump shows ARP requests coming from the ISP's gateway on the other side. The interface is physically connected to a Siemens BSTU4 modem, configured by the ISP. The link is properly set to 10MBps and full duplex, without negotation, as the ISP requested. A small /30 subnet is configured. For the sake of anonimity, let's say the machine is 3.3.3.2/30, and the ISP's gateway .1. The machine has no firewall settings whatsoever. Even running something like arping -I eth1 3.3.3.1, and running tcpdump alongside, shows no traffic whatsoever being transmitted on the interface. (But the other side keeps steadily sending ARP requests, and that is all that can be seen.) What could be causing this? Here's some output, anonymized, which may hopefully help: $ ethtool eth1 Settings for eth1: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: Not reported Advertised auto-negotiation: No Speed: 10Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: off Supports Wake-on: d Wake-on: d Link detected: yes $ ip link show eth1 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:15:c5:xx:xx:xx brd ff:ff:ff:ff:ff:ff $ ip -4 addr show eth1 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 inet 3.3.3.2/30 brd 3.3.3.3 scope global eth1 $ ip -4 route show match 3.3.3.0/30 3.3.3.0/30 dev eth1 proto kernel scope link src 3.3.3.2 default via 10.0.0.5 dev eth0

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  • How do I get a 300Mbps connection over 802.11n?

    - by Daniel Schaffer
    I just bought a new wireless setup, consisting of a Cisco E2000 router, Edimax 7718un USB adapter for my laptop and an Edimax 7728in PCI adapter for my HTPC (which isn't in a location I can run cat5 to). I have to stay in the 2.4GHz band because I have an iPhone and a Wii that will need to connect. I'm aware that 11g devices will drop speeds for 11n devices, but they aren't connected yet. The fastest connection I've been able to get, with the router within 5 feet of either the laptop or HTPC is 144Mbps. The router has settings for "20MHz" and "Auto (20 MHz or 40Mhz) channel width, which I've set to the "Auto" setting. I haven't been able to find anything similar for either of the Edimax adapters. This is the first I've dealt with 11n, so I'm not even sure what else could be causing a problem. How do I get up to 300Mbps, or at least a fair bit closer?

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  • Way to wake up win-xp pc, without hibernate or network?

    - by crosenblum
    I have no need to wake up a remote pc, just the pc I use at work. I want to wake it up, by itself, without having to use hibernate, which I am not comfortable with, or have ever used. Then I can have the "System Scheduler" freeware that I use, to automatically do anti-virus updates, anti-malware updates, ccleaner /auto of course... It just would make my day's easier if it was already on by the time I arrived, I usually always turn my pc off when I am done with work, or if I didn't, I have a scheduled task to auto-shutdown pc 1 hour after my normal work hours... Without using hibernate, can i get my pc to wake up on it's own at a certain time each weekday?

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  • Elevate the weight of browsing history in Google Chrome's autocomplete

    - by maayank
    Google Chrome has the feature of auto-completing web addresses while you type them in the address bar. Alas, it gives absurdly more weight to Google's own auto-suggest v.s. my own browsing history, which seems a bit foolish - if I regularly (i.e. twice a week) check a certain website with the keywords "foo bar ponies" in its url, it is reasonable to expect that I will want to visit that site again and not other sites. While a bit subjective, to the very least I would expect such URLs to be in the list Chrome suggests, even if not at the top. Is there some plugin/secret option that alters the default behavior?

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  • Why has the NoScript icon disappeared?

    - by Peter Mortensen
    Why has the appearence of NoScript changed? Using Noscript in Firefox (Microsoft Windows): Until now there has been an icon (the S icon) in the lower right of the screen. But now there is an button instead with the text "Options". Left clicking this button seems to bring up the menu as right clicking the old icon. Can I restore the previous state? Is there an auto-update function in NoScript and if so could it have caused the change? If it exists can the auto-update function be disabled? Platform: Firefox 3.0.6, NoScript 1.9.0.6, Windows XP 64 bit, 8 GB RAM.

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  • Custom grub config hangs at the prompt

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

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  • Ubuntu 11.10 firewall/gateway - no client internet access

    - by Siriss
    I have read many other posts but cannot figure this out. eth0 is my external connected to a Comcast modem. The server has internet access with no issues. eth1 is internal and running DHCP for the clients. I have DHCP working just fine, all my clients can get an IP and ping the server but they cannot access the internet. I am using ISC-DHCP-SERVER and have set /etc/default/isc-dhcp-server to INTERFACE="eht1" Here is my dhcpd.conf file located in /etc/dhcp/dhcpd.conf ddns-update-style interim; ignore client-updates; subnet 10.0.10.0 netmask 255.255.255.0 { range 10.0.10.10 10.0.10.200; option routers 10.0.10.2; option subnet-mask 255.255.255.0; option domain-name-servers 208.67.222.222, 208.67.220.220; #OpenDNS # option domain-name "example.com"; default-lease-time 21600; max-lease-time 43200; authoritative; } I have made the *net.ipv4.ip_forward=1* change in /etc/sysctl.conf here is my interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp iface eth1 inet static address 10.0.10.2 netmask 255.255.255.0 network 10.0.10.0 auto eth1 And finally- here is my iptables.conf file: # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *nat :PREROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -s 10.0.10.0/24 -o eth0 -j MASQUERADE #-A PREROUTING -i eth0 -p tcp --dport 59668 -j DNAT --to-destination 10.0.10.2:59668 COMMIT *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -i eth1 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 53 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 53 -j ACCEPT -A FORWARD -s 10.0.10.0/24 -o eth0 -j ACCEPT -A FORWARD -d 10.0.10.0/24 -m state --state ESTABLISHED,RELATED -i eth0 -j ACCEPT -A FORWARD -p icmp -j ACCEPT -A FORWARD -i lo -j ACCEPT -A FORWARD -i eth1 -j ACCEPT #-A FORWARD -i eth0 -m state --state NEW -m tcp -p tcp -d 10.0.10.2 --dport 59668 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT I am completely stuck. I cannot figure out why the clients cannot access the internet. Am I missing a service? Is a service not running? Any help would be greatly appreciated. I tried to be as thorough as possible but please let me know if I have missed something. Thank you!

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