zabbix 的 discovery功能
监控dns，连接，传输，总共等不同时间段
cat /etc/zabbix/zabbix_agentd.d/http_time.conf
UserParameter=HttpUrl,/usr/bin/python /etc/zabbix/httpurl.py
UserParameter=http_dns[*],curl -o /dev/null -s -w %{time_namelookup} $1
UserParameter=http_connect[*],curl -o /dev/null -s -w %{time_connect} $1
UserParameter=http_transfer[*],curl -o /dev/null -s -w %{time_starttransfer} $1
UserParameter=http_total[*],curl -o /dev/null -s -w %{time_total} $1
cat /etc/zabbix/httpurl.py 不要放到/etc/zabbix/zabbix_agentd.d/下面
#!/usr/bin/env python
from json import dumps
url_list=[
"http://60.205.128.141/3m/17zuoye/1106/live/config/Server.json",
"http://doc5.3mang.com"
]
data = {}
list2 = []
for url in url_list:
Url = {}
Url['{#HTTP_URL}'] = url
list2.append(Url)
data['data'] = list2
jsonStr = dumps(data, sort_keys=True, indent=4)
print jsonStr
curl的部分时间等变量注释：
url_effective The URL that was fetched last. This is most meaningful if you've told curl to follow location: headers.
filename_effective The ultimate filename that curl writes out to. This is only meaningful if curl is told
to write to a file with the --remote-name or --output option. It's most useful in combination with the
--remote-header-name option. (Added in 7.25.1)
http_code http状态码，如200成功,301转向,404未找到,500服务器错误等。(The numerical response code that was found
in the last retrieved HTTP(S) or FTP(s) transfer. In 7.18.2 the alias response_code was added to show the same info.)
http_connect The numerical code that was found in the last response (from a proxy) to a curl CONNECT request
. (Added in 7.12.4)
time_total 总时间，按秒计。精确到小数点后三位。 （The total time, in seconds, that the full operation lasted.
The time will be displayed with millisecond resolution.）
time_namelookup DNS解析时间,从请求开始到DNS解析完毕所用时间。(The time, in seconds, it took from the start until
the name resolving was completed.)
time_connect 连接时间,从开始到建立TCP连接完成所用时间,包括前边DNS解析时间，如果需要单纯的得到连接时间，用这个
time_connect时间减去前边time_namelookup时间。以下同理，不再赘述。(The time, in seconds, it took from the
start until the TCP connect to the remote host (or proxy) was completed.)
time_appconnect 连接建立完成时间，如SSL/SSH等建立连接或者完成三次握手时间。(The time, in seconds, it took
from the start until the SSL/SSH/etc connect/handshake to the remote host was completed. (Added in 7.19.0))
time_pretransfer 从开始到准备传输的时间。(The time, in seconds, it took from the start until the file
transfer was just about to begin. This includes all pre-transfer commands and negotiations that are
specific to the particular protocol(s) involved.)
time_redirect 重定向时间，包括到最后一次传输前的几次重定向的DNS解析，连接，预传输，传输时间。(The time, in
seconds, it took for all redirection steps include name lookup, connect, pretransfer and transfer
before the final transaction was started. time_redirect shows the complete execution time for
multiple redirections. (Added in 7.12.3))
time_starttransfer 开始传输时间。在client发出请求之后，Web 服务器返回数据的第一个字节所用的时间(The time,
in seconds, it took from the start until the first byte was just about to be transferred. This
includes time_pretransfer and also the time the server needed to calculate the result.)
size_download 下载大小。(The total amount of bytes that were downloaded.)
size_upload 上传大小。(The total amount of bytes that were uploaded.)
size_header 下载的header的大小(The total amount of bytes of the downloaded headers.)
size_request 请求的大小。(The total amount of bytes that were sent in the HTTP request.)
speed_download 下载速度，单位-字节每秒。(The average download speed that curl measured for the
complete download. Bytes per second.)
speed_upload 上传速度,单位-字节每秒。(The average upload speed that curl measured for the complete
upload. Bytes per second.)
content_type 就是content-Type，不用多说了，这是一个访问我博客首页返回的结果示例(text/html; charset=UTF-8)；
(The Content-Type of the requested document, if there was any.)
num_connects Number of new connects made in the recent transfer. (Added in 7.12.3)
num_redirects Number of redirects that were followed in the request. (Added in 7.12.3)
redirect_url When a HTTP request was made without -L to follow redirects, this variable will show the
actual URL a redirect would take you to. (Added in 7.18.2)
ftp_entry_path The initial path libcurl ended up in when logging on to the remote FTP server. (Added in 7.15.4)
ssl_verify_result ssl认证结果，返回0表示认证成功。( The result of the SSL peer certificate verification
that was requested. 0 means the verification was successful. (Added in 7.19.0))