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  • How to fix Ubuntu 10.10 black screen from terminal?

    - by none
    I'm trying to install Ubuntu Desktop 10.10 on an Intel Atom mainboard (Intel D945GCLF2) with CRT that has been running Ubuntu 9.x previously. Both, Desktop live CD / installer and alternate install CD cause the screen to go black (and the status LED blinks). I was able to get a bit further into the boot process with nomodeset as parameter with the Live CD, unfortunately I can't pass GRUB any parameters now that I have used the alternate Install CD by pressing 'e', it just boots. So now I have Ubuntu installed, I get a terminal with CTRL-ALT-F1 but I don't know what I need to do now or how to adjust resolution or video settings from command line.

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  • How to Extending a logical volume in WMWare

    - by Mercer
    down vote favorite i have a CentOS 6.3 into my Virtual Machine. I have 2 Disk: Disk#1 = 18G Disk#2 = 20G [root@vm ~]# df -h Filesystem Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_system-lv_root 1008M 250M 708M 27% / tmpfs 1.9G 0 1.9G 0% /dev/shm /dev/sda1 194M 31M 154M 17% /boot /dev/mapper/vg_system-lv_home 504M 17M 462M 4% /home /dev/mapper/vg_system-lv_opt 2.0G 68M 1.9G 4% /opt /dev/mapper/vg_produits-lv_grid 6.9G 2.5G 4.1G 38% /opt/grid /dev/mapper/vg_produits-lv_oracle 6.9G 144M 6.4G 3% /opt/oracle /dev/mapper/vg_system-lv_tmp 2.8G 71M 2.6G 3% /tmp /dev/mapper/vg_system-lv_usr 2.5G 1.6G 799M 67% /usr /dev/mapper/vg_system-lv_var 2.0G 278M 1.6G 15% /var So i want to extend my /tmp and my /opt/oracle like this: 10Go in/tmp 13Go in /opt/oracle Thx.

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  • Basic connectivity issues between Win 7 and XP mixed wired/wireless network. [Solved]

    - by Pulse
    Setup: Windows 7 x64 Ultimate desktop hard wired to Asus WL500gp router (WL500gpv2-1.9.2.7-d-r1445 firmware) Several Bridged VirtualBox VM's running XP, 7, ubuntu server 10.04, Mint 9 and SuSE 11.2 Win XP Pro SP3 notebook with D-Link Airplus wireless network card. No firewall or other security software currently running on either platform (at least for the duration of the test) Situation: Router is acting DHCP server Clients are receiving correct addresses and additional parameters Internet connectivity is available from all clients Windows 7 sharing is set to Network type = work (not home group) NetBT is disabled on all clients using smb over TCP What I can do: I can ping the router and internet addresses from the wireless XP notebook I can ping the Win 7 desktop and any VM from the XP wireless notebook I can ping all devices from the router All VM's and 7 can ping each other and the router as well as Internet addresses What I can't do: I cannot ping the XP wireless notebook from either the Win 7 desktop or the VM's; it always returns a destination host unreachable error. Tracert resolves the name or the XP notebook but also returns a destination host unreachable. From the above it would seem that something is blocking connectivity in a single direction (from the Win 7 box to the Win XP notebook) only but the router can ping the XP notebook. Some fresh input would be most welcome, as this is beginning to drive me batty. Thanks

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  • Single application through OpenVPN tunnel (Debian Lenny)

    - by user14124
    I'm using Debian Lenny and I want to tunnel rtorrent only through a OpenVPN tunnel. I have a tunnel running, the config file looks like this: client dev tun proto udp remote openvpn.xxx.com 1194 resolv-retry infinite nobind persist-key persist-tun ca /etc/openvpn/xxx/keys/ca.crt cert /etc/openvpn/xxx/keys/client.crt key /etc/openvpn/xxx/keys/client.key tls-auth /etc/openvpn/xxx/keys/tls.key 1 ns-cert-type server comp-lzo verb 3 auth-user-pass script-security 3 reneg-sec 0 My idea is that I could run a sockd proxy internally that redirects traffic to the openvpn tunnel. I could use the *nix "proxifier" application "tsocks" to make it possible for rtorrent to connect through that proxy (as rtorrent doesn't support proxies). I have trouble configuring sockd as my IP inside the VPN changes every time I connect. This is a config file someone said would help: http://ircpimps.org/sockd.conf As my IP changes at each connect I don't know what to put in that config file. I have no control over the host side config file. Any help wanted. Any other method is very welcome.

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  • How to get the speed of a network card on the command line?

    - by nelaar
    I am trying to see what the speed of some network cards on a remote server. Our reporting software says they are 10Mbps, but I am sure that is wrong they should be 1Gbps. Our monitoring software uses SNMP to query the servers, perhaps the servers are reporting information incorrectly. ifconfig does not report what the speed of the devices are. How can I see what the currently configured speed of the cards are.

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  • cannot find java even though it is there (ubuntu 12.04)

    - by Jeff Storey
    I'm trying to just execute the java command and it's saying it cannot be found, even though it is there. Here's what my output looks like root@oneiric:/usr/lib/jvm/default-java/bin# ls -al java -rwxrwxrwx 1 uucp 143 5750 2012-09-20 11:14 java root@oneiric:/usr/lib/jvm/default-java/bin# ./java -su: ./java: No such file or directory So the ls shows it's there, but it doesn't seem to execute. Can someone explain why this is?

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  • Hardware recommendations for building an Ubuntu encrypted file server

    - by Robert Mashlan
    I would like to build a file server for my home network using Ubuntu. It will serve files from RAID1 configured disks, either in the OS or in hardware. It will be connected to a Gigabit ethernet LAN. The disks will use an encrypted file system. It will serve samba shares. I would like a recommendation on what kind of processing power/memory I would need to build a box that would be able to sustain the full capacity of the Gigabit ethernet connection in a file transfer for a single connection with the overhead of serving from an encrypted disk. I'm not looking to build a dream server, I just want enough processing capacity for high performance (and reliable) file sharing and spend as little as possible for it. This may be tangential, but what kind of hardware would I need to have a server be able to reliably go into a low power mode when no requests are being made of it?

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  • Will deleting partitions affect my hard drive in any way?

    - by Portali5t
    I installed a Suse partition of around 200 Gigabytes on my hard drive, primarily running Windows 7. I am sick of Suse's crap, and just want to get rid of the OS and get that partition back for Windows' use. Is it as simple as that partition gets deleted,and I can choose what partition that space goes to, or is it communal that all partitions can access? I know next to nothing about partitions, so any help would be great. Also, if someone knows HOW to delete partitions, that would be a great help too. Thanks!

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  • How to read iptables -L output?

    - by skrebbel
    I'm rather new to iptables, and I'm trying to understand its output. I tried to RTFM, but to no avail when it comes to little details like these. When iptables -vnL gives me a line such as: Chain INPUT (policy DROP 2199 packets, 304K bytes) I understand the first part: on incoming data, if the list below this line does not provide any exceptions, then the default policy is to DROP incoming packets. But what does the 2199 packets, 304K bytes part mean? Is that all the packets that were dropped? Is there any way to find out which packets that were, and where they came from? Thanks!

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  • Cannot Login as root

    - by Josh Moore
    At my work we ship our product on pre-installed servers as a software/hardware package. We are using open SUSE 10.3 for the OS and we setup and we always log in with the root user to do maintenance on the box. Recently we just had box returned to us that the customer said the could not longer connect to the box through the network interface. So when I started to work on the box I run into the this problem: At the command prompt to login i type the user name "root" and hit enter. Then even before it asks me for a password I get "Login incorrect". I have never seen this behavior before and could not find any information about it online. Does anybody know what is going on? Thanks.

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  • blocking port 80 via iptables

    - by JoyIan Yee-Hernandez
    I'm having problems with iptables. I am trying to block port 80 from the outside, basically plan is we just need to Tunnel via SSH then we can get on the GUI etc. on a server I have this in my rule: Chain OUTPUT (policy ACCEPT 28145 packets, 14M bytes) pkts bytes target prot opt in out source destination 0 0 DROP tcp -- * eth1 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 state NEW,ESTABLISHED And Chain INPUT (policy DROP 41 packets, 6041 bytes) 0 0 DROP tcp -- eth1 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 state NEW,ESTABLISHED Any guys wanna share some insights?

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  • Sendmail: Use SMART_HOST for local mail

    - by bradlis7
    We are running an outbound SPAM filter, and we'd like to be able to have the mail sent through that filter, even when it's to a local user. Is there a way to force sendmail to use the SMART_HOST, even when it is going to be delivered locally?

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  • php extensions & apache mods gone/not working after server restart?

    - by user1782359
    I was wondering if anyone has ever come across this before, as I'm pretty stumped to be honest, and my server admin knowledge isn't particular good so I'm not sure what could even be wrong, let alone how to fix it. Basically, Thursday last week everything was fine on our server. I come in on Friday and it's a mess: php extensions are missing/not working, apache modules are gone. (e.g. oci_* was gone completely, odbc_ not working but still there, the apache ntlm_auth for single sign on was gone and so the website wasn't even loading in IE). I'm ruling out anything deliberate because it's just incredibly unlikely. The only thing that really happened between thursday & friday is that on thursday evening one of the network guys did a RAM upgrade on the server and restarted it. That's it, nothing else. Now I'm wondering if somehow those extensions and such which we installed months ago were somehow only saved in a local memory of sorts, and a restart has wiped them? But we installed them all as root, so I don't see why it should be any different from installing anything else. It makes little/no sense to me. To expand on an example of something that's gone very wrong, the php odbc_ extension: It's still on the server, it doesn't return undefined function or anything. But it just cannot connect to the datasource any more. I've tested it through the command line and it's working perfectly fine with that datasource and login details, but all of a sudden having it in the php odbc_connect() function and it just can't connect. ( [S1000][unixODBC][FreeTDS][SQL Server]Unable to connect to data source. ) But unixODBC is set up fine. Like I say i've tested it all through the terminal and it can connect, and we've not changed anything, it's just now all of a sudden not working through the PHP function. Anyone have any ideas whatsoever as to what could be going on? This is on CentOS 5.x by the way.

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  • OpenVPN on port 53

    - by TossUser
    I have an openvpn server setup on UDP port 53 on a public IP. All the connecting clients gets pushed external DNS servers such as 8.8.8.8 and opendns. Sometimes the resolution stops working on the connected vpn clients and I get strange packets in the openvpn log. Now my question is why is that? When a VPN client, let's say 192.168.1.22 does a DNS query that query should go to 8.8.8.8:53 and then an UDP response packet should be sent back to 192.168.1.22 on a high UDP port. Any ideas? Thanks

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  • Is there a version of Debian-Lenny that is legal for export from the US?

    - by molecules
    I wanted to bundle my application in a Debian-Lenny Virtual Machine so others could download it and run it without having to configure anything. However, I don't want to have to worry about US legal issues. Many of the packages in a default Debian installation include encryption algorithms. Are all default versions export-safe?    If not, is there an export-safe version?       If not, is there an easy way to make one?

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  • What is the meaning of the 'Personalities' feature under /proc/mdstat

    - by drcelus
    On some systems I see this : Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty] md1 : active raid1 sdb1[1] sda1[0] 10485696 blocks [2/2] [UU] md2 : active raid1 sdb2[1] sda2[0] 477371328 blocks [2/2] [UU] And other systems show : Personalities : [raid1] md0 : active raid1 sdb2[1] sda2[0] 204788 blocks super 1.0 [2/2] [UU] md1 : active raid1 sdb1[1] sda1[0] 4193272 blocks super 1.1 [2/2] [UU] md2 : active raid1 sda3[0] sdb3[1] 483985276 blocks super 1.1 [2/2] [UU] bitmap: 0/4 pages [0KB], 65536KB chunk I wonder what is the meaning of Personalities and the impact of having different values.

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  • sendmail appends server name to external domains when relaying

    - by Chris
    My server is set to send all email to a corporate relay server. For the company domain, it works perfectly. I've recently found emails being sent to an outside domain are getting the hostname of my server appended to the email prior to being sent. Here is the log entry for one such attempt. Nov 6 09:46:45 myservername sendmail[45023]: rA6EkjiI045023: [email protected], delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30590, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (rA6Ekj2g045037 Message accepted for delivery) Nov 6 09:46:45 myservername sendmail[45061]: rA6Ekj2g045037: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120885, relay=relay.company.com [x.x.x.x], dsn=2.0.0, stat=Sent (ok: Message 342335947 accepted) Notice the email address difference between it being accepted by my server for delivery (correct email address), and being sent and accepted by the corporate relay (incorrect with server name appended). To make it more interesting, the application on my server uses email for user account verification/activation. In August, this particular user was able to register his account and activate it. I have made no configuration changes to mail since setting the server up over a year ago. DNS is also a corporate service. I've never touched my /etc/resolv.conf configuration. domain company.com nameserver <ip1> nameserver <ip2> search myservername Thanks!

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  • securing communication between 2 Linux servers on local network for ports only they need access to

    - by gkdsp
    I have two Linux servers connected to each other via a cross-connect cable, forming a local network. One of the servers presents a DMZ for the other server (e.g. database server) that must be very secure. I'm restricting this question to communication between the two servers for ports that only need to be available to these servers (and no one else). Thus, communication between the two servers can be established by: (1) opening the required port(s) on both servers, and authenticating according to the applications' rules. (2) disabling IP Tables associated with the NIC cards the cross-connect cable is attached to (on both servers). Which method is more secure? In the first case, the needed ports are open to the external world, but protected by user name and password. In the second case, none of the needed ports are open to the outside world, but since the IP Tables are disabled for the NIC cards associated with the cross-connect cables, essentially all of the ports may be considered to be "open" between the two servers (and so if the server creating the DMZ is compromized, the hacker on the DMZ server could view all ports open using the cross-connect cable). Any conventional wisdom how to make the communication secure between two servers for ports only these servers need access to?

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  • Where is the root

    - by smwikipedia
    I read the manual page of the "mount" command, at it reads as below: All files accessible in a Unix system are arranged in one big tree, the file hierarchy, rooted at /. These files can be spread out over several devices. The mount command serves to attach the file system found on some device to the big file tree. My question is: Where is this "big tree" located?

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  • Microsoft dans le top 20 des contributeurs au noyau Linux, 75% du code fourni par des développeurs rémunérés

    Microsoft dans le top 20 des contributeurs au noyau Linux 75% du code fourni par des développeurs rémunérés La publication de la liste des contributeurs au noyau Linux vient confirmer une fois de plus que Microsoft voit en l'open source une opportunité plus qu'une menace. L'éditeur qui a déjà pris l'initiative de passer plusieurs de ses projets en open source et d'accepter pour la première fois des contributions externes pour certains, se hisse dans le top 20 des contributeurs au noyau Linux depuis la version ...

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  • VPS with multiple domains, can EXIM send mail from a different domain?

    - by Mike L.
    I building a site for a client on a VPS running CentOS 5.5 with cPanel WMH 11.28.60. The original domain is XXXXXinvestmenttrust.com. He has about a dozen domains on this server. The site I am building will have confirmation emails as well as provide users to anonymize their email address (like craigslist) I set up email piping to forward emails, but they are all being trapped in the spam folder. A close look at the headers, the emails appear to be comming from [email protected] rather than the actual domain. The IP has a rating of Neutral on www.senderbase.com. I believe it is the conflicting information in the header (the fields set by me, specify the actual domain where the headers put in place by EXIM specify to name of the server) Somewhere I read about SPF & MX entries can fix this, but I have been unable to figure out how. Also, All of the domains use the same IP, and the other websites do not send emails. So I could possibly make the domain in question, the primary (where all emails are sent from that domain by default) Is that possible?

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  • Url rewrite rule

    - by vvr
    How to redirect a page form show.php?id=(15charstring) to show/(15charstring) I tried like this it is doing reverse means it is redirecting /show/(15chars) to show.php?id=(15chars) RewriteEngine on RewriteRule ^/show/([a-zA-Z0-9]{15})$ http://site.com/show.php?id=$1 Second case is i have to redirect to another page if he added &m=true to the url show.php?id=(15chars)&m=true html/show.php?id=(15chars).

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