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  • How to enable ufw firewall to allow icmp response?

    - by Jeremy Hajek
    I have a series of Ubuntu 10.04 servers and each one has ufw firewall enabled. I have allowed port 22 (for SSH) and 80 (if it's a webserver). My question is that I am trying to enable icmp echo response (ping reply). ICMP functions differently than other protocols--I know it is below the IP level in a technical sense. You can just type sudo ufw allow 22, but you cannot type sudo ufw allow icmp How should attack this problem?

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  • How does juju expose work?

    - by user84471
    If I expose my service, for instance teamspeak server, on what address it will be running? On my server address? For example: my server has an address of 158.37.15.167. If I deploy teamspeak from my local network (10.0.0.0) connected to the server, how will it be seen in the 158.37.15.167 network? When I run juju status I get this: public-address: nodeTWO.localdomain instead of an IP address. My juju status: http://pastebin.com/z99Bhx9G

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  • Le botnet Waledac pourrait faire son retour selon plusieurs chercheurs en sécurité informatique

    Le botnet Waledac pourrait faire son retour Selon plusieurs chercheurs en sécurité informatique Le botnet Waledac, stoppé l'an dernier par Microsoft grâce à une procédure judiciaire, serait sur le point de faire son retour selon plusieurs chercheurs en sécurité informatique. Pour mémoire, Waledac est un botnet qui avait été capable d'envoyer près de 1,5 milliards de spams par jour, depuis plus de 64 000 adresses IP uniques infectées. Le service de messagerie de Microsoft Hotmail est celui qui avait été le plus touché par le malware. Grace à

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  • Unable to install openjdk7 from terminal [closed]

    - by Adil
    Possible Duplicate: How can I fix a 404 Error using a PPA? Update manager generates 404 error while attempting update. Will not update When i tried to install jdk from following command: sudo apt-get install openjdk-7-jdk Following error was displayed: Err http://us.archive.ubuntu.com/ubuntu/ precise-updates/universe openjdk-7-jre-lib all 7u7-2.3.2-1ubuntu0.12.04.1 404 Not Found [IP: 91.189.91.15 80] E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

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  • Share USB devices between 32 bit and 64 bit systems

    - by Sreejith S
    The latest version of USBDeviceShare, the USB over IP software, supports sharing USB devices between 32 bit and 64 bit editions of Windows. A USB device plugged in to a 64 bit PC running 64 bit version of Windows can be shared and remotely accessed from a 32 bit PC and vice versa. Download USBDeviceShare USB over Network software from http://www.sysnucleus.com/usbshare/usbshare_download.html Keywords : USB over Ethernet, USB Server, Remote USB Access, Share USB

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  • Alternatives to time tracking methodologies [closed]

    - by Brandon Wamboldt
    Question first: What are some feasible alternatives to time tracking for employees in a web/software development company, and why are they better options Explanation: I work at a company where we work like this. Everybody is paid salary. We have 3 types of work, Contract, Adhoc and Internal (Non billable). Adhoc is just small changes that take a few hours and we just bill the client at the end of the month. Contracts are signed and we have this big long process, the usual. We figure out how much to charge by getting an estimation of the time involved (From the design and the developers), multiplying it by our hourly rate and that's it. So say we estimate 50 hours for a website. We have time tracking software and have to record the time in 15 we spend on it (7:00 to 7:15 for example), the project name, and give it some comments. Now if we go over the 50 hours, we are both losing money and are inefficient. Now that I've explained how the system works, my question is how else can it be done if a better method exists (Which I'm sure one must). Nobody here likes the current system, we just can't find an alternative. I'd be more than willing to work after hours longer hours on a project to get it done in time, but I'm much inclined to do so with the current system. I'd love to be able to sum up (Or link) to this post for my manager to show them why we should use abc system instead of this system.

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  • Operation times out trying to SSH outside LAN i.e. from internet to LAN no connection is established

    - by Pelle L
    I run Ubuntu 12.04 and have no success connecting with SSH from "Internet". The router is a TL-MR3420 which is set up to forward requests to one of the NIC's on ubuntu machine (which has in total 3 NICs). I can SSH from a client on the "local" network/LAN. The forward mechanism in the router seems to work. If I stop SSH service on the Ubuntu machine and instead start one on the windows machine - it works like a charm. I do not use the Std port 22 but that shouldn't be an issue as far as I understand - sine it works on the same port on the win machine. Since my public IS isn't static I use a dynDNS service but as said earlier the same setup works from the win machine. The router is located on 192.168.0.1 The Ubuntu NICs has the following IP: eth2 192.168.0.100 , eth1 192.168.0.101 , eth0 192.168.0.102 and I have forwarded the "outside" request to 192.168.0.100 In regards for firewall settings on the Ubuntu machine I have disabled the ufw and the command ufw status give status: inactive. I don't now it this is relevant information but teh command iptables --list give: Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination I have tried to catch traffic with help of wireshark (a tool I'm not too used to use) and it seems as a few (3?) "requests" actually reaches the NIC but ... nothing happens. The syslog does not show any entries during these attempts. Perhaps it could be some routing issues but I have reached my level of competence and are stuck ... all help and support to get this sorted out is much appreciated. I'm new to Linux so please do not assume I have a configuration that is correct - but as I wrote earlier - if the client that initiate SSH is on the LAN it all works. PS:I have also tried to get VPN (PPP) working from Internet with no success - once again VPN works on the windows machine ... so my best guess is that this is related to how the ubuntu machine handles (IP) traffic and not the TL-MR3420 router or other network issues.

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  • alias/function with command line arguments

    - by Agzam
    I'm tired of typing manage.py startserver 10.211.55.4:4000, so decided to make an alias for that. Only thing is: the port sometime changes. So I did this in bash profile: function runserver() { python manage.py runserver 10.211.55.4:$1 } But then when I call it: runserver 3000, it starts it, but immediately stops saying: "Error: That IP address can't be assigned-to". However if I type the same thing right into command line it works with no complains.

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  • Ubuntu 12.04 - PPTP VPN is the only Internet Access

    - by user212553
    I know this has been covered. I've read dozens of posts but still have questions. I have a work server whose traffic should never leave my house without encryption. The VPN is PPTP. Currently I have a cron job that checks the status of the ppp0 adapter each minute. If the connection drops, which it does fairly often, it shuts key components down. It's fairly easy to restart PPTP with "nmcli con up id 'myVPNServer'" but there's no assurance it will reconnect and I need a better way to stop traffic (other than killing apps) when ppp0 is down. The two options I've seen discussed are the firewall (UFW, Firestarter, IPTables) or the route tables. I could be easily swayed to consider the firewall option but I focused on the route tables since no new function needs to be started. My questions involve the way the route tables change and then specifics on rules. When I start the PPTP VPN the route tables change. That suggests that if the VPN drops, the table will change back, defeating my stated intent of preventing external traffic. How can I make "sticky" changes to the route table that will persist even if the VPN connection drops? Perhaps the check boxes "Ignore automatically obtained routes" or "Use this connection only for resources on it's network" (which are part of the VPN configuration options)? It would seem that, if I can force the active VPN route table to stay in effect, even when the VPN drops, that this will effectively kill any external traffic should the VPN drop. This will give me the latitude to run a routine to restart the VPN from the command line (assuming the route table rules don't prevent me re-establishing the connection). My route table, with the VPN active is (ip route list): Any comments on what 10.10.1.1 is? $ ip route list default dev ppp0 proto static 10.10.1.1 dev ppp0 proto kernel scope link src 10.10.1.11 VPN_Server_IP_Address via 192.168.1.1 dev eth0 proto static VPN_Server_IP_Address via 192.168.1.1 dev eth0 src 192.168.1.60 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.60 metric 1

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  • How to suspend a user from coming back on my website and register again? any ideas? [closed]

    - by ahmed amro
    i am an outsourcing person not a programmer and i am working on shopping website like ebay , so my question might be beginner for everyone.my website will need a user suspension in case he violates the terms and conditions. here is some thoughts on my mind: -IP address tracking -User information ( email address or any information are going to be repeated on second time of registration after suspension) -session Id cookies are also a way to identify the users after log in any more creative suggested ideas to avoid fraud and scammers, it it possible to make 100% impossible to avoid those bad users from coming back ?

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  • My VPS was wiped, can I still access it?

    - by Lucas806
    Someone gained access into my Ubuntu VPS via SSH, they entered rm -Rf / which wiped it and now I can't access it via SSH or SFTP. On SFTP I get the the following error: Error: Connection timed out Error: Could not connect to server And then on SSH, I try to connect to my VPS IP on Port 22, it doesn't come up with anything for ages (it should come up asking for a username) and then a op-up appears saying: Network Error: Connection timed out. Is it possible to fix this, if so, how?

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  • juju bootstrap error no default environment found

    - by Khun Aung
    Everytime i type juju bootstrap .Error no default environment found keeps showing up. i was trying to configure maas. Please help me. I'm new! this is my envronments.yaml juju: environments environments: maas: type: maas maas-server: 'http://{my ip address}:80/MAAS' maas-oauth: 'c2cg7hTpzFuRmJjrBC:YH2ZEXVRKL46ttaDmq:beKeBjhYgWyxKk2gqqwaCx97xnmp4LJu' admin-secret: 'nothing' default-series: 'precise'

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  • Tablet PC : HP dévoile encore un peu plus son Slate pour tenter de détourner l'attention de l'iPad,

    Mise à jour du 06/04/10 TabletPC : HP dévoile encore un peu plus son Slate Pour tenter de détourner l'attention de l'iPad, en vain Alors que le lancement de l'iPad semble se révéler globalement positif, HP tente (désespérément) de détourner l'attention des observateurs pour que ceux-ci n'oublient pas qu'une autre tablette existe : le Slate. Ou plus exactement existera puisque le Slate n'est encore qu'un prototype. Dans une vidéo qui sort donc la même semaine que l'iP...

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  • Forwarding naked domain to www [duplicate]

    - by mravec
    This question already has an answer here: Why is www. working but no-www is not? 1 answer I successfully mapped my www.mydomain.com to my Google site (as described here). However I would like to forward also my naked domain (mydomain.com) to end up in www.mydomain.com. I assume I should modify 'A' DNS record in my provider but what IP should I point it to?

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  • 139 updates wont update

    - by amnesia
    I cant seem to update the 139 files I need too. It is saying I am not connected to the internet yet I am typing this to you on the same computer?? I have deleted most of the errors as it shows the same IP all the time and I am not sure if that is mine or not ANy ideas would be greatly appreciated Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/i/icedtea-web/icedtea-netx-common_1.2-2ubuntu1.2_all.deb 404 Not Found

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  • Redirect subdomain to local pc

    - by user1188570
    I have a home webserver which is constatly running. Is it possible to create a subdomain which would redirect traffic to another local pc? For example I have 1 Server and one notebook(with webserver installed for developing) Now I can access to notebook only from local network with IP. Server is also hosting domain example.com. Now I would like to visit laptop.example.com, which would be my laptop.

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  • remote control android, a reverse ssh tunnel

    <b>Handle With Linux:</b> "Reasons for using a reverse shell include: you can bypass firewalls, you can connect to your phone without knowing the ip, the connection is initiated from the phone so you don't need to have a ssh server listening on your phone. Just think of all the fun this makes possible!"

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  • Why is user "lightdm" trying to log into my SBS 2003?

    - by user652740
    I have 7 Ubuntu desktops connected to a SBS 2003 using Centrify. I have a rather weird scenario, whereby a user with the name lightdm is trying to log into our server, possibly automatically. I thought lightdm was the session manager, not a user? Does anybody know what could be causing this? There is no user: "lightdm" on the server and the problem only comes from one of the 7 internal desktops connected to the server (its IP address is in the local network).

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  • Fonality: Goodbye Open Source, Hello Cloud

    <b>The VAR Guy:</b> "The company previously positioned itself as an open source IP PBX phone system provider. But going forward, Fonality is pitching itself as a leading provider of cloud-based phone systems and unified communications for small business."

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  • My Ubuntu VPS was wiped

    - by Lucas806
    Someone gained access into my Ubuntu VPS via SSH, they entered rm -Rf / which wiped it and now I can't access it via SSH or SFTP. On SFTP I get the the following error: Error: Connection timed out Error: Could not connect to server And then on SSH, I try to connect to my VPS IP on Port 22, it doesn't come up with anything for ages (it should come up asking for a username) and then a op-up appears saying: Network Error: Connection timed out. Is it possible to fix this, if so, how?

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  • Making Sense of DNS

    <b>Begin Linux:</b> "Domain Name Service (DNS) was created in 1983 out of the necessity to convert IP Addresses like 192.168.9.2 to domain names like example.com. DNS is a distributed database, what this means is that no one computer is used to maintain a complete database of all of the domains on the Internet. Instead this information is distributed across many computers."

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  • Part Played by SEO in Success of a Business

    With the advent of the internet, a number of websites have been established. What is a website? As per its definition, website is nothing but collection of web pages, images, videos with a common domain name or IP address in an internet protocol based network.

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  • What is SEO Hosting All About?

    Once again and without fail, there has been a new addition to the world of internet marketing. This time around, Hosting is the new predecessor that has proven to be the next big thing for internet marketers to look into. To be more specific, SEO Hosting has proven to be the most influential strategy in this regard where hosting companies offer their clients with cheap Multiple C Class IP Hosting so that they can dominate the search engine placements.

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