Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [isp]

An Internet service provider (ISP) is an organization that provides access to the Internet.

An Internet service provider (ISP) is an organization that provides access to the Internet.

Internet service providers can be either community-owned and non-profit, or privately owned and for-profit.

Access ISPs directly connect clients to the Internet using copper wires, wireless or fiber-optic connections. Hosting ISPs lease server space for smaller businesses and other people (colocation). Transit ISPs provide large amounts of bandwidth for connecting hosting ISPs to access ISPs.

There are 3 tiers:

  • Tier 1: a tier 1 network is one that can reach every other network on the Internet without purchasing IP transit or paying settlements.
  • Tier 2: a tier that can access some part of the network without paying transit
  • Tier 3: only uses transit

Source wikipedia

318 questions
0
votes
1 answer

If I relocate my website's server (changing the IP in the process), will my users be able to access it under the same domain?

If I first publish my website from my server which is in city A, and then move this server to city B (which I expect to change its IP address), will the website's users still be able to access it under the same URL? I'm thinking about this problem…
Miodek
  • 3
  • 1
0
votes
1 answer

Self hosting/Colocation multiple VMs with public IP addresses on single server

I have a single server that is running some VMs. I want each of these VMs to be accessed through public IP addresses correspondingly. I'm looking into hosting the server on my own and get a block of IPs from my ISP, or by putting it in a colocation…
5et
  • 101
  • 2
0
votes
0 answers

Setup new router with SQM - Buffer Bloating solution

Scenario. I'm in Tbilisi, Georgia. I have very high ping to EU servers(100ms+) plus a huge buffer bloating problem, this test gave me the F rank: https://www.waveform.com/tools/bufferbloat I use an optical Fiber connection, 100 Mbps connection from…
MrVerde
  • 1
  • 1
0
votes
1 answer

Load balancing ISPs without double NAT

I configures my TP-Links ER605 multi-wans router to load balance between my two ISPs (that is working). But since my Web/NAS server is behind my router on the 192.168.2.0 network, any computers on 192.168.0.0 and 192.168.1.0 can't access the NAS or…
Michel S
  • 11
  • 3
0
votes
0 answers

Website will not load for certain ISPs

My website will not load correctly for certain ISPs. I have verified with both the DNS provider and the website host that all information is 100% correct. However, certain internet providers yield this error message "DNS_PROBE_FINISHED_NXDOMAIN". If…
Diana
  • 1
0
votes
1 answer

Is rejecting email based on IP address in chain allowed?

A major ISP is rejecting email (bouncing with error 550) on the basis that an IP address in the transmission chain is on their 'blocklist'. Are they allowed to do this and still be IETF compliant? All I can find is RFC 2821: An SMTP server MAY…
Jake
  • 101
0
votes
1 answer

How to find out DNS Server IP of other ISPs

I am currently building a tool that needs the response from multiple different DNS Servers. The programming part is all done but I am currently lacking the IP Addresses of major ISP DNS Servers. All I can find are, what I assume, old ones that don't…
Techguy59911
  • 3
  • 1
0
votes
1 answer

TCP DUP ACK/Out-of-Order/Previous segment not captured/Retransmission flooded on wireshark logs

Due to slow network, I installed wireshark on the device(laptop) to find this This is a log of the device using internet(Downloading a file),as you can see at the right end of the screenshot, the whole log is full of these TCP DUP…
user253776
  • 1
  • 1
  • 1
0
votes
1 answer

What is this private LAN address accessible through my ISP?

Recently some websites I regularly visit (most recently docker.com, atlasobscura.com; both of these sites return an issue with a fortinet-ca2 certificate) have started showing certificate issues on my computer. I thought this is some mix-up so I…
Nikola Novak
  • 101
  • 1
0
votes
1 answer

Unable to route ports, ISP assigned private address - connection down issues every 4 hours

I have a big problem, I live in an area where there is no fiber or ADSL connection and I connect to the internet using a 4g+ sim in a 4g+ router (Tp-Link Archer MR600). The connection is just fine: ping ~50ms - dw 240mb - up 50mb but there are a…
Roberto Manfreda
  • 45
  • 9
0
votes
0 answers

How to check if my server's IP has somehow been blocked by some ISP?

I have an app, published on Play Store and App Store, that works via API with our webservices. Nothing fancy, really really basic stuff. Now, some customers can't use the app because it can't reach the servers. I know the app is not reaching the…
bimbo1989
  • 101
  • 1
0
votes
1 answer

PTR recored Issue

We have 2 Mail servers ( Internal and External) the External is hosted by ISPA with ip address of 62.xxx.xxx.xxx, we use to have the internet from the same ISPA, and the PTR record is already setup. We changed the ISP to ISPB with subnet of…
Okok
  • 1
0
votes
2 answers

Losing connection to servers after 5 min (different ports)

A month ago I moved and made a new contract with a new ISP (Claro Peru). Since I switched from ISP I noticed that my connections to servers are always cut after 5 minutes of inactivity (Connections to ports 20, 22, 5432, 3306). This happens on my…
Jean Paul CP
  • 111
  • 1
0
votes
1 answer

| rDNS | IP gets resolved with a wrong hostname

I've been trying to set up rDNS so my IP could get resolved to my hostname in a program which has a built in rDNS lookup feature. I had done everything I was suggested (ask my ISP to make a PTR record for me, set up A & SRV records at my…
Henry
  • 3
  • 1
0
votes
1 answer

Preventing Script Injection from ISP (Proxy Analyzer) through VPN

I'm using Sophos SSL VPN Client. But I'm using BSNL ISP. Whenever I connect my VPN and browse any HTTP non-secured websites ADS gets injected into the JS script file. But when I disconnect a VPN and browse any non-secured websites. Script injection…
Nɪsʜᴀɴᴛʜ ॐ
  • 143
  • 1
  • 10
1 2 3
…
21 22