Fedora Networking :: Ping - Shields Up Says It Does But It Don't?
Jul 15, 2009
My ISP (Insight if you know them) says I had open ports. OK I did! Shame on me! I'll blame my $15.00 router but I know it's my fault. OK took care of that.But when I run Shields Up from grc.com it keeps telling me it can ping (IMCP) me. I tried to get the firewall to stop, or drop the ping and it seems to on my local network, I can't ping my my boxes locally and I can't even ping my router. But Shields Up keeps telling me it can ping meAny one know how I can see what's sending the ping, or I guess they call it the pong, back to echo the ping?
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Jul 15, 2011
I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
But if I gave ping -I eth1 <IP> then I can ping.
I cannot install any package, so tell me solution which includes not installing any package.
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May 21, 2009
I have connected xp and fedora through crossover cable . xp has ip address 192.168.0.1/24 (manually assigned) fedora has 192.168.0.2/24 with default route equal to 192.168.0.1
I can ping fedora from xp computer but i can't able to ping xp from fedora computer.
I have manully edit the /etc/sysconfig/network-scripts/ifcfg-eth0 file with correct subnet mask and ip address because when i tried to give ip address manully in network manager the subnetmask is replaced with gateway address don't know why.
Now i want to share internet through crossover cable . xp is connected to internet through wireless usb adapeter.
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Jan 19, 2010
Host - Fedora 12 64bit
KVM
VM - Windows Server 2008 64 bit
bridge-utils
VM can ping host and Internet but host can't ping VM.
I set VM static IP 192.168.0.205.
It turns out dynamic IP - 192.168.0.55
On host:
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May 27, 2011
How do i test a Debian server using Lynx to test if there are open port externally?With GUI i use Shields Up from grc.com.In text mode with lynx - i don't know how to test the ports
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Jul 9, 2010
Ive got a problem on my server ....installed Debian 5 , Webmin and than syscp settung up syscp ready ....
I try to ping "localhost" ansver ping: unknown host
I try to ping "localhost." there is a host with IP 127.0.0.1
I need it to change it in "localhost"
Is that the bind9 maybe?
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Jul 24, 2010
I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
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Feb 1, 2011
I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.
I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.
I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.
Configs below:
Ping by hostname - there is a 5-6 second delay between each one of the responses:
Code:
Ping by IP - the responses come VERY quickly one after the other:
Code:
/etc/resolv.conf:
Code:
Code:
rev.0.168.192.in-addr.arpa:
Code:
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Apr 29, 2010
So, I have an Virtual Machine running CentOS 5.4. It sits behind a hardware firewall which also does NAT'ing. I've set up plenty of these, so I know for sure the firewall and NAT rules are set up correctly. From the host, I can ping anything in my subnet and the gateway. But I can't ping anything else beyond the gateway. I can perform DNS queries and when I try to ping, it finds the appropriate IP address.But from the outside, I can ping the PUBLIC address (It's a 1 public to 1 private address NAT, not 1 public to multiple private). I've tried it with IPTABLES on and off, with no change.
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May 26, 2010
I have Mandriva One 2009.0 (192.168.1.100) on one box and Mandriva Free 2010.0 (192.168.1.118) on the other. I can ping router (192.168.1.1) from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.
Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.
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Jan 13, 2009
For some reason some command line commands are unable to resolve urls, whereas other commands work as they should. I have checked most setting but am unable to find out what is wrong and am no closer to figuring out what and why.
[root@subzero ~]# yum update
Loaded plugins: refresh-packagekit
[URL]: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')>
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: atrpms. Please verify its path and try again
[root@subzero ~]# .....
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Apr 29, 2010
I have been beating my brains out the last few days trying to get my linux box to ping my Pc's via the netbios name. (ping pc_name) I have read post after post with no luck at all. What i do know is that my pc's can ping the linux box via netbios name with no problem. Samba works from the pc's but not the other way around. I have added wins to my host in the nsswitch.conf fileMy smb.conf file:Quote:
global]
workgroup = OFFICE
server string = Samba Server Version %v
[code]....
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Aug 27, 2010
I am using f13
Quote:
$ uname -rsmi
Linux 2.6.33.8-149.fc13.i686.PAE i686 i386
I am using a dhcp network. Problem is I can SSH/ping to my machine but can't SSH/ping to my machine from the remote one(In internal network of my lab). What to do? I understand this is very little information....but I dont know what to provide.
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Nov 5, 2010
Have installed fedora 14 on a HyperV virtual machine, have added a Legacy network adapter in the Hyper-V settings for this virtual machine that fedore pics up as eth0. I'm pretty sure this card is able to pick up an IP address from a DHCP server on our network but I'm unable to ping any boxes from this fedora virtual machine or ping the fedora machine from another box on the network. I have tried to disable the firewall and SELinux incase it was that stopping the pinging each way but that didn't help.
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Jun 25, 2011
Not sure what iis going on, I can ping some hosts on the internet but not others see below (adobe is not the only example) Works OK from another host on the same network with same GW and DNS iptables is turned off
[root@havoc init.d]# ping www.arrl.org
PING www.arrl.org (184.106.62.248) 56(84) bytes of data.
64 bytes from www.arrl.org (184.106.62.248): icmp_req=1 ttl=55 time=94.1 ms
64 bytes from www.arrl.org (184.106.62.248): icmp_req=2 ttl=55 time=93.0 ms
64 bytes from www.arrl.org (184.106.62.248): icmp_req=3 ttl=55 time=99.4 ms
64 bytes from www.arrl.org (184.106.62.248): icmp_req=4 ttl=55 time=96.8 ms
[Code]...
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Jul 3, 2011
I have 4 installations of Fedora 14 running on a Win 2008 R2 server in Hyper-V.
When I try to ping my desktop or the host server via the hostname from within any of the Fedora installations, the ping fails. I can ping by IP without issue. Also if I try to ping the VMs from my desktop it fails. I have an XP VM setup that I can ping without issue via hostname and IP.
All of the VMs can access the Internet without issue. I have disabled all firewalls on all systems with no luck. My desktop can ping the Hyper-V server without issue so it would appear that the problem lies with the Fedora installations.
My resolv.conf
Code:
Does anyone have anything I can try to get the name resolution working?
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Jun 19, 2009
I'm using FC10 on my box at work. It is behind an anthenticated proxy for internet connection. In Gnome, I configured the Network Proxy through the GUI, as my browsers too.
So I can browse internet pages, install packages thru Add/Remove Software GUI, but I cant do it in the command line, using yum install, for example. Then trying to figure it out, I saw that it cant reach the package mirrors. It isnt a DNS problem, I set the /etc/resolv.conf correctly, as the host command works correclty. I can ping the local pcs on the network too. Firewall is disabled. Below some simple tests:
[rtovo@davinci ~]$ ping mirrors.fedoraproject.org
connect: Network is unreachable
[rtovo@davinci ~]$ host mirrors.fedoraproject.org
mirrors.fedoraproject.org is an alias for wildcard.fedoraproject.org.
[Code].....
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Aug 6, 2009
I have a pretty strange problem I can ping www.yahoo.com:
Code:
[root@localhost ~]# ping www.yahoo.com
PING www-real.wa1.b.yahoo.com (69.147.76.15) 56(84) bytes of data.
64 bytes from f1.www.vip.re1.yahoo.com (69.147.76.15): icmp_seq=1 ttl=52 time=20.1 ms
64 bytes from f1.www.vip.re1.yahoo.com (69.147.76.15): icmp_seq=2 ttl=52 time=20.7 ms
64 bytes from f1.www.vip.re1.yahoo.com (69.147.76.15): icmp_seq=3 ttl=52 time=23.3 ms
[Code]...
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Dec 28, 2009
I've got a weird problem on my fedora 12.
My computer is running behind an ISP box, Firewall shut off, SELinux disabled.
I've a local IP address : 192.168.0.2 dynamically given by the ISP through DHCP
I've got bind installed. I've defined a domain (let's call it mydomain.com) in the /etc/named.conf this way :
Code:
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
[Code].....
Finally, the named service is running.
Here is the trouble : I can ping my domain, but when I try to browse to this domain in my browser, the connection is rejected !
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Apr 30, 2010
I installed Fedora 12 on my laptop. I have a wireless connection to the internet that works fine, I attached an Ethernet cable from this laptop to a windows machine. There is a green light.
I can ping my localhost. I can ping the windows machine using it internal IP address via the router. However, the eth0 IP address does not work when I ping to it from the windows nachine. Also, I cannot ping to the windows machine using the IP address associated with the Ethernet connection.
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Jun 9, 2010
i have Fedora 13 dual booting with Win XP and i cannot ping my router in Fedora. just reinstalled and i'm still unable to ping my router.everything looks like it was installed correctly except in the ifcfg-eth0 it has IPV4_FAILURE_FATAL=yes dont think this should have a value of yes.
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Feb 3, 2011
I want to implement routing using fedora 14. The following is how I arrange my computers -
[PC1]<=======>[ROUTER]<=======>[PC2]
And the following are the configuration -
PC1 : (Tiny Core Linux)
eth0 192.168.2.2/24 (netmask 255.255.255.0)
ROUTER (FC14)
eth0 192.168.2.1/24 (netmask 255.255.255.0)
eth1 192.168.4.1/24 (netmask 255.255.255.0)
PC2 (Tiny Core Linux)
eth0 192.168.4.2/24 (netmask 255.255.255.0)
On the ROUTER I have set the ip_forward=1 and eth0.proxy_arp=1 and eth1.proxy_arp=1
then I run the following command :
route add -net 192.168.2.0/24 gw 192.168.2.1 dev eth0
route add -net 192.168.4.0/24 gw 192.168.4.1 dev eth1
On PC1 I executed the following :
route add -net 192.168.4.0/24 gw 192.168.2.1 dev eth0
and for PC2 I run the following
route add -net 192.168.2.0/24 gw 192.168.4.1 dev eth0
After doing those things, I can't ping between PC1 and PC2... but both can ping the router...
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Feb 28, 2011
Background: In attempting to move from XP to linux, I have a F14 live USB stick -- can boot Dell M6400, see the internal drive and USB sticks. Wired ethernet network is seen only if ethernet cable is plugged in before booting. Then, I can ping sites by name (yahoo.com, google.com) -- however, FireFox does not load any web-page over the internet -- it does not put up an error message either, it just keeps waiting (it is in on-line mode).Info on the system
uname -a
Code:
Linux localhost.localdomain 2.6.35.6-45.fc14.x86_64 #1 SMP
Mon Oct 18 23:57:44 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
[code]...
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Jun 17, 2009
Since I installed FC11 I can't get vpnc to work (I always getno response from target").Also I can't ping any external IP even with the firewall disabled.What I see strange is that I had the same configuration in FC10 and the router configuration seems okay to me:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.64.64.64 * 255.255.255.255 UH 0 0 0 ppp0
[code]...
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Jul 31, 2009
I was using my ISP's DNS server. When I would ping something that doesn't exist, e.g. blahtest.com, it would reply anyway. When I tried to go to the site in a browser, it was some page like "I hope we can help you find what you're looking for". I thought that was ridiculous, so I changed to OpenDNS's DNS server.
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Aug 13, 2009
I'm having a strange problem with my Fedora 11 install under VMWare Server. I can look up hosts in nslookup, host, and I can ping servers using their names, but when I use curl, firefox, or yum, it says it can't resolve the host name.
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Nov 27, 2009
I have installed windows server 2003 on my computer, and i can surf the internet with my gui-based web browsers.
I have also installed vmware workstation 6.5 on the same computer, and successfully installed fedora 12 in vmware, with network is bridged.
I can successfully ping websites at the command line, e.g., ping [url], it did get replies with time and ttl, but i can't open the websites with firefox or conquerer browsers.
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Jul 22, 2010
I run a small home network with a wireless network using Apple airport wireless router. I have two macs and one Linux box (Fedora 13). Everything worked until about a week ago. Now the two macs can communicate with each other, and one of the macs can communicate with the Linux box, but the other can't, which is a bummer because it is a print server.
Pinging from the mac to the linux box gives the error message:
ping: sendto permission denied
Ping from the Linux box to the mac just hangs:
[/home/pjs] # ping 10.0.1.5
PING 10.0.1.5 (10.0.1.5) 56(84) bytes of data.
Firewalls on both boxes have been disabled. The Mac was running Little Snitch, but it has been uninstalled.
I have looked for messages from /var/log/message using tail -f and there are none when I ping either way.
ifconfig and /etc hosts, hosts.allow and hosts.deny look normal.
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Jul 28, 2010
Can you find my blind spot? I had PuTTY up & running untill I did a reinstall of Fedora13.I can ping 192.168.1.163 fine. SELinux is disabled. Firewall is default (SSH allowed on p22).I have just disabled the firewall with same result)
PuTTY reports:
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2010.07.20 16:23:52 =~=~=~=~=~=~=~=~=~=~=~=
Event Log: Writing new session log (SSH raw data mode) to file: C:UserswimDesktopputty.log
[code]....
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Nov 11, 2010
i'm running some virtual Fedora installations on a windows server 2008 with hyper-v. Most of them are Fedora 12 and 13. Everything works fine for some years. Yesterday i want to upgrade a F13 machine to F14 by netistall. The upgrade ran without any problems. After the reebot the machine was off the network. All the networkconfigs by DHCP are OK, IP address, gateways, DNS settings and so on. But the machine can't ping or connect to other hosts. I tried an VM from scratch with both F14 i386 and x86_64 - same ****. This is the first time i had such a problem by upgrading Fedora machines.
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