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Flash Thunder's questions

Martin Hope
Flash Thunder
Asked: 2020-12-17 09:54:31 +0800 CST
  • 2

我得到了一个 128GB 的​​图像。试图下载它，openstack image save --file ...但似乎客户端首先将整个文件放入内存中。当然它会溢出它并失败。这是为什么？如何在客户端机器上下载比可用内存大得多的图像？

openstack
Martin Hope
Flash Thunder
Asked: 2017-12-01 11:21:25 +0800 CST
  • 0

为什么 nslookup 或 dig 不返回某些域的名称服务器？

例子：

dig @8.8.8.8 NS zzy.pl

; <<>> DiG 9.9.5-9+deb8u10-Raspbian <<>> @8.8.8.8 NS zzy.pl
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9801
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;zzy.pl.                                IN      NS

;; AUTHORITY SECTION:
pl.                     1724    IN      SOA     ns1.dropped.net.pl. kontakt.dropped.pl. 2008121404 3600 1800 1209600 3600

;; Query time: 101 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Thu Nov 30 19:15:36 UTC 2017
;; MSG SIZE  rcvd: 103

.

nslookup -type=ANY -timeout=10 zzy.pl 8.8.8.8

Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
Name:   zzy.pl
Address: 212.91.7.33
Name:   zzy.pl
Address: 212.91.6.58

Authoritative answers can be found from:

来自whois：

DOMAIN NAME:    
zzy.pl

registrant type:    
organization

nameservers:    
ns1.aftermarket.pl.    
ns2.aftermarket.pl.

(...)
whois