Log for
電訊台
PING google.com (172.217.163.238): 56 data bytes
64 bytes from 172.217.163.238: icmp_seq=0 ttl=55 time=588.386 ms
64 bytes from 172.217.163.238: icmp_seq=1 ttl=55 time=249.111 ms
64 bytes from 172.217.163.238: icmp_seq=2 ttl=55 time=356.021 ms
64 bytes from 172.217.163.238: icmp_seq=3 ttl=55 time=614.426 ms
64 bytes from 172.217.163.238: icmp_seq=4 ttl=55 time=656.599 ms
Request timeout for icmp_seq 5
Request timeout for icmp_seq 6
Request timeout for icmp_seq 7
64 bytes from 172.217.163.238: icmp_seq=7 ttl=55 time=1098.379 ms
64 bytes from 172.217.163.238: icmp_seq=8 ttl=55 time=1422.580 ms
64 bytes from 172.217.163.238: icmp_seq=9 ttl=55 time=1274.885 ms
Request timeout for icmp_seq 11
64 bytes from 172.217.163.238: icmp_seq=11 ttl=55 time=1513.130 ms
64 bytes from 172.217.163.238: icmp_seq=12 ttl=55 time=1469.736 ms
Request timeout for icmp_seq 14
64 bytes from 172.217.163.238: icmp_seq=13 ttl=55 time=2170.411 ms
Request timeout for icmp_seq 16
Request timeout for icmp_seq 17
Request timeout for icmp_seq 18
64 bytes from 172.217.163.238: icmp_seq=18 ttl=55 time=1607.623 ms
64 bytes from 172.217.163.238: icmp_seq=19 ttl=55 time=1560.932 ms
64 bytes from 172.217.163.238: icmp_seq=20 ttl=55 time=1785.494 ms
64 bytes from 172.217.163.238: icmp_seq=21 ttl=55 time=1949.857 ms
^C
--- google.com ping statistics ---
24 packets transmitted, 15 packets received, 37.5% packet loss
round-trip min/avg/max/stddev = 249.111/1221.171/2170.411/577.438 ms
一個source同dst都係public ip既packet係佢地內部network行緊,未出去另一家
多數係入左佢嘅access lv之後到出返去公海前都係咁
Eg 弊公司入左OLT之後到交俾其他ISP/出返去人地嘅network/end user前都係private ip
install 左個linux vm係gcp , 唔識裝個ssh server 上去
首先係公司機gen條ssh key 然後將public key加去
~/.ssh/authorized_keys
SSH 條private key 係唔係跟部PC, 我係屋企部機試完, SEND去公司, 好似唔得
嗱 我果度呢 就係timeout既 (Silently drop packet)
Ping未必work,如果你GCP set左唔應ICMP
咁即係我點都SSH 唔到? 定係轉port 先得?
都係要睇你enterprise firewall點set
vim /etc/ssh/sshd_config
Port 22 <— 改左佢
如果你真係相信政府嘅話,真的要之前WhatsApp隔離政策🤣🤣🤣🤣🤣
如果呢單新聞實行咗嘅話,香港直接去美國速度咪會慢咗囉
記住一樣野,Network debug 必須要做Traceroute
Netvigator Biz -> Netvigator home
我諗到 有兩部security license,係屋企自己同自己site to site VPN
即係例如將佢改行CGM mode 來增強NAT 效能,路由既效能就降低
“屋企用緊Cisco 2911,行緊dual WAN"
我一半半啦, 而加份工學到野,但係唔知自己想向咩方向發展
平時係datacenter唔多覺, 因為成個DC都好嘈
呢個速度都好快,但係新聞認為華為有後門可以做一啲間諜行動,所以咪停止呢啲行為囉
去台灣嘅 extension 一嚟無咁多 bandwidth 二來 physical routing 會失去低延遲優勢
但係嗰plan 都仲有個菲律賓喎, 如果台灣因為以上啲問題,未必去到咁快嘅話,可能菲律賓已經解決咗
即係香港換深圳換海南或者換臺灣 去洛杉磯 都未必去到咁高速度?
同埋本身留落啲 BU 淨係 share 到 1FP
今日收到通知, 唔再延遲home office, 全部要番工,有提每人派口罩一盒,但唔係明天就有。
由年初五番工到上星期五,公司無全民派口罩不但止,仲無安排量體溫,我地公司都好多同事新年假期回鄉,有啲住深圳,我地日日都驚住咁番工,真係唔死都要番。😞
講開派口罩,唔知係咪 因為炒左人先有錢補貼買口罩既錢。
如果想開vpn, 駁TFS去自己電腦都唔會work?