“How if a machine can not ping outside”版本间的差异
来自cslt Wiki
（以“1. check if can ping the gateway. Firstly, 192.168.0.1, and if double ips, 166.111.134.1 2. check the route: netstat -rn or route 3. you need set DEFROUTE='no' fo...”为内容创建页面） |
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| （相同用户的一个中间修订版本未显示） | |||
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| + | ===Default route error=== | ||
| + | |||
1. check if can ping the gateway. Firstly, 192.168.0.1, and if double ips, 166.111.134.1 | 1. check if can ping the gateway. Firstly, 192.168.0.1, and if double ips, 166.111.134.1 | ||
2. check the route: netstat -rn or route | 2. check the route: netstat -rn or route | ||
| − | 3. you need set DEFROUTE='no' for NICs that are not the default route. | + | 3. you need set DEFROUTE='no' for NICs that are not the default route, here in the cslt case, 166.111.xx.xx. |
| + | |||
| + | 4. The problem of #3 happs when grid-1 can not reach outside, and so cvss and bugdb can not send mails. | ||
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| + | ===DNS resolution error=== | ||
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| + | In centos7, DNS resolution never uses /etc/resolv.conf, but in sysconfig/nework-script/ifcfg-xxx, setting | ||
| + | DNS1, DNS2, ..., etc. The default DNS, 192.168.0.50 may sometimes can not provide good dns response, so you can | ||
| + | add additional DNS server: | ||
| + | |||
| + | *166.111.8.28 | ||
| + | *166.111.8.29 | ||
| + | *114.114.114.114 | ||
| + | *8.8.8.8 | ||
2018年5月15日 (二) 23:17的最后版本
Default route error
1. check if can ping the gateway. Firstly, 192.168.0.1, and if double ips, 166.111.134.1
2. check the route: netstat -rn or route
3. you need set DEFROUTE='no' for NICs that are not the default route, here in the cslt case, 166.111.xx.xx.
4. The problem of #3 happs when grid-1 can not reach outside, and so cvss and bugdb can not send mails.
DNS resolution error
In centos7, DNS resolution never uses /etc/resolv.conf, but in sysconfig/nework-script/ifcfg-xxx, setting DNS1, DNS2, ..., etc. The default DNS, 192.168.0.50 may sometimes can not provide good dns response, so you can add additional DNS server:
- 166.111.8.28
- 166.111.8.29
- 114.114.114.114
- 8.8.8.8
