mirror/wireguard-install
1
0
Fork 0
mirror of https://github.com/angristan/wireguard-install.git synced 2024-11-24 05:56:02 +03:00
Code Issues Projects Releases Wiki Activity

Better IPv4 detection (#278)

Browse Source 
On some systems like Hetzner VM cloud i have a Point-to-Point interface so i have a peer address on the same line as my public IPv4 (look at peer here : https://linux.die.net/man/8/ip )

An example of `ip a` with peer is : 
```
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 96:00:00:a2:88:c2 brd ff:ff:ff:ff:ff:ff
    altname enp0s3
    inet XX.XX.XX.XX peer XX.XX.XX.XX/32 brd XX.XX.XX.XX scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::9400:ff:fea2:88c2/64 scope link 
       valid_lft forever preferred_lft forever
```

With a peer, the output of the command line 74 is : `XX.XX.XX.XX peer XX.XX.XX.XX`

I just modify this line with awk to print only the first field which is always the IPv4.
I think it's correct and it's work like a charm when there is a peer or not now. But tell me if it's not good for you :)

Thanks for your work !
This commit is contained in:
Ravinou 2021-10-15 18:13:06 +02:00 committed by GitHub
parent 5f4c2f8a38
commit e05e633014
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
wireguard-install.sh
View File

@ -71,7 +71,7 @@ function installQuestions() {
echo ""
# Detect public IPv4 or IPv6 address and pre-fill for the user
SERVER_PUB_IP=$(ip -4 addr | sed -ne 's|^.* inet \([^/]*\)/.* scope global.*$|\1|p' | head -1)
SERVER_PUB_IP=$(ip -4 addr | sed -ne 's|^.* inet \([^/]*\)/.* scope global.*$|\1|p' | awk '{print $1}' | head -1)
if [[ -z ${SERVER_PUB_IP} ]]; then
# Detect public IPv6 address
SERVER_PUB_IP=$(ip -6 addr | sed -ne 's|^.* inet6 \([^/]*\)/.* scope global.*$|\1|p' | head -1)