Fedora Servers :: Setting Up Network In The Right Way + Wake On Unicast Messages?
Jul 11, 2010
I have a Fedora server at home. I don't want it to be running all the time to reduce the power usage and be more green It only works , whet it is really needed. So when it is not in use (no ssh or http connections have been active for some time), a custom python script suspends it. I have set it to wake up on unicast messages, so when somebody connects to it, the server wakes up.In Fedora 12 everything worked fine: when the server was sleeping and you connected to it using ssh or a web browser, the client waited for couple of seconds until the server was up and then connected (actually it worked even when server was turned off: the command "ssh [user]@[server]" just waited until server was booted up and then connected.)
Now I installed Fedora 13 on the server. When I try to connect to the server when it's sleeping, the client waits for some time (and server wakes up), then the connection just times out. When I try to connect again, it works. When server is up and running, I can connect to it. So when it is sleeping I have to connect twice: first to wake it up and then connect again to log in.Do you have any ideas what is causing this problem, as it is really annoying for me and I don't want to have it running all the day.Also, I have not set up the network in the best way, I think. To start the network at boot, i have put the command
Code:
ifup eth0
to /etc/rc.local.
To start the network when resurming from suspend, I have creted a script with the same command in /usr/lib64/pm-utils/sleep.d. It works, but it does not seam to be the *right* way to do this. Maybe this is also causing the first problem. So how have you managed to get a working network connection on your Fedora 13 headless server?
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Jan 26, 2016
I have set up a hdparm configuration file ( /etc/udev/rules.d/50-hdparm.rules ) with :
Code: Select allACTION=="add", SUBSYSTEM=="block", KERNEL=="sda", RUN+="/usr/bin/hdparm -B 255 -S 0 /dev/sda" .
This works correct when I power on my system, however after waking my computer from sleep mode , /dev/sda appears to operate with APM .
Is there a way I can make this setting to be persistent ,i.e. APM disabled when waking up from sleep mode?
I am running Debian Jessie x64.
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Mar 8, 2010
I'm running Ubuntu Server 9.10 and I'm looking to setup an FTP server. I have SSH running beautifully and it's accessible from any computer whether it be inside the network or coming in from the internet (provided you have the administrator username and password ). I've tried Proftpd and vsftpd and have failed miserably so far. Which FTP server application do you think I should go with and how could I go about setting it up through my SSH connection?
My current setup is this:
- Ubuntu Server 9.10 with Fixed IP of 192.168.1.100
- 500GB Hard Drive
- SDA1 = 512MB ext2 /boot
- SDA2 = 2GB swap
- SDA3 = 20GB ext4 /
- SDA5 = 438GB ext4 /home
- One User (Username = administrator)
- Full SSH Capabilities
- IP Address to DNS provided by www.dyndns.org
- WRT120N Router with Remote Access and Port 22 Open
I basically want to set up a secure FTP server that anyone on the internal network can access as well as anyone from the internet (as long as they have a username and password). I want to setup a username and password for each user so that they all have read/write access to the same folder in my /home partition (I'll call it FTPSHARE).
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Mar 31, 2010
I have a server on my home network. It's currently running a DNS server (bind9) and an HTTP caching server (squid).What I would like to do is redirect all outgoing port 80 connections to the squid server and also make the server responsible for managing DHCP on the network.
Do I just need to install a DHCP daemon on the server, disable it on the router, then set my server as the default gateway and configure iptables to route all connections like I want? Or is it more complicated than that? Also, would that mean that all communication between two computers on the network will go through the server?
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Oct 18, 2010
I have around 10 Servers.How to see Dmesg and /ver/log/messages of multiple servers from a centralized location
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Apr 18, 2011
I want to check my system general log file by the following command.
PHP Code:
It just show me only these two lines Normally every day at morning I check all system general log files and some times it is too much long that I press space bar to go my prompt.
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Mar 23, 2010
Is there anyway to tell NetworkManager to not log so many messages to the system log? There appears to be a bazillion <info> messages in the log file (/var/log/messages). It makes it hard to find any potential problem areas...
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Apr 2, 2010
I dont know were to begin to solve my problem and I have been googling for hours to get a hint without any success. I'm runnning a Counterstrike Server on my virtual openSuse server - I'm exploring so don't justify what I am hosting at the moment
I want to make it possible to gain access to the cstrike folde via a ftp login. But I really have no idea were to start. The server is also a webserver, where I can ass FTP accounts for my apache vhosts via plesk - but I dont think this is the solution of my problem, isn't it?
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Oct 7, 2010
I have a good grasp on windows server 2003 but I don?t want to pay outrageous license fees for software and services and clients. I am newish to terminal as I only know a few commands. I have no problem installing services for the server edition for 10.04. Its just understanding whats going wrong to troubleshoot. I guess there is you guys and I have good working knowledge of Cisco's IOS's so I understand things like routing tables and interfaces and such for troubleshooting.
Questions I have... Can I install the desktop version of 10.04 and just install the server services? I was looking at the server guide [URL] and would like to know if these can all be installed on the desktop edition without too much trouble. I would imagine one could just use the server edition but I would really want a graphical user environment for some of the activities, if not all that I can. This would be becuase on my skills in the CLI. I priced out a server from Dell. I fits my budget perfectly if I go the Ubuntu 10.04 route. I was wondering if anyone sees any conflicts with the hardware for the Ubuntu OS....
[Code]....
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Jun 9, 2011
Does anyone know how to go about setting up a secure IMAP email server that is able to be accessed from outside the network? Similar to how you can access your google email account from your computer using Thunderbird.
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Jan 23, 2010
I occasionally see messages in my logwatch report then cannot find the actual log entry. Is there any way I can have logwatch give a clearer report?an example:
vsftpd:
Unknown Entries:
authentication failure; logname= uid=0 euid=0 tty=ftp ruser=a-specific-user
[code]....
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Sep 14, 2010
G'day. My distro is Fedora 13. I received the above subject error message at boot. My /etc/fstab is attached as follow:
#
# /etc/fstab
# Created by anaconda on Fri Mar 5 12:44:10 2010
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
[code].....
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Feb 16, 2010
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.
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Aug 3, 2010
I'm trying to get WOL to work on my web server built on an ASUS P4A800D-X motherboard (which supports wol).I have it enabled in my BIOS and I've tried several different tools with no results, including my dd-wrt based router which has this functionality built into the firmware.All the guides I've read say it has to be enabled in the driver settings in the Windows Control panel before it will work, but I'm running Ubuntu Server 10.04.
Is there any special steps that must be taken in the OS to enable my web server to power on from the LAN? I've never used this feature before and would like to just shove my web server in a corner some where and have 100% remote control from my main PC.
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Feb 19, 2010
I am trying to figure out how if it is even possible to set up my centos server to email messages to gmail account I have tried mail -S Test account@gmail.com but every time it say in my log files that Connection refused by [127.0.0.1]
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May 17, 2011
I have try RAT (Robust Audio Tool) for testing IPv6 unicast (just RAT) and IPv6 multicast (RAT and SDR "Session Directory Tool" ). I meet the problem when testing RAT with unicast (why just two computer that can doing audio conference).
i found source of the problem from the RAT faq here: Originally Posted by the source of problem... How to multi-unicast? If you really must...
The packet reflector application that we use for debugging may also be used as a packet forwarder between multiple unicast hosts. Documentation is included in the package. This is not incorporated in the application as this mode of operation is evil and should be discouraged unless used for really small groups. Robust Audio Tool but i didn't found the file reflector.tar.gz, i try to use quagga installed from repository (to be reflector) but i don't know how to configure that software.
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Oct 2, 2010
I can't get wake up on lan (wol) to work on my network card.The strange thing is that before I had it working with the exact same hardware. But I was on Centos 5.4 then. Now I am on Centos 5.5.Am I correct in concluding that the sky2 driver does not support wake up on lan?
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May 13, 2009
We are looking at setting up an SVN or CVS repo
We were also asked to research which is the best and easiest to work with/ setup. So I came here instead of google as no doubt many have used both and have their views of whats what.
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Dec 10, 2009
I'm tring to setting up some subdomains but it won't work and I don't understand why.I've got the [URL]. Now I want to setup some subdomains for example with test.domain.de I made an entry in my http.conf which looks like this:
[Code]...
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Apr 7, 2011
I am totally new to Linux and have just installed ubuntu 10.10. After configuring the network interface via dhcp I started getting these messages that come in so frequently I can't configure anything else.
[87.186415] Stack:
Why I am getting this messages and more importantly how do I get rid of them.
The installation is on a VM on Hyper-V.
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Sep 4, 2009
I will be getting an old and decrepit laptop (the PS2 channel went out). I have decided that I would like to set it up to be an email and minor data server. The only problem exists that I have never setup a server, yet alone a linux server before.
I want the server to allow user authenticated access to a certain folder on the machine where other clients can go and copy and paste files for the data server portions and I want it to download emails from multiple domains (Gmail, a Microsoft Exchange Server, and from a private domain) and then allow other clients to log in and download those messages (I would like to keep each domain's emails separate so the client has to specify which domain's emails to download).
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Oct 25, 2009
I have a small home network running mail agents Evolution and Thunderbird, and connected to the internet via Comcast. Originally I used my campus office computer as a mail server, but encountered problmes because Comcast started blocking port 25, allegedly because of span problems. I need to change the setup on my campus office computer so it uses port 587 when functioning as an outgoing mail server.
Can anyone recommend a tutorial which tells me everything to do in order to accomplish that?
At present I'm, using Comcast's outgoing mail server, but I started having problems with sporadic blokage of outgoing mail with attachments, which Comast can't explain.
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Feb 27, 2011
I'm hoping its the right place to ask the question: I have Fedora 8 server acting as a web server. It is a VM hosted at Amazon. I'm trying to use their SES service and using their ses-send-email.pl file to send a mail.I'm getting the following error: "Can't locate Digest/SHA.pm in @INC" I tried installing the Digest-SHA module but I'm not sure how to do it. All manuals and how-to's I found looks like they are intend for development servers not production (meaning I found myself installing alot of packages not sure they are all necessary). What should I install (and how) in order to make it work?
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Mar 18, 2010
I wish to prevent the samba messages (mainly nmbd and winbindd) from appearing in the system log (/var/log/messages). I want to allow samba logging to the standard samba logfiles, but prevent the syslog getting clogged up by samba. I added syslog = 0 to smb.conf and reloaded the config but the messages were still appearing. I also tried the following (and restarted the syslog via /sbin/service syslog restart) # Suppress messages from samba.
nmbd.* /dev/null
smbd.* /dev/null
winbindd.* /dev/null
For interests sake the messages I'm getting are below (I'm not concerned about the messages themselves, I can chase them up at my leisure via the samba logs) Mar 18 09:58:29 SERVER nmbd[3808]: query_name_response: Multiple (2) responses received for a query on subnet xx.yy.z.zz for name DOMAIN<1d>. Mar 18 09:58:29 SERVER nmbd[3808]: This response was from IP xx.yy.z.zz, reporting an IP address of xx.yy.z.zz.
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Mar 2, 2010
I want to set up a cluster for scientific computing (mainly statistical stuff with R). I have a few conceptual questions. First, is there a difference between a Beowulf cluster and a cluster that has single-system image ("SSI," e.g. using openSSI or LinuxPMI)? If so, what's the difference? Second, if there is a difference between Beowulf and SSI, which one is better for scientific computing? Third, does using Eucalyptus make sense for scientific computing or is this more suitable for IO-oriented operations such as web service or databases
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May 29, 2011
I've got a situation where I would normally use NFS, but cannot. So in it's place I need to use a samba share (even though it's linux -> linux). I need it completely open and world writeable as if I had done an rw in an NFS export. I thought I had it as when logged in as a user I can edit delete etc. however the apache user seems to be struggling with creating files.
Here's my smb.conf as it stands.
Code:
[global]
workgroup = WGRP
server string = Samba Server Version %v
security = user
passdb backend = tdbsam
unix extensions = no
[tmp]
comment = Temp Directory
path = /var/tmp
public = yes
guest ok = yes
writeable = yes
browseable = yes
[sites]
comment = Sites Directory
path = /var/www/sites
public = yes
guest ok = no
write list = siteusr
writeable = yes
create mask = 0777
browseable = no
security mask = 0777
directory security mask = 0777
note that the drive is mapped as user siteusr
What I can do to open it up more?
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Aug 19, 2011
I have just been gifted with a Linux dedicated server for the next six months, with an option to renew after that time has expired, and I'd like to set it up for FTP/P2P use. I do have some familiarity with Fedora from work, but only as a pre-installed desktop OS. The company providing the server has asked me to choose a OS, so of course I picked the one with which I already have some knowledge. They've also asked me to provide partition and mount point information, and it's here that I'm having some problems. I've spent most of my free time today reading everything I could about partitioning for a server, and I'm still not comfortable making this decision on my own.
The server comes with two drives - one 500GB and one 1TB, and 8GB RAM. My thinking is to use the 500GB drive for the OS, and the 1TB for media storage. I know I still have a good bit of learning to do, but I just want to get the blasted thing set up so I can get on with the hands-on part of figuring out how it works.
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Aug 14, 2011
I have been using a private computer on my departmental network. I am now in the process of switching to the public system. This is a system of different computers, each of which mounts the same homeserver directories for users. One may login to any of these machines and see the same home directory. The department is running a clone of Red Hat Enterprise Linux called Scientific Linux. It is not a lot different from Fedora Linux.
I copied a crontab entry form my private machine and ran crontab -e on one of these computers. I suppose it will now do what needs doing, but what if I need to change the entry or add other entries. I will have to search around for the one computer on which crontab is running. Is there some global network way to do the same thing, i.e., so that I can edit the crontab entries from any machine in the public network?
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Oct 14, 2010
I have recently developed the need for having a file server and am interested in setting up my desktop as a Samba File Server. The problem is that I need to be able to access it from outside networks (physically I'm about 10 miles away from my home network),o I need to also set up some sort of DynDNS service so that I can access the server from anywhere.With this, with setting up a DynDNS, setting up Samba, and setting up my machine to be secure enough for these types of actions. (I just want to make sure it is secure enough since it will need to be detectable from the internet.)
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Apr 8, 2011
So I finally managed to get my Samba file server working () but now I have a question. On the server I have 4 folders, each being used for a certain topic. How would I set the folders as read only but not the contents, so that way remote users can read/write to the folder but can't delete or rename the folder itself? Also, if I restart the Linux box it will cease to show on the Windows Network unless I delete the Samba share and remake.
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