Linix Mint Live CD: DNS not working, but will ping out fine
Mint Servers were hacked, linked OS ISO was compromised!
On Feb 20th, 2016: Hackers made a modified Linux Mint ISO, with a backdoor in it, and managed to hack the Mint website to point to it.
Looks like I won the lottery! The compromised OS was made into a bot.
Obviously if you've downloaded Linux Mint from linuxmint.com between Feb 20-21, you need to check your MD5. Likely you will need to acquire a legit version.
I found a legit copy, and what do you know? The internet works fine now.
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Bort
Updated on September 18, 2022Comments
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Bort over 1 year
I am running the Linux Mint (Cinnamon) 64-bit Live CD with VirtualBox on my Windows 8.1 Host computer.
The guest can ping 63.84.3.27 (Google) just fine, but cannot access the web.I tried changing the DNS from 'automatic' to 8.8.8.8, 8.8.6.6 and to the default gateway (10.0.2.2) but neither help.
nslookup
failsWhat should I do next?
mint@mint ~ $ ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:35:ec:85 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 inet6 addr: fe80::ao0:27ff:fe35:ec85/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:74 errors:0 dropped:0 overruns:0 frame:0 TX packets:593 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2317887 (2.3 MB) TX bytes:71947 (71.9 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:1411171017 errors:0 dropped:0 overruns:0 frame:0 TX packets:1411171017 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:119667293579 (119.6 GB) TX bytes:119667293579 (119.6 GB)
mint@mint ~ $ ping 63.84.3.27 PING 63.84.3.27 (63.84.3.27) 56(84) bytes of data. 64 bytes from 63.84.3.27: icmp_seq=1 ttl=49 time=119 ms 64 bytes from 63.84.3.27: icmp_seq=2 ttl=49 time=116 ms 64 bytes from 63.84.3.27: icmp_seq=3 ttl=49 time=46.9 ms ^C --- 63.84.3.27 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 46.921/94.103/119.048/33.382 ms
mint@mint ~ $ netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 10.0.2.2 0.0.0.0 UG 0 0 0 eth0 10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 mint@mint ~ $ ip route show default via 10.0.2.2 dev eth0 proto static 10.0.2.0/24 dev eth0 proto kernel scope link src 10.0.2.15 metric 1
mint@mint ~ $ nslookup google.com ;; connection timed out; no servers could be reached
Edit:
mint@mint ~ $ ping www.google.com ping: unknown host www.google.com mint@mint ~ $ nslookup www.google.com 8.8.8.8 Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: www.google.com Address: 63.84.3.23 Name: www.google.com Address: 63.84.3.24 Name: www.google.com Address: 63.84.3.27 Name: www.google.com Address: 63.84.3.25 Name: www.google.com Address: 63.84.3.26 Name: www.google.com Address: 63.84.3.22 Name: www.google.com Address: 63.84.3.21 Name: www.google.com Address: 63.84.3.20
mint@mint ~ $ sudo cat \etc\resolv.conf cat: etcresolv.conf: No such file or directory
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Frank Thomas over 8 yearsfirst does
nslookup www.google.com 8.8.8.8
work? what DNS address should your DHCP server be pushing down? what do you get fromsudo cat \etc\resolv.conf
? how did you try to set the DNS server address? it is possible that your router expects you to use it for DNS resolution (masquerading), and is not letting DNS response traffic back to you. -
Bort over 8 yearsI edited my post with the results of those commands. Also, I set the DNS by going to "Network settings > IPv4, setting "automatic" to "Off", and entering the addresses there. I then issued "sudo ifconfig eth0 down", "sudo ifconfig eth0 up". I'm afraid I don't know what you meant by that last part involving masquerading.
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MDMoore313 over 8 yearsIt means you router is pretending to offer you dns but is really forwarding your requests to another dns server.
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