Ubuntu Servers :: Anyway To Control Server Remotely / Without Any Impact On Performance
Sep 4, 2010
I run a dedicated specialty Quake 3 Arena Server.It currently runs a stock Debian 5.05. These are the hardware specifications.
256mb SD Ram
10gb Hard Drive
Intel Celeron
I think I should be getting more speed then I am.I would like to install Ubuntu Server.What version is the most stable, and will provide the best speed?I have to download my server files from the internet. Is this possible without the GUI?Is there anyway to control my server remotely, without any impact on performance, VNC is a huge impact.I want to run a mail server as well, is this possible with out a performance hit?
i am wanting to install ubunru server edition on an older sony vio desktop to use as a server i can access remotely. i will be needing to however access this server remotely from a college i attend throughout parts of the year.
I'm writing you to ask some help with administrating a server remotely. I have a machine I use remotely when I have to travel, some time for quite long periods like from one to three months. Last time it happened to me that after upgrading I send the reboot command and the machine didn't turn down, so I couldn't be able to access it. My question is: how can I avoid such situations? Is there any best practice to follow?
I'm getting ready to deploy a Ubuntu server in a remote location. I am deathly afraid of something going horribly wrong though, so what I'd like to do is be able to somehow image the system when it's working, and be able to restore that remotely via SSH if things go to hell. My first thoughts were that I could partition the hard drive, and install two separate instances of Ubuntu. One would be the server in it's working state, and the other one would be a separate instance of Ubuntu that I could boot into to restore an image (if that's possible).
1. If I had two separate instances of Ubuntu on two separate partitions, and I was currently booted into one of them, would it be possible to tell the Ubuntu server to reboot and boot into the other instance of Ubuntu on the other partition over SSH? (SSH is the only form of access I will have to the server)
2. Is there a better way to remotely restore a server than what I outlined above?
3. Also, I've used the dd command to make backups before, but it copies an entire hard drive byte for byte. Is there an argument I can tag on, or another command to use altogether that will only copy the bits that are being used?
My server has been the repeated victim of bandwidth attacks: any large file on the server is downloaded repeatedly, with the goal of pushing the server over the provider's bandwidth limit. How can I lessen the effect of these kinds of attacks with IPTables or APF? For example, can I set the server to: Is this possible? Is there a more effective way, and can a firewall even do this? My web server is Lighttpd, perhaps I can place such a rule directly in its config?
I set all of my family members up with Linux Mint so that their computers would stop punching themselves in the face, but I'd like to be able to control those computers when my mom calls up and wants to know how to "put her favorites in the drop box." I've got Parallels with WinXP, and Ubunutu VMs, so my OS isn't really a concern (although I'd prefer to use OS X if there was a slick GUI app). What's the best or most practical approach to getting access to these computers from across the country?
how you remotely enter another computer and take control of it. (with or without the owners permission) the reason is because my grandparents are constantly having problems with their comps(reasons for the admins
It stores all my important stuff, as well as some music and movies.I use a second linux box in my living room to "stream" content via NFS or SAMBA share.The streaming tends to stop several times during playback, and needs to fill up its buffer again before continuing to play.I also have some Windows XP and 7 based computers that connect to this file server.I have noticed that directory listing is VERY slow, and there is a huge lag when I want to save/read a file from/to my home directory.
This is my setup:Ubuntu Server 10.10 64 bit (I have the same problem with 32bit ubuntu) 3 RAID5 arrays with 4 hard drives eachLVM on top of the 3 raid5 arrays.The Logical Volume i use is about 6.5TB, and I use the ReiserFS file systemThis LVM has grown over the years, and has had som replaced disks. So I have used the pvmove, and extend commands a bit.I have tried using IOTop and top to check if there is not enough resources available, but that doens't seem to be the problem.I haven't been able to find out why streaming over the network stops, but I know it is the server that causes the problem.Does ReiserFS have any performance problems with large logical volumes? Would changing to EXT4 or some other FS give any performance gain?
I have a java application running under Linux (Suse). My application communicates with a windows service via TCP/IP. I had multiple cases where the windows service crashed and I'm wondering if in such case there is any Linux or java tool I could use to remotely restart this Windows service.
I have won my fight and my father in law accepted to give gnu/linux a try as his server and to run on the computer of the new company he is starting. One feature he would like is to be able to access his work desktop (graphicaly) from home. On my side, I would like to be able to control his desktop from home if I need to show him things. I already can SSH in terminal to install and maintain stuff but, to move the mouse around and point him where to click or what to use would be invaluable.
I have never tried to do anything 'remotely'.My 87 year old uncle lives in British Columbia, Canada and I live in Quebec, Canada.Here is what I would like to try to do:
I would like to connect to his PC from my PC and then set up a Gmail email account for him. I think that I am saying that I would like to be 'as if' I were sitting in front of his PC at his house.If this is possible, what software do I need on my Slackware PC to connect to his Windows PC? What software does he need on his PC?
If this gets moved I apologize for putting it in the wrong place...Purpose of server: RED GREEN ROUTER for SOHO or PARENTAL CONTROL Block known bad URL,IP... ie porn, malware, ads, others Block Good URL,IP if Desired by OWNER Scan mail protocols for viruses out and in if out is found log and mail MASTEROSSIBILTY??? scan all protocols in and out for viruses n block log out block log and mail MASTER a server build log and possibly a step by step assist for new users.Version of ubuntu server 10.04Hardware Gateway Pentium 4 2 network cardsUse of server RED GREEN ROUTER FIREWALL that blocks site list from shalla and my own list. general use would be for SOHO or Parental controlpick language...pick it again???...country...no...country for kb...kb layout...eth0(as RED)me it...timezone...HDD choice(i used guided-use entire disk)...user...proxy if needed(not for RED GREEN ROUTER!!!)...updates(i picked auto)...LAMP,openssh, mail server ...sqlpassword...grub...done
then login as user/pass created in install run following
I have ubuntu based web server running in home which I use for varying purposes. Now I have ran to situation that I would like ton set "access control" for my server so that on main page user can login and then he/she sees that what sites on server he can access.
Basically this would be simple to do with .htaccess protection, but it would be per directory solution and this is not so easy to manage. However what I wish to get done here is that there would be access control check and an login prompt on webserver document root which would require to authenticate if heading to non public section of webserver.
currently I got my server root like this /var/www (server root, no website and here would come access control point) /var/www/site1 (primary website on my server to where most of visitors are going to) /var/www/site2 (secondary site for specific things on my server) /var/www/directory1/site3 (site which I do wish to have for closed group only) /var/www/directory2/site4 (my online education and studying portal which I wish to control)
And I would want to allow everyone to access site1 and site2 without any restriction
Now what kind of solution would work here ? I am not sure and I don't have full techical knowledge of making this reality, There probably is multiple ways to do this and one could be .htaccess control, however what I wish to have is an easy to manage system which is also expandable.
I have made a virtual machine on my server using virt-manager that I access using virt-viewer from my desktop/laptop. Currently I am having to leave the VM on all the time. Which is a waste of cpu/ram etc. Ideally I would like to be able to wake the vm up from virt-viewer or from a bash script being ran on my desktop.
Is there any web interface that I can install to remotely reboot ubuntu? It would only be accessible via a VPN or on the LAN so not too much worry over security.
I recently set up a computer running Ubuntu 9.10 Desktop for use as a server, and successfully have it hosting game servers.I'm relatively new to Ubuntu, so I'm not sure how to go about this, but ideally I would like a user to be able to access a single folder on the server over the internet, and be able to upload and download files from it.It would be nice to set up multiple folders like this, so different people would have access to their own personal folder, but not anyone else's.
One server is a dedicated MySQL server. After upgrading that one to Ubuntu 10.04 (from an ancient Suse 9.2), both servers are running Ubuntu 10.04 LTS.I have another server that I use to administer the database server via phpMyAdmin. However since the upgrade it is not able to connect. I get an error #1130 Cannot log in to the MySQL server. The same happens if I try to connect remotely from the command line with: mysql -u root -h 129.79.137.121 -pI'm not sure if this is an iptables/ports problem or a configuration problem on the MySQL end or something else entirely.I've searched and tried the suggestions I've found in various places but none seems to have fixed it.
I came back to see on the screen a message requesting remote desktop control. So I said no and went into remote desktop and said never allow connection. I had recently hosted a PHP app on the home pc for testing purposes using apache. Here are some of the last logs entries:
System hostname Server Operating system Ubuntu Linux 11.04 Webmin version 1.550 Time on system Fri Jul 22 09:23:44 2011 Kernel and CPU Linux 2.6.38-10-generic on i686 Processor information Genuine Intel(R) CPU 2160 @ 1.80GHz, 2 cores
Every couple of hours I am unable to ssh or vnc in to my system or anything else. I can remote into another PC on my LAN and everything works fine. The only things that fixes the problem is restarting the system. Could someone point me in the right dirrection to start trouble shooting this problem? I am still learning where all the log files are and I am generally new to linux
I'm still pretty new to servers and ubuntu and have ran into something I could see being a problem in the future. On a dedicated remote server I have installed a web server using the "How To Forge - Perfect server set up for ubuntu 10.04 and ispconfig". I have a forum and email up and running and shoutcast radio and teamspeak3 servers also. We can also nx into it if need be. I can reformat the 1T hdd remotely from my provider control panel and ssh is installed at the same time and a new root password is sent via email. The thing is I now realise that by default the file system is written to a 10gig partition.
This might usually be ok but ispconfig uses the /var/www folder on the file system to house the forum I host and the partition is filling up. My mate I co rent with is talking about starting a parrot/bird owners forum and i might eventually like to have a gaming forum as well. I realise I should probably have set things up differently but like I said I am new at all this and tbh the home directories never going to have much in it so theres 900 gig doing nothing. So my question is can I use anything to enlarge that partition remotely? I know theres gparted on disc and all the articles I found say I need to use a disc which obviously is out of the question.
So what I think I need is some sort of partition magic for ubuntu. I would really like to expand it so all my current files etc on it would stay as is. I'm also currently looking into back up methods and wondered if that would be the way to go? Back up my file system and home directories and then reformat and make the partition larger? Or could I copy the entire www folder to a newly created folder in /home and re write the site enabled files to point to it? Would this work and if so what else would I need to edit?
I keep getting this error trying to connect to newly installed postgres server on Amazon EC2 running Ubuntu Maverick Meerkat.... Could not connect to server: Operation timed out Is the server running on host "....ap-southeast-1.compute.amazonaws.com" and accepting TCP/IP connections on port 5432?
I've updated config files, as follows... pg_hba.conf added host all all 124.168.242.0/24 trust where 124.168.242.0 is the IP range of my ISP postgresql.conf listen_addresses = '*' port = 5432 I am attempting to connect with pgAdmin 3 client. I don't think the problem is the client.
I am trying to connect to serial console, local one, just to verify than it works, is is possible?Well, I configure serial console
Code:
# ttyS0 - getty # # This service maintains a getty on ttyS0 from the point the system is # started until it is shut down again.
[code]...
It is started, now I am trying to connect to the console via minicom, is it possible from machine where the console is running?If not, how could I check it remotely?
I have a server provided dns and sendmail service, dns keeping record for my public servers. I don't want my server to be open dns server, so I just add recursion and forwarders option to named.conf, like: allow-recursion {192.168.x.x/24; 123.123.x.x/28; 127.0.0.0/8;}; forwarders {publicDNSipA; publicDNSipB;}; After restart named, all sendmail user can't mail to other internet account (like xxxxx@gmail.com); but local account is ok
I recently installed a new home backup server with Ubuntu 9.10 x86_64 using the alternate CD. I used the CD's installer to partition my disk and created a software RAID 5 array on 4 disks with no spares. The root file system is located outside the raid array.
At first the array performed nicely but as it started to fill up, the io performance dropped significantly to the point where I get a transfer rate of 1-2MB/s when writing!
Recently set up a webserver at Linode. I've been reading alot about tuning the mysql, but other than hitting web pages and seeing how fast they load, how do I tell how well my tuning is working?
how do you measure performance on a computer?I know there are benchmark sites, they do give a general guidance in selection. However, I want to learn how to build a cluster from commodity parts and want to make sure it is equivalent to a specific server in performance.I know clustering is a bit abstract and it will be difficult to measure direct performance and compare it to one specific board. I am fine with that
my question is according to google search I need to umount the filesystem point in order to reduce its size.... so it means I will require that nobody uses the system? since /var logs a lot information?
I also have the option to reduce /root but I think is more complicated.
so what are the precautions in order to reduce /var/?
I am running NFS and NIS servers in my FC8. Clients are also running FC8. Everything was working fine. I could login remotely to server as well as clients. Suddenly (few days ago) a problem started. I can not login remotely to client machines. I did not do anything. I can login to server remotely, but not the client. When I try to login, it accept password and nothing happens. Also, when I try to login from server to client same thing happens. We share the home directory of the server with client. Another question: there two type of nfs server nfs-user-server and nfs-kernel-server. I just use gui to set up the NFS. I don't know which one I am running. Is there any way to find out which nfs I am running?
