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2018年7月1日 星期日

[NAS] Private IP Server 與 Let's Encrypt Wildcard SSL 憑證 / HTTPS 服務

家裡擺了一台 Synology NAS 躲在防火牆後面,一直都是用 private ip 在服務的,以前 Let's Encrypt 有免費的 SSL 憑證服務,但驗證方式需要讓對方連到 server ,一直無法在 private ip server 啟用,可惜了點!然而,Let's Encrypt 開放 Wildcard SSL 憑證服務,採用 DNS TXT Record 驗證,這時就可以上場了!

我的 NAS 是幾年前買的 Synology DS216play ,他的 CPU 挺麻煩的,讓我額外安裝軟體都很不便利,原先想採用 certbot 來做事,安裝了 python3、pip 和 virtualenv 後,最後還是卡關,卡在安裝軟體還需要 compiler 來編譯,擺爛三個月後,我改用了 https://github.com/Neilpang/acme.sh

acme.sh 的使用很方便:

$ wget https://raw.githubusercontent.com/Neilpang/acme.sh/master/acme.sh
$ chmod a+x acme.sh
$ ~/acme.sh --issue -d *.changyy.org --dns --yes-I-know-dns-manual-mode-enough-go-ahead-please


如此後續再添加 TXT record 後,在執行

$ ~/acme.sh --renew -d *.changyy.org --dns --yes-I-know-dns-manual-mode-enough-go-ahead-please

就搞定了!剩下的步驟只是覆蓋憑證檔案跟重啟 web server :

$ grep certificate /etc/nginx/nginx.conf
    ssl_certificate           /usr/syno/etc/certificate/system/default/fullchain.pem;
    ssl_certificate_key       /usr/syno/etc/certificate/system/default/privkey.pem;
$ ls /usr/syno/etc/certificate/system/default/
cert.pem  chain.pem  fullchain.pem  privkey.pem


最後,我把 DNS 擺在 cloudflare 託管,還可以用 API 去處理 DNS TXT Record 更新,連續動作如下:

$ ls ~/.acme.sh/
$ wget https://raw.githubusercontent.com/Neilpang/acme.sh/master/dnsapi/dns_cf.sh -O ~/.acme.sh/dns_cf.sh
$ chmod 755 ~/.acme.sh/dns_cf.sh
$ CF_Key=YOUR_API_KEY_AT_PROFILE CF_Email=YOUR_CLOUDFLARE_EMAIL_ACCOUNT ~/acme.sh --issue --dns dns_cf -d *.changyy.org
$ sudo cp ~/.acme.sh/\*.changyy.org/\*.changyy.org.cer /usr/syno/etc/certificate/system/default/cert.pem
$ sudo cp ~/.acme.sh/\*.changyy.org/\*.changyy.org.key /usr/syno/etc/certificate/system/default/privkey.pem
$ sudo cp ~/.acme.sh/\*.changyy.org/ca.cer /usr/syno/etc/certificate/system/default/chain.pem
$ sudo cp ~/.acme.sh/\*.changyy.org/fullchain.cer /usr/syno/etc/certificate/system/default/fullchain.pem
$ sudo synoservicecfg --restart nginx


如此一來,就可以安排 crontab 用 root 每月跑一次了,另一個好處是可以在 NAS 執行完,再把憑證丟到一些 VPS 維運的機器上

# cat /root/lets-ssl-renew.sh
#!/bin/sh
CF_Key=YOUR_API_KEY_AT_PROFILE CF_Email=YOUR_CLOUDFLARE_EMAIL_ACCOUNT /root/acme.sh --issue --dns dns_cf -d *.changyy.org  && cp /root/.acme.sh/\*.changyy.org/\*.changyy.org.cer /usr/syno/etc/certificate/system/default/cert.pem && cp /root/.acme.sh/\*.changyy.org/\*.changyy.org.key /usr/syno/etc/certificate/system/default/privkey.pem && cp /root/.acme.sh/\*.changyy.org/ca.cer /usr/syno/etc/certificate/system/default/chain.pem && cp /root/.acme.sh/\*.changyy.org/fullchain.cer /usr/syno/etc/certificate/system/default/fullchain.pem && synoservicecfg --restart nginx && echo "SSL-Renew-Done" > /root/ssl-renew.log || echo "SSL-Renew-Failed" > /root/ssl-renew.log
echo date >> /root/ssl-renew.log

2017年5月31日 星期三

[Linux] cross compile tmux for Synology DS216play via DSM 6.1 Tool Chains - STMicroelectronics Monaco Linux 3.10.102 @ Ubuntu 16.04 64bit

連假最後一天跑來把玩一下 cross compiler ,想說未來應該會越來越常用 NAS 做事,覺得裡頭沒有個 tmux/screen 很煩,然而,等了很久還是沒人為 DS216play 編譯 tmux ,一直很搞不懂,直到我翻了這張表出來:

https://www.synology.com/en-global/knowledgebase/DSM/tutorial/General/What_kind_of_CPU_does_my_NAS_have

System Model CPU Model Cores Threads FPU Package Arch RAM
DS216play STM STiH412 Dual Core 2 Yes Monaco DDR3 1 GB

好的,看起來有點冷門的 STM STiH412/Monaco 囧,不過找一些討論串才知道,由於要讓 DS216play 可以做一些多媒體影音的事,所以,就別抱怨了 XD

下載 Tool chains: https://sourceforge.net/projects/dsgpl/files/DSM%206.1%20Tool%20Chains/STMicroelectronics%20Monaco%20Linux%203.10.102/

$ wget https://sourceforge.net/projects/dsgpl/files/DSM%206.1%20Tool%20Chains/STMicroelectronics%20Monaco%20Linux%203.10.102/monaco-gcc493_glibc220_hard-GPL.txz/download -O monaco-gcc493_glibc220_hard-GPL.txz
$ tar -xvf monaco-gcc493_glibc220_hard-GPL.txz
$ tree -L 1 arm-unknown-linux-gnueabi/
arm-unknown-linux-gnueabi/
├── arm-unknown-linux-gnueabi
├── bin
├── build.log.bz2
├── include
├── lib
├── libexec
└── share


前置環境:

$ sudo apt install make python gcc
$ chmod 755 $HOME/arm-unknown-linux-gnueabi $HOME/arm-unknown-linux-gnueabi/include $HOME/arm-unknown-linux-gnueabi/lib $HOME/arm-unknown-linux-gnueabi/bin $HOME/arm-unknown-linux-gnueabi/share


編譯 ncurses:

$ wget ftp://invisible-island.net/ncurses/ncurses.tar.gz
$ tar -xvf ncurses.tar.gz
$ cd ncurses-5.9
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin CC=$HOME/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc CFLAGS="-I$HOME/arm-unknown-linux-gnueabi/include"  ./configure --host arm-unknown-linux-gnueabi --prefix=$HOME/arm-unknown-linux-gnueabi
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin make
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin make install


編譯 libevent:

$ wget https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz
$ tar -xvf libevent-2.1.8-stable.tar.gz
$ cd libevent-2.1.8-stable
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin CC=$HOME/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc CFLAGS="-I$HOME/arm-unknown-linux-gnueabi/include"  ./configure --host arm-unknown-linux-gnueabi --prefix=$HOME/arm-unknown-linux-gnueabi
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin CC=$HOME/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc CFLAGS="-I$HOME/arm-unknown-linux-gnueabi/include"  make
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin make install


編譯 tmux:

$ wget https://github.com/tmux/tmux/releases/download/2.5/tmux-2.5.tar.gz
$ tar -xvf tmux-2.5.tar.gz
$ cd tmux-2.5
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin CC=$HOME/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc CFLAGS="-I$HOME/arm-unknown-linux-gnueabi/include -I$HOME/arm-unknown-linux-gnueabi/include/ncurses" LDFLAGS="-L$HOME/arm-unknown-linux-gnueabi/lib" ./configure --host arm-unknown-linux-gnueabi --prefix=$HOME/arm-unknown-linux-gnueabi
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin make
$ file tmux
tmux: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 2.6.32, not stripped


or:

$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin CC=$HOME/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc CFLAGS="-I$HOME/arm-unknown-linux-gnueabi/include -I$HOME/arm-unknown-linux-gnueabi/include/ncurses" LDFLAGS="-L$HOME/arm-unknown-linux-gnueabi/lib" ./configure --host arm-unknown-linux-gnueabi --prefix=$HOME/arm-unknown-linux-gnueabi --enable-static
$ PATH=$PATH:$HOME/arm-unknown-linux-gnueabi/bin make
...
...
cmd-string.o: In function `cmd_string_split':
cmd-string.c:(.text+0x820): warning: Using 'getpwnam' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
cmd-string.c:(.text+0x760): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$HOME/arm-unknown-linux-gnueabi/lib/libevent.a(evutil.o): In function `test_for_getaddrinfo_hacks':
evutil.c:(.text+0x1be8): warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$HOME/arm-unknown-linux-gnueabi/lib/libevent.a(evutil.o): In function `evutil_unparse_protoname':
evutil.c:(.text+0x1554): warning: Using 'getprotobynumber' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$HOME/arm-unknown-linux-gnueabi/lib/libevent.a(evutil.o): In function `evutil_parse_servname':
evutil.c:(.text+0x14a0): warning: Using 'getservbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$ file tmux
tmux: ELF 32-bit LSB executable, ARM, EABI5 version 1 (GNU/Linux), statically linked, for GNU/Linux 2.6.32, not stripped


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