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  • After upgrade to Lucid, computer doesn't respond to clicks or pressed keys until X restart

    - by Victor Stanciu
    I upgraded to Lucid today, and after the update the display is "frozen". I can move the cursor, but I cannot click on anything, nor does it respond to any keys. The only way to fix it is to SSH into the machine (which, by the way, works just fine), and kill and start X. Then I'm taken back to the login screen and everything works. This happens every time I boot. Let me know if there are more details that I can provide.

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  • Computer name not appearing on network

    - by stib
    I can connect to other computers on my home network (ubuntu + OSX machines) using the IP address, but I can't connect using the netbios name. On the mac the name appears in Finder but if I try to connect (goconnect to server smb://[email protected]) it doesn't work, while smb://[email protected] does. Same with ssh, ping and afp between the macs. This is a intermittent problem. It has worked in the past.

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  • dig @my-server-ip mydomain.com works from inside, not from outside?

    - by x4954
    My server has 2 ips: x.x.x.73 and x.x.x.248. I can access my site via these ips, using Web browser. {Now, from a CentOS machine (not my server), using terminal} If I: dig @x.x.x.73 mydomain.com dig @x.x.x.248 mydomain.com I get the result: Connection timed out; no server could be reached. Could somebody please tell me how to fix it? Thank you. More information: If I log in to my server using ssh and do: dig @x.x.x.73 mydomain.com dig @x.x.x.248 mydomain.com I can see my zone shown as expected: ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5_7.1 <<>> @x.x.x.73 mydomain.com ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12757 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;mydomain.com. IN A ;; ANSWER SECTION: mydomain.com. 38400 IN A x.x.x.73 mydomain.com. 38400 IN A x.x.x.248 ;; AUTHORITY SECTION: mydomain.com. 38400 IN NS ns2.mydomain.com. mydomain.com. 38400 IN NS ns1.mydomain.com. ;; ADDITIONAL SECTION: ns1.mydomain.com. 38400 IN A x.x.x.73 ns2.mydomain.com. 38400 IN A x.x.x.248 ;; Query time: 20 msec ;; SERVER: x.x.x.73#53(x.x.x.73) ;; WHEN: Sun Jan 15 11:46:30 2012 ;; MSG SIZE rcvd: 129 BIND version 9.3.6, Centos 5. Logging to my server using ssh, do inga "dig google.com" also shows expected results.

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  • How to I alias a hostname?

    - by Jonas Byström
    Is it possible to keep a network alias - without specifying the IP address in the hosts file? For instance, I have abcd.efgh.com but want abcd -> abcd.efgh.com so that ping and ssh work as they normally would. I want it to work with dynamic IP on abcd.efgh.com, that's why I don't want to state the IP address explicitly.

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  • Mass Port Forwarding?

    - by Devoted
    Hi I had trouble but I finally port forwarded 21-23 and thus got SSH working on my Ubuntu machine. If I want to do other things with it such as FTP, should I just port forward 1-10000 so I don't have to worry about port forwarding each individual port? What are the advantages/disadvantages of this?

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  • How to allow unprivileged apache/PHP to do a root task (CentOS)

    - by Chris
    I am setting up a sort of personal dropbox for our customers on a CentOS 6.3 machine. The server will be accessible thru SFTP and a proprietary http service base on PHP. This machine will be in our DMZ so it has to be secure. Because of this I have apache running as an unprivileged user, hardened the security on apache, the OS, PHP, applied a lot of filtering in iptables and applied some restrictive TCP Wrappers. Now you might have suspected this one was coming, SELinux is also set to enforcing. I'm setting up PAM to use MySQL so my users in the web application can login. These users will all be in a group that can use SSH only for SFTP and users will be chrooted to their own 'home' folder. To allow this SELinux wants the folders to have the user_home_t tag. Also the parent directory needs to be writable by root only. If these restrictions are not met SELinux will kill the SSH pipe immediately. The files that need to be accessible thru both http and SFTP so I have made a SELinux module to allow Apache to search/attr/read/write etc. to directories with the user_home_dir_t tag. As sftp users are stored in MySQL I want to setup their home dirs upon user creation. This is a problem since Apache has no write access to the /home dir, it's only writable by root since it's required to keep SELinux and OpenSSH happy. Basically I need to let Apache do only a few tasks as root and only within /home. So I need to somehow elevate the privileges temporarily or let root do these tasks for apache instead. What I need to have apache do with root privileges is the following. mkdir /home/userdir/ mkdir /home/userdir/userdir chmod -R 0755 /home/userdir umask 011 /home/userdir/userdir chcon -R -t user_home_t /home/userdir chown -R user:sftp_admin /home/userdir/userdir chmod 2770 /home/userdir/userdir This would create a home for the user, now I have an idea that might work, cron. That would mean the server needs to check for users that have no home every minute, then when creating users the interface would freeze for an average of 30 seconds before the account creation can be confirmed which I do not prefer. Does anybody know if something can be done with sudoers? Or any other idea's are welcome... Thanks for your time!

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  • Security: Managing network shares remotely on Ubuntu?

    - by Industrial
    Hi everyone, I am about to setup a home network server running Ubuntu Server and I'm currently a bit worried about how to handle network shares and permissions in a good way. After working a bit lately with Netgears ReadyNAS's units, I have become really spoiled with how easy it was to set up network shares and giving a specific user different levels of network access to a specific share (forbidden access, read, read/write). How would I accomplish the same with my Ubuntu server through SSH? Thanks a lot

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  • Redirect all outgoing traffic on port 80 to a different IP on the same server

    - by Spacedust
    I have multiple IP addresses on the same server and I would like to redirect all outgoing traffic on port 80 to a different IP on the same server just no to use always main IP. Currently I'm using this: /sbin/iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source IP; and it works well, but it redirects everything and when I make backups over SSH backup it's failing. System: CentOS 5.8 64-bit

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  • Easy way to deploy PHP sites from git

    - by Leopd
    I'm looking for recommendations on how to automate / simplify deployment from a git repository (github) to a hosting service. The hosting service supports FTP (yuck) / SSH / SFTP access. Any good tools out there to give push-button deployment of new revisions? I know it's not a hard script to write, but when you start thinking about things like roll-back and multiple sites, it gets complicated enough that I'd rather not re-invent the wheel.

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  • Change default root user with a new one on Ubuntu Server

    - by MultiformeIngegno
    I have a VPS, until now I used the default root user for SSH access and everything. For security reasons I'd like to use a different user for root, terminal access and sudo operations. So I created another user, gave him the sudo and every other perm. The problem is that all the system files belongs to root. What happens if I set PermitRootLogin No for root? Those files wouldn't be editable by the new root user!

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  • How to save IP or machines in Putty

    - by Mirage
    I use putty to use ssh to servers. I have different servers and usernames /passwords. Is there any option in putty to save different profiles or ipaddress so that i can click on that it automatically goes to that ip address. i need to change ip address evrytime or if there is any easy alternative for putty with all guis

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  • prevent cpanel/whm from automatically updating php

    - by j w
    I'd like to be sure that cpanel/WHM is definitely NOT going to automatically update my PHP to 5.3 (it will cause all sorts of errors for legacy code). So, please let me know where I should look (either in WHM control panel or via SSH) in order to satisfy myself that PHP definitely won't get upgraded to 5.3 without my say-so?

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  • How to configure mercurial access controls using apache and hgweb?

    - by Gj1
    I have set up a mercurial repo to be served using apache+wsgi+hgweb on OS X. It is now completely open to anyone who stumbles upon my server on the correct port number.. How can I set it up so that only people with a username+password pair that I approve can pull and/or push from the repo? I know how to very easily achieve this using ssh, but in this specific case the requirement is that the solution doesn't require defining full fledged user accounts on the machine for each person whom I'd like to give access to the repo.

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  • iptables - Allowing Established Sessions?

    - by Sandro Dzneladze
    I'm learning how to use iptables on ubuntu server. Can you please explain to me what "Allowing Established Sessions" means and why should I include it in rules? sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT I understand concept of allowing specific ports and blocking others sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT block all sudo iptables -A INPUT -j DROP But I don't get the concept of allowing established session. Thanks. S.

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  • How can I put together services bettwen differents servers?

    - by poz2k4444
    For a schoolar project, I have to run differents services in a lab enviroment where I'll have 6 computers working as servers, what services can I put together, and what cannot be, in order to prevent security risks, and considereiting that if one service goes down, affects less possible the function of the server farm, the services are: MySql Http for intranet Https DHCP IPP SMTP LDAP VPN SSH NTP DNS NFS I'll use linux

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  • isa 2006 blocks outgoing traffic with no rule specified

    - by codesnik
    I've created a rule near the top, allowing all outgoing traffic from "All Users" from specified IP range to external network. However, connections are blocked sometimes for no apparent reason. For example, one attempt to ssh to an external server would fail, and another immediatelly after that - won't. to the same server! logging shows thoose failed connections as denied, but "rule" column is blank. any suggestions?

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  • Assist me access my firewall using ASDM

    - by ghp
    Have configured my asa 5520 with all the interfaces inside -- 10.11.12.1 outside - 70.71.72.4 Have not connected the management interface ..left it as is. Im remotely accessing this firewall from a different location by SSH, but would like to use the asdm to access it remotely. I have configured the HTTP SERVER enable and assigned http 10.11.12.254 255.255.255.255 inside Please can someone let me know the config which can help me access this firewall using ASDM.

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