My linux version: CentOS Linux release 7.5.1804(core)
I deleted the python default environment mistakenly, then i can not use yum command anymore. It seems yum depends on the python default environment.
Anyone could tell me how to recover from this ?
Sorry for this late reply, I finally figured it out on my own. The truth is that if IPv4 and IPv6 address are configured at the same time, The Linux (Cent os 7)would request A record and AAAA record with same source IP, source Port, destination address and destination port at the...
Waiting for help, My machine is running Linux Cent OS 7.4, however, i found that DNS works for ping and nslookup but wget/curl/dig failed always. I am sure DNS server is okay.
when issuing commands like wget/curl/dig, there's DNS request for URL, but DNS always failed to response.