Search Results

Search found 26263 results on 1051 pages for 'linux guest'.

Page 449/1051 | < Previous Page | 445 446 447 448 449 450 451 452 453 454 455 456  | Next Page >

  • Allow outgoing connections for DNS

    - by Jimmy
    I'm new to IPtables, but I am trying to setup a secure server to host a website and allow SSH. This is what I have so far: #!/bin/sh i=/sbin/iptables # Flush all rules $i -F $i -X # Setup default filter policy $i -P INPUT DROP $i -P OUTPUT DROP $i -P FORWARD DROP # Respond to ping requests $i -A INPUT -p icmp --icmp-type any -j ACCEPT # Force SYN checks $i -A INPUT -p tcp ! --syn -m state --state NEW -j DROP # Drop all fragments $i -A INPUT -f -j DROP # Drop XMAS packets $i -A INPUT -p tcp --tcp-flags ALL ALL -j DROP # Drop NULL packets $i -A INPUT -p tcp --tcp-flags ALL NONE -j DROP # Stateful inspection $i -A INPUT -m state --state NEW -p tcp --dport 22 -j ACCEPT # Allow established connections $i -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allow unlimited traffic on loopback $i -A INPUT -i lo -j ACCEPT $i -A OUTPUT -o lo -j ACCEPT # Open nginx $i -A INPUT -p tcp --dport 443 -j ACCEPT $i -A INPUT -p tcp --dport 80 -j ACCEPT # Open SSH $i -A INPUT -p tcp --dport 22 -j ACCEPT However I've locked down my outgoing connections and it means I can't resolve any DNS. How do I allow that? Also, any other feedback is appreciated. James

    Read the article

  • Using remote station as original

    - by Neka
    I have 2 computers with totally same Debian, config, apps and other stuff. One at work and another at home. It's inconvenient to maintain the same configuration on these stations - upgrading OS, sync configuration, etc. Is there the way to use my home station as "host", and such a "terminal" at work? As if i have one HDD on 2 computers, but must use they own resources like an videocard and another. Looks like i need some remote tool as VNC, but this is no sessional event, I need to use "terminal" comp like original all of the time.

    Read the article

  • DHCP server inside a virtual machine can't see other machines

    - by William
    Hi, I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. Any advice? I'm assuming I need to be able to connect to my next-server but maybe I'm wrong. Thanks.

    Read the article

  • How to know that my IP is invalid

    - by PeterMmm
    I have a script running that will start up an interface with a new IP. If the script comes up with an IP that is already in use i am in trouble. Is it possible that the script set up the new Ip, detects that this IP is already in use and then check the next one, until it finds an ip that works ? B=192.168.1. I=1 while [ "$I" != "256" ] do ifconfig eth0:1 $B.$I # check here that IP is Ok ! let "I=I+1" done

    Read the article

  • how to properly edit hosts, hostname and resolf.conf? [migrated]

    - by Firewall
    i,v been searching the internet for a real noop tutorial on the subject but could not found any direct info. on how to edit these files the proper way. i,v got a debian internet server that i use to host some personal domains and runs squid and rTorrent. the server is up and running with no problems but i am confused about a few things. lets say that i named my server (foo), my domain is (example.com) and my public IP is 95.211.133.200 now: should /etc/hostname contains: tango.example.com or tango <----- just the server name should /etc/hosts contains: 127.0.0.1 localhost.localdomain localhost 95.211.133.200 foo.example.com foo should /etc/resolf.conf contains (along with the nameservers) both: domain example.com search example.com or just the first one. are there any other files that i should edit in order to make things right? last thing, the command: domainname returns: (none) i believe it should return (example.com). what should i do to correct that?

    Read the article

  • 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 ...

    Read the article

  • How to map Ctrl + ',' to greater key( '>') or Ctrl + '.' to less key( '<' ) using xmodmap?

    - by Maxrunner
    So im trying to creating a combination of keys to generate the ISO key for Portuguese layout, the key in question is the <, pressing it normally will generate the '<' character, pressing + shift will generate the ' ' character. So i'm trying to create a combination while using xmodmap, and i want this to work for all programs.I've been searching on Google and came up with this example for Control + P = Up: Control + p = Up arrow example The example for that behaviour is: xmodmap -e "keycode 33 = p P Up" keycode 33 matches the p key, so where does control comes up in that command? regards,

    Read the article

  • GRUB2 not detecting OS on raid partitions

    - by sleeves
    I have recently added a drive to a system and have successfully raid'ed (RAID-1) the paritions, with the exception of the boot partition. I have it ready and mirrored, but can't get GRUB2 (update-grub) to find it. System: Ubuntu 11.04 Raid Metadata: 1.2 If I run update-grub, it finds the kernel images on the /dev/sda2 partition (present root) but not the images on /dev/md127. /dev/md127 is composed of "missing" and "/dev/sdb2". fdisk on /dev/sdb confirms that sdb2 is of type fd (raid autodetect) and is also flagged bootable. I have two things I want to do. Make the boot.cfg on /dev/sdb2 have a menu option to have the root be /dev/md127 Install grub onto /dev/md127 so the actual boot.cfg from there is being used. Thanks!

    Read the article

  • Terminal, vim and ssh color problem

    - by xaph
    I'm using vim for my editor. I've problems about the colors of vim. The same colorscheme of vim gives different outputs in terminal, ssh session and screen. I learnt they've different colors(16, 88 or 256). I don't care of using 16 color or 256 color. Also the terminal emulator is not very important to me. My questions: 1- How do I use same vim colorscheme with same output on everywhere? 2- I want to write a color definition and use it every terminal(maybe with Xdefaults file). Is it possible?

    Read the article

  • After my laptop wakes up from sleeping/hibernating, the LCD/brightness is very low. How can I set it to default?

    - by meder
    In Power Management Preferences, On AC Power tab, I have brightness to 100%. "Dim display when idle" is not checked. I know for sure my LCD brightness is capable of going higher, because if I hit Fn and F7 then it resets the monitor brightness and settings for a few seconds, but the resolution breaks and then the brightness goes back. PS: OS is Debian Lenny ( I set the tags but for clarification ) and laptop is a Thinkpad.

    Read the article

  • QNAP TS-419p as a VPN Gateway?

    - by heisenberg
    Hello, I am hoping one of you might be able to help. I want to make files stored on shared folders on a QNAP TS-409p available to users over a VPN link. How is the possible? Can someone explain what I need to do. What do I need to do at the router and what do I need to do on the QNAP NAS? Effectively, what I want do do is use the built in Windows vpn client to connect to my home network and then be able to browse the shared folders. Thanks in advance.

    Read the article

  • 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

    Read the article

  • What is the --daemon option?

    - by Pascal Dimassimo
    I was installing Solr with Jetty using these instructions. Basically, those instructions made you download the Jetty startup script and copy it to /etc/init.d/jetty. But it was not working. Each time I was starting Jetty, I had a "FAILED" message and nothing to understand why it was happening. I decided to open up the /etc/init.d/jetty script to understand what was happening. I saw that this script was using start-stop-daemon to launch jetty. After a couple of time of debugging, I discovered that removing the --daemon option at the end of the start-stop-daemon call was fixing my problem. I did a couple of research and discovered that this guy had the same problem and resolved it like I did: my removing the --daemon option. What is weird is that the switch does not seem to be specific to start-stop-daemon, because it is not documented in the man page. Also, I've seen it used for other commands. So what is that --daemon option doing? And why removing it resolved my problem? Note that I am working on Ubuntu 10.04.2 LTS.

    Read the article

  • 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!

    Read the article

  • RSync over SSH hangs and fails with timeout

    - by tx2
    Client: Gentoo, GCC 4.3.4, RSync 3.0.9 Server: Ubuntu 10.04.4 LTS, RSync 3.0.7 Client and server connectet through is Internet, about 2Mbps. Ping is ok. RSync called on any files in any direction hangs on random file, then, after timeout, fails with: [sender] io timeout after 30 seconds -- exiting rsync error: timeout in data send/receive (code 30) at io.c(140) [sender=3.0.9] [sender] _exit_cleanup(code=30, file=io.c, line=140): about to call exit(30) In 1/10 trys is pass correctly. I've tryed to add SSH options TcpRcvBufPoll=yes, KeepAlive=yes; disable and enable rsync compression -- no changes. How can i make rsync works properly?

    Read the article

  • running a web server with encrypted file system (all or part of it)

    - by Carlos
    Hi, I need a webserver (lamp) running inside a virtual machine (#1) running as a service (#2) in headless mode (#3) with part or the whole filesystem encrypted (#4). The virtual machine will be started with no user intervention and provide access to a web application for users in the host machine. Points #1,#2 and #3 are checked and proved to be working fine with Sun VirtualBox, so my question is for #4: Can I encrypt the all filesystem and still access the webserver (using a browser) or will grub ask me for a password? If encrypting the all filesystem is not an option, can I encrypt only /home and /var/www ? will apache/php be able to use files in /home or /var/www without asking for a password or mounting these partitions manually? Thanks

    Read the article

  • Moving directories full of files over the top

    - by JavaRocky
    I took a backup of a directory which has a number directories and files inside them. Recently some files have gone missing. I would like to just move over the missing files. I prefer moving files instead of just copying as space is a premium on this particular box and the files are quite large. How can i achieve this?

    Read the article

  • Free Hosting control panel

    - by John Maxim
    Hello All, I'm in the mid of researching for one of the best hosting control panels. The server I run is Ubuntu and I have some experience with ISPConfig 2 & 3. Since I haven't explored any others available, what are the recommended ones for an Ubuntu server? I asked because I find that there seems to be some disabling and modifications required for an Ubuntu server if I need to use ispconfig which causes the server to change its actual way of running. It's quite good though, but any more recommended ones ? Something more organic? which doesn't require much breaking and changing. I'm not asking for the simple one, I don't mind going extra mile to install a powerful one but just try sticking with most Ubuntu's conventions will be an ideal one for me. And of course, if there happens to be something that meets the requirement as mentioned "Ubuntu conventions" and also simple to install at the same time, that'd be a bonus. Thanks in advance.

    Read the article

  • setting up a samba PDC -error with testparm

    - by Rungano
    Hi guys I have installed a samba PDC but when I test the samba configurations file I am getting errors like these, "Invalid combination of parameters for service homes. Map system can only work if create mask includes octal 010 (S_IXGRP)." My Configuration file is as follows [homes] comment = Home Directories path = /home_srv1/%u valid users = %S read only = No create mask = 0660 directory mask = 0770 browseable = No I tried to google but with no luck, Serverfault is always my best hope. Thanks for helping out.

    Read the article

  • Puppet: is it ok to "force" certname when you expect to shuffle nodes around?

    - by Luke404
    We all know (good example on SF) that Puppet hostname detection could be... fun. At our company (and I guess we're not alone at this) we usually pre-configure servers at our offices and test them before bringing the gear to a remote datacenter and rack them. Of course the reverse dns will change when doing that, even if we don't change the actual hostname of the system. We're slowly drafting our puppet setup and I'd like to be sure those moves won't create problems. My idea is to explicitly configure the desired full FQDN of the system as certname in puppet.conf at server provision time (before the very first puppet run). My process would look something like this: basic o.s. installation basic network configuration, enough to reach the internet and resolve dns install puppet and set up certname start puppet and let him manage the whole configuration test, fix problems in config (via puppet), re-test, and so on... manually stop puppet set up new network configuration for the datacenter network move the machine to DC turn it on puppet should automatically start and keep on doing its job The process is supported by detecting the environment in puppet's manifests (eg. based on subnet, like they do at Wikimedia) and modify configuration as needed (eg. resolv.conf contents appropriate for each network). Each node's certname will never change for the whole system life cycle. Is there any problem with this approach? Could it be improved?

    Read the article

  • BIND having trouble resolving service.graphicly.com

    - by Keith Burgoyne
    Since about two weeks ago, we haven't been able to resolve service.graphicly.com: dig @192.168.0.12 service.graphicly.com ; <<>> DiG 9.3.4-P1 <<>> @192.168.0.12 service.graphicly.com ; (1 server found) ;; global options: printcmd ;; connection timed out; no servers could be reached Digging on the name servers listed for graphicly.com shows that service.graphicly.com is a CNAME to takecomicsadmin.cloudapp.net. Digging on cloudapp.net's name servers seems to fail: dig @NS1.LIVEDNS.MSFT.NET takecomicsadmin.cloudapp.net ; <<>> DiG 9.3.4-P1 <<>> @NS1.LIVEDNS.MSFT.NET takecomicsadmin.cloudapp.net ; (1 server found) ;; global options: printcmd ;; connection timed out; no servers could be reached Somehow, my home ISP's name servers can resolve service.graphicly.com without issue. Has anyone else noticed this problem? Does anyone know what the cause of this problem could be? Thanks!

    Read the article

  • QNAP (469L) with Debian: can't connect to router

    - by agtoever
    I've been running my QNAP 469L with Debian (Wheezy deb7u3) for a few months. Yesterday I upgraded the memory to 4 GB. The system boots fine, but since the upgrade, I'm not able to connect the server to my router (a TP-Link WR941ND). My configuration: The router runs a DHCP server (192.168.67.100 and up), with a preconfigured ip address for the QNAP (192.168.67.10). The router is on 192.168.67.1. As said, Debian is installed on the QNAP (which can be regarded as a normal computer). Networking hardware on the QNAP: Intel PRO/1000 Network Connection using the e1000e kernel module. This is what I have tried so far: Replace the network cable (tried 3 different cables on different router ports). Check for messages from the kernel: dmesg | grep eth. Besides the normal hardware messages I get a ADDRCONF(NETDEV_UP): eth0: link is not ready for each call to ifup. Manually restart the network sudo server networking restart Check sudo ifconfig (eth0 is up, but no ip addresses). Check the /etc/network/interfaces which has (besides the loopback device) an allow-hotplug eth0 and iface eth0 inet dhcp, which is afaik the default Debian configuration. Since the server has two ethernet ports, I checked if I'm using the right port (checked the hardware address that ifconfig reports for eth0 is the same as the hardware address that is in the preconfigured ip address for the server in the router. Do a manual sudo ifdown eth0 && sudo ifup eth0 with no results (but an extra ADDRCONF(NETDEV_UP): eth0: link is not ready in the kernel log) Do a dhcp request dhclient -v eth0: for about a minute requests are send (according to the terminal) and at the end I get a No DHCPOFFERS received. No working leases in persistent database - sleeping.. Check the router system log if DHCP requests are received. I see them for some devices (my Mac, my iPhone) but not from the QNAP. The log entry looks like: DHCPS:Recv REQUEST from 84:85:06:07:75:6A and then a DHCPS:Send ACK to 192.168.67.101. There are no records from the QNAP's hardware address. So the two error messages that I do get are: ADDRCONF(NETDEV_UP): eth0: link is not ready for every ifup and No DHCPOFFERS received. No working leases in persistent database - sleeping. for every DHCP call.

    Read the article

< Previous Page | 445 446 447 448 449 450 451 452 453 454 455 456  | Next Page >