tail /var/www/log/nginx.error.log -n 100
2014/03/29 05:10:53 [crit] 3122#0: *1 connect() to unix:/var/www/apps/r_code/socket/.unicorn.sock failed (2: No such file or directory) while connecting to upstream, client: 93.171.122.231, server: _, request: "GET / HTTP/1.1", upstream: "http://unix:/var/www/apps/r_code/socket/.unicorn.sock:/", host: "snowboarding.by"


ls -la /var/www/apps/r_code/socket
srwxrwxrwx 1 deployer deployer    0 Mar 29 06:37 .unicorn.sock