i am writing a script to know the status of the server whether it is accessable or not. i use ping. But sometimes the server is pingable but the SSH didnt work., is there any way so that i can check if the SSH (port 22) is working or not after ping that server.
View 1 RepliesI have installed a Netgear WG111v3 wireless USB networking adapter on an OpenSUSE 11.3 system. I'm using ndiswrapper to run the Windows driver. Using the "Network Settings" GNOME applet (says "Network Settings - YaST" in the title bar) it shows that I have the adapter installed as wlan0, but it's not connected. However, if I go to the "Network Tools" applet (says "Devices - Network Tools" in the title bar) and select "Wireless Interface (wlan0)" from the drop-down, it says that I have an IPv4 address of 192.168.1.104. This is a plausible address that my router could have served. However, I cannot use the network interface from the box itself.
View 2 Replies View RelatedI am able to ping my hostname of sinbad only from the linux system itself. On all my windows boxes, I am not able to ping it. I can only ping the IP address.
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On every machine that SSHes in, the connection gets dropped randomly between immediately, and 30 minutes into the session, while the user is actively using the remote system (typing, etc). Before, during and after the disconnection, the system responds to pings regularly (0% packet loss).It takes about 5-10 minutes before I can make an SSH connection again.I have tried restarting SSH on the server and rebooting the server. I even removed and reinstalled sshd and it is still happening.What might be causing these random disconnects and how might I solve this?
View 1 Replies View RelatedDoes a network install assign a pingable ip during installation? I am trying to verify why I get an error during installation that "stage2.img" cannot be found and I'm guessing that since I can *not* ping the static IP I assigned, that the network functionality is not working during the install process. Can anyone confirm if I should be able to ping a system during installation using the assigned static IP?
View 1 Replies View RelatedI submitted this subject in Linux kernal forum but there was not any helpful answer so I did that again here in this forum
first, let me tell you my board information
3.6.31-rc3-olimex ,,, it uses debian
board ATMEL SAM9-L9260
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I have a Fedora core 3 box that I am trying to use to replace my current document server. This box was part of a domain at a different location previously. At this location we use a "work group" network. I have set the IP, Gateway, Subnet, and DNS servers. I can see the machine from my XP machine, but cannot get a connection to the internet?
View 2 Replies View RelatedI've two internet based server ( xx.xx.xx.xx and yy.yy.yy.yy ) The Y server is running VNC server and is responsible for answering to VNC sessions. But I need to hide the IP of Y server so I want X server to be as VNC Proxy and redirect all VNC sessions to Y server.
I guess the best way is to use iptables but actually I can't get it working so
I've got a machine running Ubuntu Server that is on several VLANs. Each VLAN has its own subnet and the server has an address on each subnet. The switches are set to allow tagged traffic to the server for each VLAN that it is on. Switch ports ending with workstations are given untagged ports on whatever VLAN is appropriate. Workstations are given addresses on a subnet for each VLAN via DHCP. All this works great and hosts on any subnet/VLAN can access the server as normal via its address on that subnet/VLAN.
Accessing the machine by its address on a non-local subnet is where I run into a problem. Inter-subnet traffic has to go through a router, which has been set up appropriately. Running tcpdump on the server and pinging it from a workstation on a subnet, using its address on a different subnet, shows the server receives the ping, but sends no response:
Code:
sudo tcpdump -i vlan4 -n
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
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In my httpd log I always get this recurring error
[notice] Digest: generating secret for digest authentication ...
[notice] Digest: done
[warn] RSA server certificate CommonName (CN) `srvspam' does NOT match server name!?
My Pug Server has worked faithfully for many years just sitting in a closet. It is designed wo that you never need to add a monitor or keyboard as it is administered through a web interface. Recently it had a problem with the motherboard and I had to replace it, but the machine is now working. However, it no longer is visible as a network drive on my Windows machine.Unfortunately I have no idea where to start looking to see what the problem is. I did attach a keyboard and monitor and logged on, but everything looks okay (I can see my files, etc.).
This is an old machine (c. 2003), so has an old version of Linux (I have no idea what version, or even how to find out). Since it is never meant to be used directly it doesn't have any GUI installed, so I have to do everything using command line.Does anyone have any suggestions as to how I can even start to determine what the problem is or how I can go about trying to fix it? At this point I would be happy just to get the files out and replace it with a newer NAS.
Just something that struck me while working on our virtual servers today.
I have bonded 3 NICs at the host in Ubuntu Server 8.04 LTS. They are using mode 0 for Round-robin. Point is to increase the speed/performance of all the servers, but mainly the fileserver. The fileserver is a virtual server running Ubuntu Server 8.04 LTS on VMware Server 2.0.
1) I noticed the NIC in the slave OS reported link speed as 1000 and Im unable to change it as the NIC (virtual one) doesnt support it. Does this not really matter, as the NIC doesnt exist, and it will run at higher speeds anyway? Or do I have to remove the bond on the host, bridge all 3 interfaces from the host to the slave OS, and then make a bond in the slave OS?
2) While at it, does mode 0 only increase performance on data being sent from the host or does it also increase the available incoming bandwidth?
On a remote system, when all you have is the ssh CLI -
How do you find out the ip addresses for:the Gateway
the DHCP server
the DNS server
Don't need to make any changes.
Which commands will display this info?
In Gnome Places->Connect To Server dialog, I am having problem using the Custom Location Service Type. I enter in the URI as
Code:
smb://username:password@ipaddress/share_name
I get an pop up error message that says:
Quote:
Cannot Connect To Server. You must enter a name for the server.
Which would be fine if there was actually a place for me to enter the name which there is not. What am I doing wrong. This is the first time I have tried using the Connect To Server dialog. Normally I just use a script I wrote to mount my share in a folder on my local drive as some programs cannot access the mounted network folder. In a browser all I have to do is:
Code:
smb://ipaddress/share_name
I tried using Windows Shares, but that did not work either. It does work if I click on network and access the share that way, but some programs like firefox and a few others that I want to save a file to my network drive do not show the network unless the share is mounted in a folder. So, I wrote a script:
Code:
#!/bin/sh
#mount ext storage drive
mount -t cifs //192.168.0.2/files -o username="username",password="password" /mnt/files
This works and I can use this, but it would be handy if I could just use the Connect To Server dialog.
we have deployed linux Santos 5.4 server and window 2003 server. we are able to ping window server from linux but not linux server from window. all are in same network.
View 1 Replies View RelatedI set up a ubuntu server 10.04 lts as file server in a network filled with xp, win 2003 and win 2008.
I noticed that if from any bill's SO machine i copy a file (for example a vob file of 1gb, or a lot of doc and pdf files) in the samba server, while the copy is in progress if in another windows I browse other folders shared in Samba, the copy process stops and say ' the name in the network is no more available( or something like this). It seems that samba pay attention on the fact that a user is browsing the share and doing so it seems that Samba forget that in one of its share there was a copy in progress, very annoing. A file server cannot do that, in this way is useless.
I would like to setup 2 linux machine each with two ethernet cards, and need to connect to two subnet e.g. 192.168.*.* and 10.0.*.* . If one linux machine out of order, the other will take over all the services(1 httpd and two named(192.168.*.1 and 10.0.0.1 as server ip). What network config is best and easy to failover to other machine?
View 1 Replies View RelatedI have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
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then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
I have multiple public ip addresses.My DSL modem blocks ping from a server behind the modem (nb6+4w) modem lan ip (gateway) is xxx.xxx.xxx.105the server is xxx.xxx.xxx.107If I DMZ this server it responds to pings.If i don't want to use DMZ, what service is ping using.I have set up virtual server 443 to this 107 ip as it's a SSL server
View 5 Replies View Relatedi know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
Im trying to make an ubuntu server box my entrypoint to my networking. Meaning itll function as a server, a firewall, and a gateway. so i already installed dhcp3 and a dns server.
I have 2 ethernet cards in it. So now i wonder, should i the second card into a router's modem/wan port and make the router a switch? or should i plug it into one of the routers lan ports?
I am trying to get a Linux (Slackware 13.37) working in a Windows networking environment. The IT support for this organisation does not extend to Linux support, so I'm limited in what help I can get for this.
I'm trying to get to the point where I can get to the internet to download what I need on this Linux machine.
The situation is this (*fictitious addresses used) -My Linux machine uses a fixed IP address (10.100.150.21)
My Windows machine uses a DHCP assigned IP address (10.100.150.213)Both Linux and Windows machine are configured to access the gateway server (10.100.150.1)So, I can ping the Linux machine from the Windows machine and vice-versa.I can ping the gateway machine from the Windows machine.I can browse Windows Shares on the network via SMB from the Linux machine.I CANNOT ping the gateway machine from the Linux machine with the Destination Host Unreachable message being the error message.
For actual internet access I need to access a proxy server but since the Linux machine can't even ping the gateway server, it fails to ping the proxy.Now, I have been told the gateway is a HW based router and for Windows machine they use some software for authentication to connect to the network. This software isn't available for Linux, so that's why I've been told to use a fixed IP address.My experience of networking is pretty basic and most of the Linux setup is done via running Slackware's setup program.
I want to use my server software for more than just a web server. Any good links on setting up a Domain and roaming profiles?
View 2 Replies View RelatedI need to connect with a server apart from the server which I work on. What is the command for this?
View 5 Replies View RelatedI have a OpenSUSE 10.1 system on my college network and I am able to ssh to other college servers, but I cannot ping these servers. More importantly than pinging when I try install one particular program it needs to be able to access one of the college servers (which has the license for it) but it is not able to contact the server.I have installed this program on other computers (windows and redhat linux) on the college network and they can connect to the server (and they can also ping the server).But Idon't know how to fix this problem.I have googled lots of things but I am a bit bamboozled.I have turned off the firewall but it doesn't make a difference.
View 2 Replies View RelatedI've had a server running for over a year and it's been very stable. Suddenly (no config or software changes) it's behaving oddly. If I perform a network related activity, it appears to effect other separate network functions. Example: I get onto the machine using realvnc server and suddenly port 80 goes down, or I can access port 443 inside the network but not externally, or I can get to 443 but not 80. The server has two network cards. Switching to the second card appears to have had no effect. I also tried rebooting, switching in a new network cable, bouncing the network card (which does re-establish services, but not consistently). I have several servers and this is the only one misbehaving. It's running Debian Etch (as are a few others).
View 6 Replies View RelatedI've got a home server running Ubuntu Server 9.04 and several machines running Ubuntu Desktop (9.04 and 8.04) and Windows (XP, Vista and 7). Now what I want to do is to create a domain and directory server similar in function to Windows Server w/ AD and join my other machines to the domain, but am not sure where to start. I already have file shares with Samba but now I want to setup a domain.
View 3 Replies View RelatedI have a domain name registered in asianet.com, they provide email service also, can i use local mail server and registrar's smtp server at same time?
View 5 Replies View RelatedI am thinking of moving the router behind a server and connecting the server directly to the internet via a modem. Are there any security issues related to doing this? or other things I should be aware of. Iptables are implemented on the server blocking access on unused ports.
View 2 Replies View RelatedI have one server with Trustix Linux distro (3.0) with two network cards. I want have this server connected directly to the internet in the eth0 card. in the eth1 card, i want connect my internal network.
I've been reading about this but i still can't fix my problem.
My eth0 card is configured with DHCP My eth1 is configured with a static Ip address (192.168.1.1) I have the DHCPD configured to assign IP's to the internal network.
When i connect one computer in the eth1 card, this computer get's the ip
address, netmask and gateway (192.168.1.1).
From this computer (host), i can ping the eth0 and the eth1 cards. From the server, i can ping the host computer and the internet.
The problem is i can't ping any internet page from the host (the computer in my internal LAN) and of course i do not have access to the internet in this computer.
I already activated the ip_forward (echo "1" > /proc/sys/net/ipv4/ip_forward).
With or without the iptables working, the same behavior. In the resolv.conf i have the correct DNS's servers.
I also read in some posts that we should modify the linux.conf file wiht the network cards