'2019/02/08'에 해당되는 글 4건

  1. 2019.02.08 squid 설치 및 설정 유틸리티
  2. 2019.02.08 squid 상태 모니터링
  3. 2019.02.08 kvm 관리용 툴(웹)
  4. 2019.02.08 proxy forward / reverse 차이

웬지 모를 파이썬의 스멜이 난다..


[링크 : https://sourceforge.net/projects/squidgui/files/]

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Posted by 구차니

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centos 에서는 squid 패키지에 포함된 것으로 보이는데


아래 명령어로 무언가 나오는데 멀 보는진 모르겠다 -_ㅠ

# squidclient -h localhost cache_object://localhost/ mgr:utilization 


# squidclient -h localhost cache_object://localhost/counters 

HTTP/1.1 200 OK

Server: squid/3.5.20

Mime-Version: 1.0

Date: Mon, 11 Feb 2019 08:04:04 GMT

Content-Type: text/plain;charset=utf-8

Expires: Mon, 11 Feb 2019 08:04:04 GMT

Last-Modified: Mon, 11 Feb 2019 08:04:04 GMT

X-Cache: MISS from localhost.localdomain

X-Cache-Lookup: MISS from localhost.localdomain:3128

Via: 1.1 localhost.localdomain (squid/3.5.20)

Connection: close


sample_time = 1549872194.638742 (Mon, 11 Feb 2019 08:03:14 GMT)

client_http.requests = 1074

client_http.hits = 0

client_http.errors = 5

client_http.kbytes_in = 977

client_http.kbytes_out = 4855

client_http.hit_kbytes_out = 0

server.all.requests = 707

server.all.errors = 0

server.all.kbytes_in = 4728

server.all.kbytes_out = 1001

server.http.requests = 707

server.http.errors = 0

server.http.kbytes_in = 4728

server.http.kbytes_out = 1001

server.ftp.requests = 0

server.ftp.errors = 0

server.ftp.kbytes_in = 0

server.ftp.kbytes_out = 0

server.other.requests = 0

server.other.errors = 0

server.other.kbytes_in = 0

server.other.kbytes_out = 0

icp.pkts_sent = 0

icp.pkts_recv = 0

icp.queries_sent = 0

icp.replies_sent = 0

icp.queries_recv = 0

icp.replies_recv = 0

icp.query_timeouts = 0

icp.replies_queued = 0

icp.kbytes_sent = 0

icp.kbytes_recv = 0

icp.q_kbytes_sent = 0

icp.r_kbytes_sent = 0

icp.q_kbytes_recv = 0

icp.r_kbytes_recv = 0

icp.times_used = 0

cd.times_used = 0

cd.msgs_sent = 0

cd.msgs_recv = 0

cd.memory = 0

cd.local_memory = 7

cd.kbytes_sent = 0

cd.kbytes_recv = 0

unlink.requests = 843

page_faults = 0

select_loops = 25783

cpu_time = 8.574439

wall_time = 49.492095

swap.outs = 216

swap.ins = 0

swap.files_cleaned = 0

aborted_requests = 4


# squidclient -h localhost mgr:info

HTTP/1.1 200 OK

Server: squid/3.5.20

Mime-Version: 1.0

Date: Mon, 11 Feb 2019 08:02:00 GMT

Content-Type: text/plain;charset=utf-8

Expires: Mon, 11 Feb 2019 08:02:00 GMT

Last-Modified: Mon, 11 Feb 2019 08:02:00 GMT

X-Cache: MISS from localhost.localdomain

X-Cache-Lookup: MISS from localhost.localdomain:3128

Via: 1.1 localhost.localdomain (squid/3.5.20)

Connection: close


Squid Object Cache: Version 3.5.20

Build Info:

Service Name: squid

Start Time:     Mon, 11 Feb 2019 07:51:14 GMT

Current Time:   Mon, 11 Feb 2019 08:02:00 GMT

Connection information for squid:

        Number of clients accessing cache:      2

        Number of HTTP requests received:       1018

        Number of ICP messages received:        0

        Number of ICP messages sent:    0

        Number of queued ICP replies:   0

        Number of HTCP messages received:       0

        Number of HTCP messages sent:   0

        Request failure ratio:   0.00

        Average HTTP requests per minute since start:   94.5

        Average ICP messages per minute since start:    0.0

        Select loop called: 23961 times, 26.970 ms avg

Cache information for squid:

        Hits as % of all requests:      5min: 0.0%, 60min: 0.0%

        Hits as % of bytes sent:        5min: 1.9%, 60min: 2.1%

        Memory hits as % of hit requests:       5min: 0.0%, 60min: 0.0%

        Disk hits as % of hit requests: 5min: 0.0%, 60min: 0.0%

        Storage Swap size:      91804 KB

        Storage Swap capacity:  89.7% used, 10.3% free

        Storage Mem size:       3860 KB

        Storage Mem capacity:    1.5% used, 98.5% free

        Mean Object Size:       135.20 KB

        Requests given to unlinkd:      843

Median Service Times (seconds)  5 min    60 min:

        HTTP Requests (All):   0.04277  0.05633

        Cache Misses:          0.03241  0.03829

        Cache Hits:            0.00000  0.00000

        Near Hits:             0.00000  0.00000

        Not-Modified Replies:  0.00000  0.00000

        DNS Lookups:           0.11405  0.11926

        ICP Queries:           0.00000  0.00000

Resource usage for squid:

        UP Time:        646.235 seconds

        CPU Time:       8.031 seconds

        CPU Usage:      1.24%

        CPU Usage, 5 minute avg:        1.71%

        CPU Usage, 60 minute avg:       1.32%

        Maximum Resident Size: 237808 KB

        Page faults with physical i/o: 0

Memory accounted for:

        Total accounted:         7691 KB

        memPoolAlloc calls:    224798

        memPoolFree calls:     231466

File descriptor usage for squid:

        Maximum number of file descriptors:   16384

        Largest file desc currently in use:     69

        Number of file desc currently in use:   31

        Files queued for open:                   0

        Available number of file descriptors: 16353

        Reserved number of file descriptors:   100

        Store Disk files open:                   0

Internal Data Structures:

           740 StoreEntries

           273 StoreEntries with MemObjects

           264 Hot Object Cache Items

           679 on-disk objects


[링크 : http://www.monitis.com/blog/how-to-monitor-squid-proxy-server/]

[링크 : https://linux.die.net/man/1/squidclient]

[링크 : https://wiki.squid-cache.org/SquidClientTool]

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Posted by 구차니

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많네... 귀찮은데 걍 openstack 까는게 편하려나?


[링크 : https://www.linux-kvm.org/page/Management_Tools]



+

아래 두개가 라이센스(apache)문제 없이 쓸수 있는 웹 기반으로 보이고

UI가 심플해서(libvirt 만 지원하는 녀석이라) 무난해 보인다.


[링크 : https://ovirt.org/download/]

[링크 : https://github.com/retspen/webvirtmgr/wiki/Screenshots]

Posted by 구차니

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forward는 -ing 붙여서 보면 좀 더 쉬울거 같은 개념..

forward proxy는 proxy에게 요청해서 받은 데이터를 "전달"해 받는 녀석이라면

(물론 forward proxy에 대개 caching 기능이 있기에 외부 대역폭을 줄이는 역활도 함)


reverse proxy는 사용자가 아닌 서버단에 적용하여 외부로 부터의 공격을 막아내는 용도로 쓰이는 개념

사용자가 proxy를 접근해서 쓰는걸 정방향이라고 보면 서버로는 역방향으로 쓴 듯?


[링크 : https://www.lesstif.com/pages/viewpage.action?pageId=21430345]

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Posted by 구차니

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