shadowsocks can not open https://scholar.google.com
page show error:
Google Sorry…
We’re sorry…
…but your computer or network may be sending automated queries. To protect our users, we can’t process your request right now. See Google Help for more information.
the solution is: edit the VPS setting, vim /etc/hosts , under the ipv6, add below
2404:6800:4008:c06::be scholar.google.com
2404:6800:4008:c06::be scholar.google.com.hk
2404:6800:4008:c06::be scholar.google.com.tw
2401:3800:4001:10::101f scholar.google.cn #www.google.cn
My VPS server is vultr, it works. But I don't know whether other server is OK?
the solution is: edit the VPS setting, vim /etc/hosts , under the vpi6, add below
2404:6800:4008:c06::be scholar.google.com
2404:6800:4008:c06::be scholar.google.com.hk
2404:6800:4008:c06::be scholar.google.com.tw
2401:3800:4001:10::101f scholar.google.cn #www.google.cn
My VPS server is vultr, it works.
Reference: https://www.flyzy2005.com/tech/shadowsocks-google-scholar/
make sure your vps has right ipv6 access
OS: Ubuntu 16.04.3 LTS (GNU/Linux 4.12.2-041202-generic x86_64)
ss version: shadowsocks-libev 3.1.3
1. add '-6' to resovle hostname to IPv6 address first
vi /etc/default/shadowsocks-libev
...
# add '-6' to resovle hostname to IPv6 address first
DAEMON_ARGS="-u -6"
2. config.json add item "dns_ipv6": true
vi /etc/shadowsocks-libev/config.json
...
"dns_ipv6": true
3. add mapping [ipv6: domain] in /etc/hosts
vi /etc/hosts
...
## Scholar
## type 'host google.com' to get the correct ipv6 address
## for me it's '2607:f8b0:4005:804::200e'
2607:f8b0:4005:804::200e scholar.google.cn
2607:f8b0:4005:804::200e scholar.google.com.hk
2607:f8b0:4005:804::200e scholar.google.com
2607:f8b0:4005:804::200e scholar.l.google.com
systemctl restart shadowsocks-libev
enjoy!
ref: https://github.com/shadowsocks/shadowsocks-libev/issues/113
Related
I posted my solution too. I hope this saves someone else a lot of time.
I have an EC2 instance running Ubuntu 20. DNS resolution never works, or fails a lot.
My file /etc/resolv.conf has
nameserver 127.0.0.53
The file is not a symlink, and I can certainly edit it to use nameserver 8.8.8.8 ,
But the file periodically gets overwritten and the 127.0.0.53 (or something similar) is back.
I just want dns to work!
See my solution below.
Get your nic's name from a config file.
cat /etc/netplan/50-cloud-init.yaml
On my system, amazon sets the nic name to ens5.
As root create new file: /etc/netplan/99-custom-dns.yaml
with the following content.
Replace ens5 with your nic's name.
network:
version: 2
ethernets:
ens5:
nameservers:
addresses: [8.8.8.8]
dhcp4-overrides:
use-dns: false
Reboot
sudo shutdown -r now
Verify. After the reboot you can try pinging something by name
ping yahoo.com
or you can view the output of:
systemd-resolve --status
Done
Here's a link to the Amazon help doc, though it misses the nontrivial detail about your nic's name:
https://aws.amazon.com/premiumsupport/knowledge-center/ec2-static-dns-ubuntu-debian/
NFS Mount is not working in my RHEL 7 AWS instance.
When I do a
mount -o nfsvers=3 10.10.11.10:/ndvp2 /root/mountme2/
I get the error:
mount.nfs: requested NFS version or transport protocol is not supported
Can anyone point me where I am wrong?
Thanks.
Check the nfs service is started or reboot the nfs service.
sudo systemctl status nfs-kernel-server
In my case this package was not running and the issue was in /etc/exports file where i was having same IP address for two machines.
So i commented one ip address for the machine and restarted nf-kernel-server using
sudo systemctl restart nfs-kernel-server and reload the machine.
It worked.
A precision which might be useful for the dump (like me): systemctl status nfs-server.service and systemctl start nfs-server.service must be executed on the server!
Some additional data
If, like me, you've deleted a VM without shutting it down right you might also need to manually edit the file /etc/exports because NFS is trying to connect to it and fails but doesn't continue with the next, it just dies.
After that you can manually restart as mentioned in other answers.
In my case, a simple reload didn't suffice. I had to perform a full restart:
sudo systemctl status nfs-kernel-server
In my case, it didn't work correctly with version NFS 4.1.
So in Vargantfile in each place where is type: 'nfs' I added coma and nfs_version: 4, nfs_udp: false
Here is more detailing explanation NFS
If you're giving a specific protocol to connect with, also check to make sure your NFS server has that protocol enabled.
I got this error when trying to start up a Vagrant box, and my nfs server was running. It turns out that the command Vagrant uses is:
mount -o vers=3,udp,rw,actimeo=1 192.168.56.1:/dir/on/host /vagrant
Which specifically asks for UDP. My server was running but it was not configured to enable connecting over UDP. After consulting /etc/nfs.conf, I created /etc/nfs.conf.d/10-enable-udp.conf with the following contents to enable udp:
[nfsd]
udp=y
The name of the file doesn't matter, as long as it's in the conf.d directory and ends in .conf. Depending on your distribution it may be configured differently. You can directly edit nfs.conf, but using a conf.d file is more likely to preserve the changes after upgrading your system.
Try to ping IP address of the server "ping " from client "ping , if you get reply then install nfs server on the host. Then edit /etc/exports file don't forget to add port along with IP address
I got the solution: make an entry in nfs server /etc/nfsmount.conf with Defaultvers=3 .
There will # Defaultvers=3 just unhash it and then mount on nfs client.
Issue will be resolved!
I have downloaded the newest MAMP version (3.0.5) and I am unable to connect to the localhost. All I get in Google is "Oops! Google Chrome could not find localhost:8888". I have tried all these things...
Re-downloaded MAMP several times and restarted comp
Changed the ports to 80 & 3306
Turned Firewall on and off and added "MAMP" as an incoming connection
Turned Web Sharing on and off
Checked and unchecked options in MAMP Preferences and hit ok/restart
Is there any solutions out there that have worked for you? I know it all varies, but anything to get this going would be a miracle at this point.
Thank you!
I was also experiencing the same issue on my OS X 10.9.4 with MAMP Pro 3.0.5 installed. The fix was very easy: missing info in my hosts file.
Solution found on: http://forum.mamp.info/viewtopic.php?f=2&t=82253
Note - I am using Mountain Lion
1) check your host file
go to folder /etc/
File path is: Your-hard-drive:private:etc:hosts
this is an invisible folder so you will need something that allows you to view invisible files folders on your Mac. I have Pathfinder installed which allows me to do this.
there should be an entry that makes localhost work
For me there was nothing in the hosts file. It was blank
2) Drag it to the desktop, that'll copy it
3) Paste the following into it and save it:
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
4) Then delete the one in the etc folder (it'll ask for your password)
5) Then move the copy into the etc folder (password again)
6) Then open terminal and paste this in:
sudo killall -HUP mDNSResponder
(It will require your password)
7) I needed to restart my computer and then MAMP started working again!
MampGuy
I don't understand the error message. I am trying to do is to run a MPICH2 application after I installed mpich2 version 1.4 or 1.5 to /opt/mpich2 (both version failed with the same error). My MPI application was compiled with 1.3 but I am able to run it with mpi 1.4 on another workstation. I am testing it on Ubuntu 12.04.
Fatal error in PMPI_Init_thread: Other MPI error, error stack:
MPIR_Init_thread(467)..............:
MPID_Init(177).....................: channel initialization failed
MPIDI_CH3_Init(70).................:
MPID_nem_init(319).................:
MPID_nem_tcp_init(171).............:
MPID_nem_tcp_get_business_card(418):
MPID_nem_tcp_init(377).............: gethostbyname failed, localhost (errno 3)
Solution for macOS
I stumbled upon this issue on macOS 10.12.1.
The solution is to add 127.0.0.1 computername.local to /etc/hosts. Your file will look more or less like this:
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
127.0.0.1 computername.local
255.255.255.255 broadcasthost
::1 localhost
You can change/check your computer's name if you go to System Preferences > Sharing > Computer Name.
What worked for me was the following:
Make sure your hostname is the same for 1 and 2 below:
terminal hostname
"/etc/hosts" hostname
So if you type cat /etc/hosts in terminal it should look like:
// 127.0.0.1 my_hostname
My hostname was not the same for 1 and 2 for me. Once I changed them to match then my mpi program would execute.
To change your terminal hostname type the following:
sudo scutil --set HostName my_new_host_name
To change your /etc/hosts hostname type the following:
sudo nano /etc/hosts
and then add the line
127.0.0.1 my_new_hostname
This error indicates that there's a problem resolving localhost. Check your /etc/hosts file, make certain that you have localhost correctly defined here, it should be pointing to 127.0.0.1. Try using ssh to connect to localhost, make sure that works as well.
Being the question different, the answer is probably the same I gave time ago for OpenMPI:
gethostname() function missing in openMPI
The MPI portable solution is to use MPI_Get_processor_name()
adding -host localhost to the command line solved this for me. Suggested in https://github.com/pmodels/mpich/issues/4710#issuecomment-661933489
e.g.
mpiexec -host localhost -np 4 ./testExecutable
Maybe your /dev/shm is full, try to clean it.
I am facing difficulty in executing MPI program on two machines. The OS is Ubuntu 12.04. And the MPI implementation is MPICH2
ssh is working fine:
root#ubuntu:/home# ssh 192.168.1.9
root#gpuguy's password:
Welcome to Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-29-generic i686)
* Documentation: https://help.ubuntu.com/
131 packages can be updated.
67 updates are security updates.
Last login: Thu Oct 24 17:36:25 2013 from ubuntu.local
root#gpuguy:~#
But when I run my MPI programs it fails:
root#ubuntu:/home# mpiexec -f hosts.cfg -n 4 hello
root#192.168.1.9's password:
[proxy:0:0#gpuguy] HYDU_sock_connect (./utils/sock/sock.c:171): unable to get host address for ubuntu (1)
[proxy:0:0#gpuguy] main (./pm/pmiserv/pmip.c:209): unable to connect to server ubuntu at port 42104 (check for firewalls!)
I have already disabled firewall on both machines that is the reason I can do ssh successfully. But how to solve this issue?
My MPI code runs successfully on single machine.
For MPICH (or any MPI implementation) to work, you need to have passwordless SSH set up. I should also mention that you really shouldn't have to be logged in as root to make this work. It's generally a very bad idea to be logged in as root all of the time.
In /etc/hosts file, add ip address of each server and its hostname.
You should do this for all the servers.
for example:
10.10.0.5 server1
10.10.0.6 server2
10.10.0.7 server3
Just check in /etc/hosts file, not use tab (\t) instead of space to separate between ip address and hostname.
This is wrong:
10.10.0.5 \t server1
This is true:
10.10.0.5 server1
Be careful to not delete or modify existed lines in /etc/hosts file. only add new lines at end of file.
Also, you do not need to disable firewall to fix this issue.